Chemical Storage Tank Systems And Accessories

Product and Resource Guide

Table Of Contents

Introduction 1 Pre-Purchase Guide 35

Who is Poly Processing? 2 Chemical Resistance Guide 36
About XLPE 4 Limited Warranty 37
NSF Certification 5 Tank Specifications 38
Our Innovations 6 our tank offerings 39
OR-1000™ 6 SAFE-Tank® System 41
IMFO® 7 Vertical Tanks With IMFO® 42
SAFE-Tank® 8 Vertical Tanks 43
The B.O.S.S.™ 9 Cone-Bottom Tanks 44
SAFE-Surge™ Manway Covers 9 Open-Top Tanks 45
Enhanced Bellows Secondary Containment Basins 46
Transition Fittings 9
Horizontal Tanks 47
Our Tank Systems 10
Fittings and Accessories 48
Sodium Hypochlorite 11
fittings 49
Sulfuric Acid 15
plumbing 53
Hydrochloric Acid 19
manways/lids 58
additional chemicals overview 23
accessories 60
Sodium Hydroxide 25
restraints 62
Hydrofluoric Acid 27
vents 63
Hydrofluosilicic Acid 29
delivery 64
Ferrics, Alums and polymers 31
hydrogen peroxide 33
 INTRODUCTION

Introduction
When chemical storage solutions are smarter, your job is easier.

That is our goal at Poly Processing – to bring you safer, smarter tanks and fittings that
make chemical storage easy for you.

We do this by basing our systems on your processing needs. At Poly, each storage
system is designed specifically for the chemical it will contain. So issues like fuming,
temperature sensitivity, weight and chemical reaction are all used to create the ideal
storage situation, at drawing-board level.

We’ve been pioneers in rotational molding – and that has led to one of the most durable
and affordable solutions for chemical storage: high-density crosslinked polyethylene,
or XLPE. This thermoset resin gives you 20 times the environmental stress crack
resistance, 10 times the molecular weight and 5 times the impact and tensile strength of
standard high-density linear polyethylene.

Our IMFO® (Integrally Molded Flanged Outlet) tanks give you the capability for full
drainage, which makes sludge buildup easier to control. Our B.O.S.S.™ fitting is designed for
a sure seal, with a simplified structure that prevents leakage. Our SAFE-Tank® double-wall
tanks provide containment with a minimal footprint. And our OR-1000™ engineered
system gives you 4 times the antioxidant strength of a standard polyethylene.

Combine those innovations with bend-over-backwards service, and you get a true
partner in advanced chemical storage.

1
Who Is Poly Processing?

Known as a leader in crosslinked polyethylene chemical tanks, Poly Processing is a

company dedicated to storage safety, as well as operational- and cost-effectiveness.
This national company has worked to raise the standards of the industry and continually
develops new and better storage concepts that are based on client feedback.

Formerly known as the Abell Company, Poly was founded in 1955 as an agricultural
distribution service. In 1970, the Abell family recognized a need for better storage solutions
for corrosive chemicals. They developed a process for rotomolded, crosslinked plastic
storage as an alternative to FRP, stainless steel and lined steel. Today, Poly Processing has
manufacturing facilities in Louisiana, California and Virginia.

Poly Processing works with industry professionals and major educational facilities to
research and develop further advances in chemical storage.

While Poly is known for its technological innovations, it is also known for its human
approach to business and service. Here, every phone call is answered by a person, not
a machine – and customer service is at the heart of all we do.

2
WHY POLY PROCESSING

3
About XLPE

High-density crosslinked polyethylene, or XLPE, is a thermoset resin that is specifically designed for critical
applications like chemical storage. During the XLPE manufacturing process, a catalyst (peroxide) is built into
the resin, which creates a free radical. The free radical generates the crosslinking of the polymer chain, so
the tank essentially becomes one giant molecule. The result is a resin that is specifically designed for critical
chemical applications.
XLPE versus Linear Polyethylene
• XLPE has 20 times the environmental stress crack resistance of HDPE.
• It has 10 times the molecular weight of HDPE.
• It has 5 times the impact and tensile strength of HDPE.
XLPE versus Fiberglass-Reinforced Plastic (FRP)
• XLPE offers seamless construction for greater strength.
• With FRP, chemicals can wick into the fiber, compromising tank life.
• XLPE can have a lower cost of ownership, due to the low amount of required maintenance compared to FRP.
• FRP often requires special handling to avoid cracking.
XLPE versus Carbon and Stainless Steel
• XLPE has seamless one-piece construction, which eliminates the potential for chemical attack points and
bad welds.
• Unlike carbon and stainless steel, XLPE has very broad chemical resistance capabilities without the need
for high-cost coatings.
• XLPE does not require ongoing maintenance and inspection.
• XLPE is a cost-effective solution to high-priced alloys.

4
 WHY POLY PROCESSING

We’re The Only Company

with chemical tanks certified to NSF/ANSI 61 standards!

NSF/ANSI Standard 61 addresses crucial aspects of drinking water system components – and Poly Processing
is the ONLY company offering storage tanks certified to NSF/ANSI 61 standards for chemical storage.
Most products are tested under NSF-61 with the pH 5, pH 8 and pH 10 exposure waters defined in the
standard. These exposure waters were designed to simulate the wide variety of potable water chemistries
encountered across North America. However, these exposure waters were not designed to predict leaching
of materials in chemical storage tanks. Poly Processing’s OR-1000™ products have been tested with the
NSF-61 exposure waters, as well as with corrosive chemicals, to ensure they are safe for potable water use.
Poly Processing offers NSF-certified solutions for the storage of:

Acetic Acid ≤ 80% Ferrous Sulfate ≤ 30% Sodium Aluminate ≤ 100%

Aluminum Sulfate ≤ 50% (Alum) Hydrochloric Acid ≤ 37% Sodium Bisulfite ≤ 40%
Calcium Carbonate 60–100% Hydrofluoric Acid ≤ 52% Sodium Carbonate ≤ 85%
Calcium Chloride ≤ 30% Hydrofluosilicic Acid ≤ 30% Sodium Chlorite ≤ 34%
Chlorine Dioxide ≤ 38% Liquid Ammonium Sulfate 35–45% Sodium Hydroxide ≤ 50%
Citric Acid ≤ 100% Magnesium Chloride ≤ 35% Sodium Hypochlorite ≤ 0.08%
Copper Sulfate ≤ 25% Phosphoric Acid ≤ 75% Sodium Hypochlorite ≤ 15%
Deionized Water Poly Aluminum Chloride ≤ 100% Sodium Permanganate ≤ 40%
Ferric Chloride ≤ 50% Polyorthophosphate ≤ 100% Sodium Silicate ≤ 100%
Ferric Sulfate ≤ 60% Potable Water Sulfuric Acid ≤ 98%
Ferrous Chloride ≤ 37% Potassium Hydroxide ≤ 50% Zinc Orthophosphate ≤ 100%

Talk to your Poly Processing representative to find out more – or visit our website, www.polyprocessing.com,
to review our NSF white paper.

5
OR-1000™
An inner-surface technology for four times the antioxidant power.

Poly Processing’s exclusive OR-1000™ system was specifically designed to address the aggressive oxidation
effects of sodium hypochlorite, sulfuric acid and hydrochloric acid by adding an additional chemical barrier
between XLPE and the chemical. OR-1000’s engineered inner surface is made of medium-density
polyethylene, specifically formulated to resist oxidation. Its outer surface is made of XLPE for superior
strength. The 2 surfaces are molecularly bound together during the rotomolding process, creating a truly
seamless bond between the XLPE and the inner surface.
The advantages of OR-1000™:
• The result gives you 4 times the antioxidant strength of any polyethylene on the market today!
• All wetted surfaces are covered by OR-1000™, eliminating the opportunity for a chemical attack on the
structural portion of the tank.
• OR-1000™ can be used on any of our tanks, including SAFE-Tank® and IMFO® tank systems.

6
 OUR INNOVATIONS

Innovative Tank Solutions

IMFO®: integrally molded for major hazard control.

Traditional tank maintenance can be a challenge with many chemicals – so Poly has developed a unique
system that helps minimize the hazards associated with traditional vertical tank maintenance. With Poly’s
Integrally Molded Flanged Outlet, or IMFO® system, the flange is molded while the tank is processing,
making it a stress-free part of the tank. The flange is created from the same material as the tank – it’s not
an insert introduced during or at post-production.
The IMFO’s advantages are many:
• Since the flange is at the bottom of the tank, full drainage is achieved below the tank knuckle radius, which
can eliminate the need to enter the tank for cleaning.
• One-piece construction enhances long-term performance of the tank, since it doesn’t compromise the
tank hoop’s integrity or structural design.
• In aggressive applications, the complete flange face is protected by the antioxidant OR-1000™ system.
• The IMFO’s design brings you the highest amount of static head pressure, which contributes to the highest
net positive suction head (NPSH) of any vertical non-coned tank.

7
Innovative Tank Solutions
SAFE-Tank®: a complete system for secondary containment.

Poly Processing’s SAFE-Tank® is a “tank-within-a-tank” system that keeps contaminants from entering the
interstitial area. These tanks provide secondary containment to avoid the damaging of equipment or property,
loss of chemical, or injury to employees in the event of a spill.
The SAFE-Tank®:
• Provides 110% secondary containment.
• Will equalize the liquid and allow the chemical to be continually used until it is convenient to repair the tank.
• Is ideal for chemicals like sulfuric acid that can have dangerous exothermic reactions to water.
• Eliminates the expense, cost and maintenance of secondary concrete containment.
• Minimizes the system’s footprint by providing secondary containment in a more compact way.
• Adding and enhanced bellows transition fitting will maximize your SAFE-Tank® system's performance.
SAFE-Tank® systems (see page 41 for details) are also available with OR-1000™ for superior antioxidant resistance.

8
 OUR INNOVATIONS

Our Other Innovations

THE B.O.S.S.™:
A Simple Design For Better Leak Protection.
With its streamlined one-piece design, the B.O.S.S.™ (bolted one-piece sure seal) reduces
the seal point to a single gasket to greatly reduce chances for leakage. This unique fitting:
• Is constructed of polyethylene for chemical compatibility with your tank.
• Has an innovative backing ring design to reduce stress on the fitting and make it three
times stronger than plastic fittings.
• Is easy to maintain and troubleshoot since the pipe connection is extended beyond the
sidewall of the tank.
• Is available in 1, 2 and 3 inches I.D.
The B.O.S.S.™ is available in three alloy options: 316 stainless steel, titanium and C-276. It
comes fully assembled and pressure tested and can be installed through the tank wall as
with any other standard bulkhead fitting. See page 49 to find out more.

SAFE-Surge™ MANWAY COVERS:

Emergency Air Surge Protection For Pneumatic-Filled Tanks.
Poly’s SAFE-Surge™ manway covers ensure that your tank maintains the proper ACFM at all
times – even in the event of air surges that can’t be handled by primary venting. This system
was designed specifically for pneumatic-filled tanks. SAFE-Surge™:
• Is never to be considered part of your primary venting.
• Releases at a 6-inch water column to prevent over-pressurization.
• Features an easy inspection port.
• Is available for 19- and 24-inch manways.
This cover is REQUIRED in pneumatic filling operations excluding scrubbers. For detailed
venting requirements, please refer to the chart on page 63.

ENHANCED BELLOWS TRANSITION FITTINGS:

A Secure Yet Flexible Fully Contained SAFE-Tank® Bottom Discharge.
By incorporating an expansion joint, the tank expands freely during loading and unloading,
and it also virtually eliminates damage from piping vibrations caused by pumps. With this
performance-maximizing fitting:
• Containment of the expansion joint eliminates the threat of uncontained chemical leaks
and dangerous “spurts.”
• Piping layouts can be fully contained by connecting a dual-wall piping system onto the
fitting. This can mean a safer workplace and less threat to the environment.
• Unsurpassed containment of discharge is allowed on a SAFE-Tank®.
The pressure-tested internal components of the fitting come to you pre-assembled and
ready to install.

9
Our Tank Systems
Poly Processing understands the very specific storage requirements for every chemical
– so we have developed systems that meet the unique requirements of each product.
The following systems have been designed to optimize your system’s safety, longevity
and compatibility, based on the properties of the stored chemical. Please note that
each of these systems can be adapted to suit your particular needs.

NaOCl H2SO4 HCl

SODIUMHYPOCHLORITE SULFURIC ACID HYDROCHLORICACID

NaOH HF H2SiF6
SODIUMHYDROXIDE HYDROFLUORICACID HYDROFLUOSILICICACID

Fe+Al+()n H2O2
FERRICS,ALUMS,POLYMERS HYDROGENPEROXIDE

10
 OUR TANK SYSTEMS

Sodium Hypochlorite.
An aggressive oxidizer that presents a major storage challenge.

NaOCl
SODIUMHYPOCHLORITE

Commonly known as bleach, sodium hypochlorite is used in a

variety of applications, particularly for the disinfection of drinking
water and wastewater. When it comes to storage of this chemical,
three factors must be considered:

• UV can degrade sodium hypochlorite, so special precautions

must be taken to reduce this effect.

• Sodium hypochlorite typically contains transition metals such

as nickel, iron and copper, which can buildup in a storage tank
creating off-gassing.

• “Hypo” is a potent oxidizer, so all materials in the chemical’s

storage tank must be up to the task.

By addressing all three of these issues, this caustic chemical can

be contained in a more secure and effective manner, with a tank
system that meets NSF/ANSI Standard 61 for chemical storage.

11
 NaOCl
SODIUMHYPOCHLORITE The Poly Processing Hypo System
Poly Processing’s Sodium Hypochlorite Storage Systems are Poly’s OR-1000™ system is another key component of
specifically designed for containment of this challenging the Hypo System. OR-1000™ is the result of our exclusive
chemical. By using carbon black, white or gray compound rotomolding process, which creates a seamless bond
XLPE resin, UV degradation of the chemical can be between an inner surface of medium-density polyethylene
dramatically reduced. Mastic coatings and insulation are and an outer surface of high-density crosslinked polyethylene.
other ways to reduce UV’s effect on the chemical. OR-1000™ allows four times the antioxidant strength of
a normal polyethylene. In any application where OR-1000™
To prevent the potential buildup of transition metals in the is used, all wetted surfaces – including covering the face of
tank, Poly has developed the IMFO® system. This special the IMFO® drain – are completely covered by the material,
design allows for full drainage of the tank, which can greatly eliminating any opportunity for a chemical attack on the
increase the half-life of the chemical*. structural portion of the tank.
*Natural tanks are available for indoor use.

RESIN SPECIFIC GRAVITY FITTING GASKET BOLT

CHEMICAL
TYPE RATING MATERIAL MATERIAL MATERIAL
Sodium Hypochlorite 9%–15% XLPE with OR-1000™ 1.9 PVC EPDM/Viton® Titanium

»» See our website for a complete Chemical Resistance Chart.

NOTE: To meet NSF-61 certification, use EPDM or Viton® GF.

12
 NaOCl OUR TANK SYSTEMS
SODIUMHYPOCHLORITE

Tank Specifications Recommended System Components

Secondary containment:
Recommended.
Alternative: PPC secondary
containment basin of XLPE,
or SAFE-Tank® if concrete
containment is not available.

Fittings:
IMFO® to prevent transition
metal buildup

NOTE: Do NOT use stainless

steel or Alloy C-276 due to nickel
content reaction.

Plumbing:
Requires flexible, Hypo-resistant
connections [see page 54] to
• High-density crosslinked polyethylene (XLPE) allow for lateral and vertical tank
outer surface ensures maximum corrosion contraction and expansion, and to
protection through molecular bonding. reduce vibration stress

• OR-1000™ molecularly bonds XLPE with an

antioxidant inner surface that resists the heavily
oxidizing nature of sodium hypochlorite.
• Integrally Molded Flanged Outlet (IMFO®) Venting:
constructed as part of tank ensures complete SAFE-Surge™ manway
drainage. Non-IMFO® options also available cover is recommended on
pneumatically loaded systems
• UV protection for the chemical is achieved by to support tank longevity.
using compounded black, white or gray resin or
insulation coating to help maximize the half-life
of the chemical for outdoor applications.

The above components are just a few of the many options offered
by Poly Processing. See pages 38–63 for additional information 13
and products, or talk to your Poly Processing representative.
 CAUTION! The life of a Sodium Hypochlorite Storage System is
greatly affected by the quality of the chemical itself. Tank owners
are cautioned to use high-quality sodium hypo with low iron, nickel
and copper content, to avoid decomposition of the chemical and
acceleration of the oxidization and degradation of the tank.

Technical Overview:
Sodium Hypochlorite Storage Tanks

NaOCl
SODIUM HYPO-

TANK PLUMBING TO THE TANK

IMFO® Vertical Flat Bottom of XLPE with OR-1000™: • Required use of flexible connections with fittings on lower
• 1,000–13,650 gallons third of sidewall
• 1.9 spg rating »» Allows for lateral and vertical expansion and contraction
of the tank
NOTE: 230–1,000 gallons do not require OR-1000™. »» Reduces pump and piping vibration stress on the tank
Non-IMFO® alternative*: • Expansion joints must meet the following minimum requirements:
Standard Vertical Flat Bottom XLPE with OR-1000™: »» Axial Compression ≥ 0.67˝
»» Axial Extension ≥ 0.67˝
• 1,000–13,650 gallons
»» Lateral Deflection ≥ 0.51 "
• 1.9 spg rating »» Angular Deflection ≥ 14°
NOTE: 30–1,000 gallons do not require OR-1000™. »» Torsional Rotation ≥ 4°

*Three-year warranty offered on Non-IMFO® alternatives. VENTING

SAFE-Tank® XLPE: See chart on page 63.

• 1,500–8,700 gallons FOUNDATION AND RESTRAINTS

• 1.9 spg rating for primary tank with OR-1000™ • PPC IMFO® tank pad or smooth concrete, asphalt or steel
• Spg ratings for secondary tanks ≥ 3,000 gallons may be foundation designed to accommodate IMFO®, SAFE-Tank®
equal to or 1 less spg than primary tank. or vertical tank

• All other tank sizes must equal primary tank spg rating. • No restraint or ladder attachment bands circumscribing the
tank are allowed. Cable restraint systems must pass cables
NOTE: 55–1,000 gallons do not require OR-1000™. over the top of the tank.
Black, white or gray color or insulation with mastic coating TEMPERATURE
required in outdoor applications to minimize bleach Product should not exceed 100°F at delivery or during
degradation and maximize chemical half-life. storage to reduce the decomposition of the chemical and
SECONDARY CONTAINMENT maintain ASTM D1998 design parameters.
Recommend SAFE-Tank® secondary XLPE as shown above. LID
Non-SAFE-Tank® Alternatives: SAFE-Surge™ manway cover for pneumatically loaded tanks;
bolted manway cover for all other applications
• PPC secondary containment basin
• Other secondary containment suitable for sodium OPTIONS
hypochlorite, of adequate size for use Restraint systems for wind and seismic, level gauges, ladders,
FITTINGS heating pads, insulation, fume-tight manway cover, NSF-61
certification and engineering stamp.
Sidewall: Recommend 3˝ maximum B.O.S.S.™ fitting
ADDITIONAL SPECIAL REQUIREMENTS:
Dome: No restrictions
On-site generation (.08%) max size : 4000 gallons without
engineering review. 0.8% may require OR1000 system
depending on the installation parameters.
14
 OUR TANK SYSTEMS

Sulfuric Acid.
Challenging a storage tank’s strength and design safety.

H2SO4
SULFURIC ACID

Sulfuric acid is used in a huge array of industrial applications, for

everything from water and wastewater treatment to the manufacture
of chemicals, fertilizer and car batteries. But this highly exothermic
acid presents serious storage challenges, for a number of reasons.

• Sulfuric acid is an extremely heavy chemical that will test the

mechanical integrity of any material.

• The addition of water to concentrated sulfuric acid leads to the

dispersal of a sulfuric acid aerosol – or worse yet, an explosion.

• If sulfuric acid is spilled on metals, it can create highly flammable

hydrogen gas.

• Skin and other bodily burns from sulfuric acid are potentially
more serious than burns from other strong acids. Sulfuric acid
dehydrates whatever it touches, and the heat caused by that
reaction with water can create secondary thermal damage.

Poly Processing’s tanks and fittings can be combined specifically

to contain sulfuric acid, reducing the risks presented by this highly
acidic chemical.

15
 H2SO4
SULFURIC ACID The Poly Processing Sulfuric Acid System
Through a combination of innovative features, Poly Processing greatly lowers the risk for hazardous contact of sulfuric acid
creates the ideal system for sulfuric acid storage. With their with water. SAFE-Tank® systems are designed with OR-1000™.
robust load tolerance, crosslinked polyethylene tanks can
more than handle the chemical’s heavy weight. The molecular If secondary containment* is present, the IMFO® tank is
bonding of XLPE and tank wall thickness is particularly recommended. With the use of an IMFO® system instead
important in the bottom third of the tank, where high levels of of mechanical fittings, the tank’s structural integrity is
load are concentrated. maximized. Combine this tank design with the OR-1000™
system, and oxidation is reduced dramatically.
If secondary containment is not present, the Poly Processing
SAFE-Tank® is a smart choice. Along with containing the chemical All of these features lead to a safer tank – designed to reduce
from its surrounding environment, this double-walled tank safety risks and improve the longevity of the system.
*Containment tank is required with this chemical in all applications.

RESIN SPECIFIC GRAVITY FITTING GASKET BOLT

CHEMICAL
TYPE RATING MATERIAL MATERIAL MATERIAL
Sulfuric Acid ≥ 93% XLPE with OR-1000™ 2.2 PVC Viton® 316SS
Sulfuric Acid 80%–92% XLPE with OR-1000™ 2.2 PVC Viton® C-276
Sulfuric Acid < 80% XLPE 1.9 PVC Viton® C-276

»» See our website for a complete Chemical Resistance Chart.

NOTE: To meet NSF-61 certification, use Viton® GF.

16
 H2SO4 OUR TANK SYSTEMS
SULFURIC ACID

Tank Specifications Recommended System Components

Venting:
SAFE-Surge™ manway cover
is recommended on
pneumatically loaded systems
to support tank longevity.

Fittings:
Recommend enhanced bellows
transition fitting for bottom
sidewall discharge

Fittings:
B.O.S.S.™ fitting also
recommended to prevent leaks
• High-density crosslinked polyethylene (XLPE) NOTE: For concentrations
accommodates the heavy weight of sulfuric acid. less then 93%, DO NOT use
stainless steel.
• OR-1000™ bonds the XLPE with an antioxidant
inner surface, minimizing oxidation, reducing
the potential for fault and maximizing life span.
• SAFE-Tank® design creates a “tank within a
tank,” ensuring that water will not enter the
containment area. (Recommended where
secondary containment is not available)
• IMFO® tank is molded as a single unit. This
maintains hoop stress rating, adding to the
strength of the tank. (Recommended for
Plumbing:
situations with existing secondary containment) Reverse float gauge recommended
to ensure proper tank leveling.
• B.O.S.S.™ fitting provides bolted one-piece See page 55.
sure-seal design, limiting the seal point to a
single gasket for major leak prevention.

The above components are just a few of the many options offered
by Poly Processing. See pages 38–63 for additional information 17
and products, or talk to your Poly Processing representative.
Technical Overview:
Sulfuric Acid Storage Tanks

H2SO4
SULFURIC ACID

TANK FITTINGS
SAFE-Tank® of XLPE with OR-1000™: Sidewall: Recommend 3˝ maximum B.O.S.S.™ fitting
• 3,150–8,700 gallons Dome: No restrictions
»» 2.2 spg rating with OR-1000™ for primary tank
»» 1.9 spg rating for secondary tank PLUMBING TO THE TANK
• 1,550–2,500 gallons • Required use of flexible connections with fittings on lower
»» 2.2 spg rating with OR-1000™ for primary tank third of sidewall
»» 2.2 spg rating for secondary tank »» Allows for lateral and vertical expansion and contraction
• 55–1,000 gallons of the tank
»» 1.9 spg primary and secondary tanks »» Reduces pump and piping vibration stress on the tank
NOTE: 55–1,000 gallons do not require OR-1000™. • Expansion joints must meet the following minimum requirements:
* ≥ 94% concentration max tank size: 4,400 gallons
»» Axial Compression ≥ 0.67˝
(without engineering review)
»» Axial Extension ≥ 0.67˝
Non-SAFE-Tank® alternatives: »» Lateral Deflection ≥ 0.51 "
IMFO® Vertical Flat Bottom of XLPE with OR-1000™: »» Angular Deflection ≥ 14°
»» Torsional Rotation ≥ 4°
• 1,150–6,600 gallons
• 2.2 spg rating VENTING
IMFO® Vertical Flat Bottom of XLPE: See chart on page 63.
• 230–905 gallons
FOUNDATION AND RESTRAINTS
• 1.9 spg rating
NOTE: Limit one IMFO® per tank • Smooth concrete, asphalt or steel foundation designed to
accommodate IMFO®, SAFE-Tank® or vertical tank
Standard Vertical Flat Bottom of XLPE with OR-1000™:
• No restraint or ladder attachment bands circumscribing the
• 1,050–6,600 gallons tank are allowed. Cable restraint systems must pass cables
• 2.2 spg rating over the top of the tank.
Standard Vertical Flat Bottom of XLPE:
TEMPERATURE
• 30–1,000 gallons
Product should not exceed 100°F at delivery or during
• 1.9 spg rating
storage to maintain ASTM D1998 design parameters.
NOTE: ≥ 94% concentration max tank size: 4,000 gallons
(without engineering review) LID
SECONDARY CONTAINMENT SAFE-Surge™ manway cover for pneumatically loaded tanks;
bolted manway cover for all other applications
Non-SAFE-Tank® alternatives:
OPTIONS
• PPC secondary containment basin
Restraint systems for wind and seismic, level gauges, ladders,
• Other secondary containment suitable for sulfuric acid,
heating pads, insulation, fume-tight manway cover, NSF-61
of adequate size for use
certification and engineering stamp

18
 OUR TANK SYSTEMS

Hydrochloric Acid.
Controlling a chemical – and its fumes.

HCl
HYDROCHLORICACID

Also known as muriatic acid, hydrochloric acid is used to acidize

petroleum wells, remove scales from boilers, aid in ore reduction
and serve as a chemical intermediate, among other applications.
This pungent liquid is a strong, highly corrosive acid, and it
presents serious storage challenges.

• Hydrochloric acid has an extremely low pH, making it

highly corrosive.

• The chemical creates toxic fumes that can deteriorate

equipment – and these fumes can be fatal to employees.
To control the chemical’s fumes, the tank’s venting system
must be exact.

• Tank maintenance can also be an issue because of fuming.

Entering the tank must be avoided at all costs, and part
replacement must be minimized.

By creating a strong, corrosion-resistant tank system that ties

into a scrubber system, all of these issues can be addressed.

19
 HCl
HYDROCHLORICACID The Poly Processing Hydrochloric Acid System
Storing a chemical as corrosive and fuming as HCl takes Poly Processing’s OR-1000™ surface is ideal for HCl storage.
a truly specialized system. Poly Processing resolves these OR-1000™ has proven so effective in containing HCl that
issues with its tank, venting and fittings solutions. An Integrally systems using it have a 5-year warranty. These tanks bring
Molded Flanged Outlet, or IMFO®, allows for complete you the strength of high-density crosslinked polyethylene
drainage of the tank, which eliminates the need to enter the with an antioxidant surface.
tank for cleaning. This is imperative when dealing with such
a strongly fuming chemical. The IMFO® design also reduces Poly also incorporates airtight lids and customized
chances of having to replace parts, as the drainage system is scrubbers to accommodate the fuming of HCl.
part of the tank’s mold.

RESIN SPECIFIC GRAVITY FITTING GASKET BOLT

CHEMICAL
TYPE RATING MATERIAL MATERIAL MATERIAL
Hydrochloric Acid ≤ 37% XLPE with OR-1000™ 1.9 PVC EPDM C-276

»» See our website for a complete Chemical Resistance Chart.

20
 HCl OUR TANK SYSTEMS
HYDROCHLORICACID

Tank Specifications Recommended System Components

Secondary containment:
SAFE-Tank® is recommended
where secondary containment
is not available.

Fittings:
IMFO® system is recommended.

Fittings:
B.O.S.S.™ fitting is also
recommended to prevent leaks.

Plumbing:
• OR-1000™ binds the XLPE with an antioxidant Requires flexible connections with
fittings on lower third of sidewall
inner surface, which is vital when storing such to accommodate expansion and
a corrosive chemical. contraction and reduce vibration
stress on the tank
• IMFO® construction eliminates the need to
enter the tank for cleaning, helping employees
avoid HCl’s toxic fumes.
• High-density crosslinked polyethylene (XLPE)
ensures the strength of the tank.

Fume-tight manway cover:

17˝, 19˝ or 24˝ with EPDM gaskets

Scrubbers:
Individually designed to
support the reduction
of dangerous fumes into
The above components are just a few of the many options offered the environment
by Poly Processing. See pages 38–63 for additional information 21
and products, or talk to your Poly Processing representative.
Technical Overview:
Hydrochloric Acid Storage Tanks

HCl
HYDROCHLORICACID

TANK PLUMBING TO THE TANK

IMFO® Vertical Flat Bottom of XLPE with OR-1000™: • Required use of flexible connections with fittings on lower
• 1,000–13,650 gallons third of sidewall
• 1.9 spg rating »» Allows for lateral and vertical expansion and contraction
of the tank
NOTE: 230–1,000 gallons do not require OR-1000™. »» Reduces pump and piping vibration stress on the tank
Non-IMFO® alternative: • Expansion joints must meet the following minimum requirements:
Standard Vertical Flat Bottom XLPE with OR-1000™: »» Axial Compression ≥ 0.67˝
»» Axial Extension ≥ 0.67˝
• 1,000–13,650 gallons
»» Lateral Deflection ≥ 0.51 "
• 1.9 spg rating »» Angular Deflection ≥ 14°
NOTE: 30–1,000 gallons do not require OR-1000™. »» Torsional Rotation ≥ 4°

SAFE-Tank® XLPE: VENTING

• 1,500–8,700 gallons See chart on page 63.

• 1.9 spg rating for primary tank with OR-1000™ FOUNDATION AND RESTRAINTS
• Spg ratings for secondary tanks ≥ 3,000 gallons may be • PPC IMFO® tank pad or smooth concrete, asphalt or steel
equal to or 1 less spg than primary tank. foundation designed to accommodate IMFO®, SAFE-Tank®
• All other tank sizes must equal primary tank spg rating. or vertical tank
• No restraint or ladder attachment bands circumscribing the
NOTE: 55–1,000 gallons do not require OR-1000™. tank are allowed. Cable restraint systems must pass cables
SECONDARY CONTAINMENT over the top of the tank.
Recommend SAFE-Tank® secondary XLPE as shown above TEMPERATURE
Non-SAFE-Tank® Alternatives: Product should not exceed 100°F at delivery or during
storage to maintain ASTM D1998 design parameters.
• PPC secondary containment basin
• Other secondary containment suitable for hydrochloric LID
acid, of adequate size for use Fume-tight manway cover to manage release of chemical gases
FITTINGS OPTIONS
Sidewall: Recommend 3˝ maximum B.O.S.S.™ fitting Restraint systems for wind and seismic, level gauges, ladders,
Dome: No restrictions heating pads, insulation and engineering stamp

22
 OUR TANK SYSTEMS

Additional Chemicals Overview:

Solutions for storage of more popular chemicals.

Each chemical has its own specific properties, so Poly Processing makes it easy to adapt
our tanks with the type of gaskets, venting, fittings and other features necessary for that
chemical. The following are just a few of the many chemicals that can be stored safely
with a Poly Processing tank system. For details on those chemicals not listed here, talk
to your Poly Processing representative.

NaOH
SODIUMHYDROXIDE

HF
HYDROFLUORICACID

H2SiF6
HYDROFLUOSILICICACID

H2O2
HYDROGENPEROXIDE

23
 NaOH HF H2SiF6 H2O2
SODIUMHYDROXIDE HYDROFLUORICACID HYDROFLUOSILICICACID HYDROGENPEROXIDE

The Poly Processing

System Recommendation.

Tank Specifications Recommended System Components

Secondary containment:
SAFE-Tank® if concrete
containment is not available
Alternative: PPC secondary
containment basin or other
secondary containment
suitable for chemical, of
adequate size for use

Fittings:
IMFO® eliminates the need for
confined space entry.

Plumbing:
Tank options include: Requires flexible connections
[see page 54] to allow for lateral
• High-density crosslinked polyethylene (XLPE) and vertical tank contraction
construction for maximum strength and expansion and to reduce
vibration stress
• OR-1000™ antioxidant inner surface
• Integrally Molded Flanged Outlet (IMFO®)
for complete drainage
• SAFE-Tank® design for Venting:
“tank-within-a-tank” protection SAFE-Surge™ manway
cover is recommended on
pneumatically loaded systems
to support tank longevity.

The above components are just a few of the many options offered
24 by Poly Processing. See pages 38–63 for additional information and
products, or talk to your Poly Processing representative.
 OUR TANK SYSTEMS

Sodium Hydroxide.
Defying a chemical that “finds” leaks.

NaOH
SODIUMHYDROXIDE

Also known as caustic soda or liquid lye, sodium hydroxide is

used to adjust pH in water and wastewater treatment and in the
manufacture of chemicals, rayon, cellophane, pulp and paper,
aluminum, detergents, soaps and a wide range of other products.
As for storage:

• Sodium hydroxide is a “slippery” chemical that tries to find

leak paths.

• This chemical is extremely corrosive to tissue. It is also highly

toxic if ingested.

• If sodium hydroxide is not kept at a specific temperature, it will

crystallize and go solid.

A tank system and proper fittings from Poly Processing can reduce
your risk with this hazardous chemical.

25
 NaOH
SODIUMHYDROXIDE

The Poly Processing

Sodium Hydroxide System.

The key to storing sodium hydroxide properly is strong, safe containment. Since the chemical is so corrosive, secondary
containment is an absolute.
If secondary containment is already available, the IMFO® tank is recommended. IMFO® systems are ideal for Sodium Hydroxide
Systems, since their flange is actually a molded part of the tank, not an insert that could leak or fail. The IMFO® also ensures
long-term performance of the overall system, since it eliminates the need to drill into the sidewall of the tank and install a
mechanical fitting, which can create a maintenance issue for this chemical.
When secondary containment is not available, a SAFE-Tank® can meet this requirement. This “tank within a tank” extends the
margin of safety by providing a system with 110% secondary containment.
The tank’s high-density crosslinked polyethylene construction means greater strength. It is so strong, in fact, that Poly offers a
warranty of five full years on all tanks.

RESIN SPECIFIC GRAVITY FITTING GASKET BOLT

CHEMICAL
TYPE RATING MATERIAL MATERIAL MATERIAL
Sodium Hydroxide 50% XLPE 1.65 PVC EPDM 316SS

»» See our website for a complete Chemical Resistance Chart.

NOTE: To meet NSF-61 certification, use OR-1000™.

Tank Specifications & Technical Overview

IMFO® VERTICAL FLAT BOTTOM OF XLPE: Alternative secondary containment: PPC secondary
• 230–13,650 gallons containment basin or other secondary containment suitable
for sodium hydroxide, of adequate size for use
• 1.65 spg rating
Plumbing: Requires use of flexible connections with
NON-IMFO® ALTERNATIVES: fittings on lower third of sidewall. See page 54 for flexible
SAFE-Tank® XLPE: connections options.
• 55–8,700 gallons Venting: See chart on page 63.
• 1.65 spg rating for primary tank Foundation: PPC IMFO® tank pad or smooth concrete,
• Spg ratings for secondary tanks must be equal to asphalt or steel foundation designed to accommodate
primary tank. IMFO®, SAFE-Tank® or vertical tank
• All other tank sizes must equal primary tank spg rating. Temperature: Product should not exceed 100°F at delivery
Standard Vertical Flat Bottom XLPE: or during storage or drop below 50°F to prevent damage to
the chemical. Contact Customer Support if chemical is to
• 30–13,650 gallons exceed 100°F.
• 1.65 spg rating
Lid: SAFE-Surge™ manway cover for pneumatically loaded
tanks; bolted manway cover for all other applications

NOTE: Heating pad and insulation are highly recommended Options: Restraint systems for wind and seismic, level gauges,
to prevent crystallization of the chemical. ladders, heating pads, insulation, mixer mounts, OR-1000™
for NSF-61 certification and engineering stamp

The above components are just a few of the many options offered
26 by Poly Processing. See pages 38–63 for additional information and
products, or talk to your Poly Processing representative.
 OUR TANK SYSTEMS

Hydrofluoric Acid.
Reducing the risk of human exposure.

HF
HYDROFLUORICACID

Used in the production of aluminum, fluorocarbons and gasoline

and for applications like glass etching and uranium processing,
hydrofluoric acid is an extremely dangerous chemical that must be
handled with the utmost care.

• This corrosive liquid penetrates tissue more quickly than typical

acids. Toxicity can occur through dermal, ocular, inhalation and
oral routes.

• Since HF alters nerve function, accidental exposure can go

unnoticed by the victim, delaying treatment and increasing the
extent of injury.

• It can also be absorbed by the blood through the skin, reacting

with blood calcium and potentially causing a heart attack.

The extreme nature of this chemical calls for superior structural

integrity – the level of integrity Poly Processing is known for.

27
15
 HF
HYDROFLUORICACID

The Poly Processing

Hydrofluoric Acid System.

When people’s lives are at risk, you can take no chances. You need a system that goes above and beyond to prevent contact
with this corrosive acid. That system starts with a crosslinked polyethylene tank. XLPE is a thermoset resin that gives customers
20 times the environmental stress-crack resistance, 10 times the molecular weight and 5 times the impact and tensile
strength of HDPE. This system carries a warranty for a full five years.
A SAFE-Tank® can help reduce health and environmental concerns due to closed containment of hydrofluoric acid. If a
SAFE-Tank® is not a possibility, an IMFO® flange can be used to reduce hands-on maintenance, thereby reducing the risk
to your employees.

RESIN SPECIFIC GRAVITY FITTING GASKET BOLT

CHEMICAL
TYPE RATING MATERIAL MATERIAL MATERIAL
Hydrofluoric Acid XLPE 1.9 PP Viton® C-276

»» See our website for a complete Chemical Resistance Chart.

Tank Specifications & Technical Overview

IMFO® VERTICAL FLAT BOTTOM OF XLPE: Alternative secondary containment: PPC secondary
• 230–13,650 gallons containment basin or other secondary containment suitable
for hydrofluoric acid, of adequate size for use
• 1.9 spg rating
Plumbing: Requires use of flexible connections with
NON-IMFO® ALTERNATIVES: fittings on lower third of sidewall. See page 54 for flexible
SAFE-Tank® XLPE: connections options.
• 55–8,700 gallons Venting: See chart on page 63.
• 1.9 spg rating for primary tank Foundation: PPC IMFO® tank pad or smooth concrete,
• Spg ratings for secondary tanks ≥ 3,000 gallons may be asphalt or steel foundation designed to accommodate
equal to or 1 less spg than primary tank. IMFO®, SAFE-Tank® or vertical tank
• All other tank sizes must equal primary tank spg rating. Temperature: Product should not exceed 100°F at delivery
Standard Vertical Flat Bottom XLPE: or during storage to maintain ASTM D1998 design parameters.

• 30–13,650 gallons Lid: Fume-tight manway cover to manage release of

chemical gases
• 1.9 spg rating
Options: Restraint systems for wind and seismic, level
gauges, ladders, heating pads, insulation, mixer mounts and
engineering stamp

The above components are just a few of the many options offered
28 by Poly Processing. See pages 38–63 for additional information and
products, or talk to your Poly Processing representative.
 OUR TANK SYSTEMS

Hydrofluosilicic Acid.
Controlling heat to avoid hazardous reactions.

H2SiF6
HYDROFLUOSILICICACID

Hydrofluosilicic acid is used in water fluoridation, ceramic

production, electroplating, bottle sterilizing, brewing and many
other applications. This colorless, fuming liquid presents a host of
challenges in storage:

• It decomposes in heat, giving off toxic fluoride compounds, which

may react violently with alkaline materials.

• Hydrofluosilicic acid is corrosive to most metals – and it attacks

glass and stoneware.

• Like lye and sodium hypo, hydrofluosilicic acid has a tendency to

find leak paths.

• The chemical is incompatible with strong alkalis and strong

concentrated acids. It reacts with oxidizing agents, combustible
solids and organic peroxides.

• Its reaction with metals produces flammable hydrogen gas.

A complete system equipped with specialized features can reduce

the risks associated with this toxic chemical.

29
15
 H2SiF6
HYDROFLUOSILICICACID

The Poly Processing

Hydrofluosilicic Acid System.

Hydrofluosilicic acid is an extremely dangerous chemical. Human contact with it can result in severe injury or fatality. But when
the chemical is controlled in a stable environment, risk can be dramatically reduced. XLPE tanks are ideal in this situation. The
thermosetting of XLPE’s polymer chains acts as a netting to prevent permeation, leakage or seepage.
With its full drain design, a built-in IMFO® flange can help eliminate any buildup of sediment, lessening the potential for lead
and arsenic deposits over time. The IMFO® system’s design also keeps the tank intact, which is important for chemicals that
try to find leak paths. If an IMFO® isn’t an option, wetted fittings should be kept to an absolute minimum to avoid failure.
If secondary containment is not available, a SAFE-Tank® is recommended instead of an IMFO® tank. This tank within a tank
greatly reduces the chance for leaks.

RESIN SPECIFIC GRAVITY FITTING GASKET BOLT

CHEMICAL
TYPE RATING MATERIAL MATERIAL MATERIAL
Hydrofluosilicic Acid XLPE 1.9 PVC EPDM C-276

»» See our website for a complete Chemical Resistance Chart

NOTE: To meet NSF-61 certification, use OR-1000™, EPDM or Viton® GF.

Tank Specifications & Technical Overview

IMFO® VERTICAL FLAT BOTTOM OF XLPE: Alternative secondary containment: PPC secondary
• 230–13,650 gallons containment basin or other secondary containment suitable
for hydrofluosilicic acid, of adequate size for use
• 1.9 spg rating
Plumbing: Requires use of flexible connections with
NON-IMFO® ALTERNATIVES: fittings on lower third of sidewall. See page 54 for flexible
SAFE-Tank® XLPE: connections options.
• 55–8,700 gallons Venting: See chart on page 63.
• 1.9 spg rating for primary tank Foundation: PPC IMFO® tank pad or smooth concrete,
• Spg ratings for secondary tanks ≥ 3,000 gallons may be asphalt or steel foundation designed to accommodate
equal to or 1 less spg than primary tank. IMFO®, SAFE-Tank® or vertical tank
• All other tank sizes must equal primary tank spg rating. Temperature: Product should not exceed 100°F at delivery
Standard Vertical Flat Bottom XLPE: or during storage to maintain ASTM D1998 design parameters.

• 30–13,650 gallons Lid: Fume-tight manway cover to manage release of

chemical gases
• 1.9 spg rating
Options: Restraint systems for wind and seismic, level gauges,
NOTE: We recommend always venting this chemical outside ladders, heating pads, insulation, mixer mounts, OR-1000™
a confined environment due to health risks from the fumes for NSF-61 certification and engineering stamp
and to the damage it will cause to glass and metals.

The above components are just a few of the many options offered
30 by Poly Processing. See pages 38–63 for additional information and
products, or talk to your Poly Processing representative.
 OUR TANK SYSTEMS

Ferrics, Alums and Polymers.

Containing chemicals that react to their environment.

Fe+Al+()n
FERRICS,ALUMS,POLYMERS

Ferrics, alums and polymers are commonly used to treat water and
wastewater. There are several reasons why these substances require
specialized storage:

• Separation, settling and coagulation are major issues with these

chemicals – and those conditions can be compounded by
temperature variations.

• Settling and separation issues can lead to difficulty in pumping

the chemicals.

• The chemicals are often delivered at elevated temperatures,

testing the expansion and contraction capabilities of a tank.

• Ferrics create fumes that can defoliate surrounding trees and plants.

• Polymers can act as an environmental stress-cracking agent.

By providing the right kind of storage for these chemicals, safety can
be maintained – and the integrity of the product can be preserved.

31
15
The Poly Processing System
For Ferrics, Alums And Polymers.

Several of Poly Processing’s features can make your storage system work for handling ferrics, alums and polymers. An IMFO®
system is ideal for sludge control and ease of cleaning, since the tank drains at its true bottom. Heat pads and insulation can
help keep the chemicals at the optimal temperature, greatly reducing the chance of separation and settling.
A mixing system can also be installed to keep the chemicals from separating – and a scrubber can help reduce the effects on
foliage if you’re venting outdoors. As for handling elevated temperatures – this is where the strength of the XLPE tank comes in.
The crosslinked construction of these tanks allows for greater expansion and contraction, while maintaining structural integrity,
lessening your risk for tank failure.

RESIN SPECIFIC GRAVITY FITTING GASKET BOLT

CHEMICAL
TYPE RATING MATERIAL MATERIAL MATERIAL
Aluminum Sulfate XLPE 1.65 PVC EPDM 316SS
Ferric Chloride XLPE 1.65 PVC EPDM Titanium
Ferric Sulfate XLPE 1.65 PVC EPDM Titanium
Ferrous Chloride XLPE 1.9 PVC EPDM Titanium
Ferrous Sulfate XLPE 1.65 PVC EPDM Titanium
Polymers XLPE 1.35–1.9* PVC EPDM 316SS

*Based on type of polymer, amount of solids, etc., specific gravities can vary. Consult the specific MSDS for correct weight.
»» See our website for a complete Chemical Resistance Chart.

NOTE: To meet NSF-61 certification, use OR-1000™.

Tank Specifications & Technical Overview
IMFO® VERTICAL FLAT BOTTOM OF XLPE: Alternative secondary containment: PPC secondary
• 230–13,650 gallons containment basin or other secondary containment suitable
for ferrics, alums and polymers, of adequate size for use
• Appropriate spg rating for chemical as shown in
Chemical Resistance Chart Plumbing: Requires use of flexible connections with
fittings on lower third of sidewall. See page 54 for flexible
NON-IMFO® ALTERNATIVES: connections options.
Standard Vertical Flat Bottom XLPE:
Venting: See chart on page 63.
• 30–13,650 gallons
Foundation: PPC IMFO® tank pad or smooth concrete,
• Appropriate spg rating for chemical as shown in asphalt or solid steel foundation designed to accommodate
Chemical Resistance Chart IMFO®, SAFE-Tank® or vertical tank
SAFE-Tank® XLPE: Temperature: Product should not exceed 100°F at delivery
• 55–8,700 gallons or during storage to maintain ASTM D1998 design parameters.
Contact Customer Support if chemical is to exceed 100°F.
• Appropriate spg rating for chemical as shown in
Chemical Resistance Chart Lid: SAFE-Surge™ manway cover for pneumatically loaded
• Spg ratings for secondary tanks ≥ 3,000 gallons may be tanks; bolted manway cover for all other applications
equal to or 1 less spg than primary tank. Options: Restraint systems for wind and seismic, level gauges,
• All other tank sizes must equal primary tank spg rating. ladders, heating pads, insulation, fume-tight manway cover,
mixer mounts, OR-1000™ for NSF-61 certification and
engineering stamp

The above components are just a few of the many options offered
32 by Poly Processing. See pages 38–63 for additional information and
products, or talk to your Poly Processing representative.
 OUR TANK SYSTEMS

Hydrogen Peroxide.
Accommodating a potentially explosive chemical.

H2O2
HYDROGENPEROXIDE

Available in a variety of concentrations, hydrogen peroxide is used

as an oxidizing agent in textile, paper and fur processing. It is also
used as a plasticizer, a polymerization catalyst and a water and
sewage treatment chemical. It poses a number of challenges when
it comes to storage:

• Concentrated solutions are highly toxic and are strong irritants.

• Hydrogen peroxide is relatively unstable and decomposes into

water and oxygen when exposed to the environment. The
primary danger of this composition is fire and/or explosion.

For concentrations of hydrogen peroxide that are below 50%,

high-density crosslinked polyethylene is a smart option.

33
15
 H2O2
HYDROGENPEROXIDE

The Poly Processing

Hydrogen Peroxide System.

If there is a chance that hydrogen peroxide has escaped from its storage system, evacuation is mandatory, since explosion
could occur. Therefore, it’s imperative that an environment be made as leak-free as possible. Poly Processing’s crosslinked
polyethylene helps ensure that, by providing a high-strength storage option for hydrogen peroxide. The SAFE-Tank® system
offers tank-within-a-tank protection for secondary containment. And if secondary containment is already provided for the tank,
Poly Processing recommends the IMFO® tank system to provide complete drainage without entering the vessel shell, helping
personnel avoid contact with this strong irritant.

RESIN SPECIFIC GRAVITY FITTING GASKET BOLT

CHEMICAL
TYPE RATING MATERIAL MATERIAL MATERIAL
Hydrogen Peroxide XLPE 1.9 PVC/CPVC Viton® 316SS

»» See our website for complete Chemical Resistance Chart.

Tank Specifications & Technical Overview

IMFO® VERTICAL FLAT BOTTOM OF XLPE: Alternative secondary containment: PPC secondary
• 230–13,650 gallons containment basin or other secondary containment suitable
for hydrogen peroxide, of adequate size for use
• 1.9 spg rating
Plumbing: Requires use of flexible connections with
NON-IMFO® ALTERNATIVES: fittings on lower third of sidewall. See page 54 for flexible
SAFE-Tank® XLPE: connections options.
• 55–8,700 gallons Venting: See chart on page 63.
• 1.9 spg rating for primary tank Foundation: PPC IMFO® tank pad or smooth concrete,
• Spg ratings for secondary tanks ≥ 3,000 gallons may be asphalt or steel foundation designed to accommodate
equal to or 1 less spg than primary tank. IMFO®, SAFE-Tank® or vertical tank
• All other tank sizes must equal primary tank spg rating. Temperature: Product should not exceed 100°F at delivery
Standard Vertical Flat Bottom XLPE: or during storage to maintain ASTM D1998 design parameters.

• 30–13,650 gallons Lid: A hinged, weighted manway to prevent over-pressurization

due to rapid decomposition
• 1.9 spg rating
Options: Restraint systems for wind and seismic, level gauges,
NOTE: Use only flanged connections with hydrogen ladders, heating pads, insulation, mixer mounts, OR-1000™
peroxide. Threaded fittings should be avoided! and engineering stamp

The above components are just a few of the many options offered
34 by Poly Processing. See pages 38–63 for additional information and
products, or talk to your Poly Processing representative.
 ORDER INFORMATION

Pre-Purchase Guide

Before Ordering:
1. Determine capacity and location restrictions: gallons, maximum height and diameter, and indoor or outdoor installation.
2. Conduct a chemical review: name, concentration, specific gravity and temperature.
3. See the chemical resistance guide (page 36) for tank and fittings materials, specific gravity rating, and full-drain and secondary
containment requirements.
4. Use the complete 8-digit stock number when placing orders. Note: the first digit of each stock number indicates the
manufacturing location: 4 = Monroe, LA; 7 = Winchester, VA; 1 = French Camp, CA.
5. Download a tank schematic from polyprocessing.com and use this drawing to specify the fitting locations.
6. Contact a Poly Processing distributor for details.

Operating Parameters
TEMPERATURE TANK COLOR
• Tank specific gravity ratings are based on a product • High-density crosslinked polyethylene (XLPE) – natural,
temperature of 100 degrees F. black, white, gray.
• For tank designs for temperatures up to 150 degrees F, • Linear polyethylene (HDPE) – natural, black.
contact Customer Service. NOTE: For additional colors, contact Customer Service.
PRESSURE TANK DOME LOAD RATING
Atmospheric pressure must be maintained in the tank at all DO NOT stand or work on tank domes. The surface is flexible
times; vacuum must equal zero. and slippery. There is no weight or load rating for the dome.
VENTING
See chart on page 63.
PLUMBING
Requires use of flexible connections with fittings on lower GENERAL INFORMATION
third of sidewall
• Nominal capacity = Calculated tank capacity to top of
HEAT MAINTENANCE CONTROLS straight sidewall
Two thermostats are furnished, one for control and one for • All vertical, IMFO® and SAFE-Tank® systems greater than
redundancy; heating requirements vary depending on mainte- 500 gallons are manufactured in accordance with ASTM
nance temperature, ambient temperature and wind conditions. D1998 standards.
POLYURETHANE INSULATION WITH MASTIC COATING • Gallonage markers are approximate; not for precise
measuring or metering
• 2-inch nominal thickness
• R-value = 8.33/inch LOGISTICS
• Density = 2 lbs./cubic foot Delivery and shipping information is provided on page 64.
• Mastic coating is white acrylic vinyl.

35
15
Chemical Resistance Guide

RESIN SPECIFIC GRAVITY FITTING GASKET BOLT

CHEMICAL
TYPE RATING MATERIAL MATERIAL MATERIAL
Acetic Acid ≤ 80% XLPE 1.9 PP EPDM 316SS
Aluminum Sulfate XLPE 1.65 PVC/CPVC EPDM 316SS
Calcium Carbonate XLPE 1.9 PVC/CPVC EPDM 316SS
Calcium Chloride XLPE 1.65 PVC/CPVC EPDM Titanium
Citric Acid XLPE 1.65 PVC/CPVC EPDM 316SS
Deionized Water XLPE 1.65 PVC/CPVC EPDM 316SS
Ethylene Glycol XLPE 1.35 PVC/CPVC EPDM 316SS
Ferric Chloride XLPE 1.65 PVC/CPVC EPDM Titanium
Ferric Sulfate XLPE 1.65 PVC/CPVC EPDM Titanium
Ferrous Chloride XLPE 1.9 PVC/CPVC EPDM Titanium
Ferrous Sulfate XLPE 1.65 PVC/CPVC EPDM Titanium
Hydrochloric Acid ≤ 37% XLPE with OR-1000™ 1.9 PVC/CPVC EPDM C-276
Hydrofluoric Acid XLPE 1.9 PP Viton® C-276
Hydrofluosilicic Acid XLPE 1.9 PVC/CPVC EPDM C-276
Hydrogen Peroxide XLPE 1.9 PVC/CPVC Viton® 316SS
Magnesium Chloride 30% XLPE 1.65 PVC/CPVC EPDM Titanium
Phosphoric Acid > 50% XLPE 1.9 PVC/CPVC Viton® C-276
Phosphoric Acid ≤ 50% XLPE 1.9 PVC/CPVC Viton® 316SS
Potable Water HDPE 1.35 PVC/CPVC EPDM 316SS
Potassium Hydroxide XLPE 1.9 PVC/CPVC EPDM C-276
Sodium Bisulfite XLPE 1.65 PVC/CPVC EPDM 316SS
Sodium Carbonate XLPE 1.35 PVC/CPVC EPDM Titanium
Sodium Chlorite XLPE 1.9 PVC/CPVC Viton® GF 316SS
Sodium Hydroxide 50% XLPE 1.65 PVC/CPVC EPDM 316SS
Sodium Hypochlorite 9%–15% XLPE with OR-1000™ 1.9 PVC/CPVC EPDM/Viton® Titanium
Sulfuric Acid ≥ 93% XLPE with OR-1000™ 2.2 PVC/CPVC Viton® 316SS
Sulfuric Acid 80%–92% XLPE with OR-1000™ 2.2 PVC/CPVC Viton® C-276
Sulfuric Acid < 80% XLPE 1.9 PVC/CPVC Viton® C-276
»» For more resistance information, including details on other chemicals, visit www.polyprocessing.com
and access our Chemical Resistance Online Guide.

Temperature: Product temperature is limited to 100 degrees F. Gasket materials:

For temperatures from 100 to 150 degrees F, contact
Customer Service. • EPDM (ethylene propylene diene monomer) – good abrasion
and tear resistance with excellent chemical resistance
MATERIAL DESCRIPTIONS • Viton® (fluorocarbon) – broader temperature and
Fitting materials: chemical resistance
• PP (Polypropylene) – light, durable pipe or fitting material • Viton® GF/GORE-TEX® – highest temperature resistance
with outstanding chemical resistance Bolt materials:
• PVC (Polyvinyl Chloride) – stronger, more rigid pipe or
fitting material with excellent chemical resistance • 316SS (stainless steel type 316) – common alloy used in
many storage applications
• CPVC (Chlorinated Polyvinyl Chloride) – stronger, more
rigid pipe or fitting material with higher temperature rating • Titanium – strong as steel, but half the weight
• C-276 (Alloy C-276) – broader chemical resistance for more
difficult storage applications

36
 ORDER INFORMATION

Limited Warranty

POLY PROCESSING COMPANY PRODUCT WARRANTY PERIOD

CROSSLINKED POLYETHYLENE TANKS for all suitable applications except those listed below 5 yrs.

IMFO® tanks storing SODIUM HYPOCHLORITE 9–15 wt%

5 yrs.
XLPE w/ OR-1000™, 1.9 spg rating

NON-IMFO® tanks storing SODIUM HYPOCHLORITE 9–15 wt%

1,000 gallons and larger: XLPE w/ OR-1000™, 1.9 spg rating 3 yrs.
Less than 1,000 gallons: XLPE 1.9 spg rating

Tanks storing SULFURIC ACID ≥ 80% concentration

SAFE-Tank® to 8,700 gallons: XLPE w/ OR-1000™, 2.2 spg rating
3 yrs.
Vertical tanks 1,000–6,600 gallons: XLPE w/ OR-1000™, 2.2 spg rating
Vertical tanks less than 1,000 gallons: XLPE 1.9 spg rating

Tanks storing HYDROCHLORIC ACID ≤ 37% concentration

5 yrs.
XLPE w/ OR-1000™, 1.9 spg rating

Tanks storing HYDROCHLORIC ACID ≤ 37% concentration

3 yrs.
XLPE 1.9 spg rating

LINEAR POLYETHYLENE TANKS for all suitable applications except Sodium Hypochlorite 9–15%; Sulfuric Acid
3 yrs.
and Hydrochloric Acid of any concentration

Poly Processing Company’s warranty consists of repair or replacement of defective product. Owner and/or user may be
requested to provide a cleaned section of the product in question for evaluation. Product disposal or alternate use is the
owner’s and/or user’s responsibility. Warranty begins at date of shipment from PPC plant. Parts and ancillary items are
warranted for ninety (90) days.
Poly Processing Company’s liability is limited to either repair or replacement of its product. By accepting delivery of the
product, owner and/or user waives any claim against PPC for incidental or consequential damages as they relate to lost profits
or sales or to injury of persons or property, including secondary containment. Owner and/or user accepts full responsibility for
providing secondary containment appropriate and adequate for the stored material.
This warranty will be nullified if:
1. Product has been used in manner other than its originally declared purpose or if PPC tank recommendations have not
been followed.
2. Product has not been installed, used and maintained in accordance with a) all federal, state and local laws and regulations;
b) generally accepted best practices within the applicable industry; and c) guidelines set forth in the PPC Installation Manual
and/or in PPC Technical Overviews.
3. Product has been altered or repaired by unauthorized personnel.
4. Notification of the defect has not been made in writing within the warranty period.
5. Invoice for product has not been paid.
6. Product has been subjected to misuse, negligence, fire, accident, act of war or act of God.

The limited warranty described herein is Poly Processing Company’s sole 37

warranty and the complete, final and exclusive statement of the terms of
the warranty. Owner and/or user may not rely on any oral statement or
representations. This warranty is neither assignable nor transferable.
Tank Specifications

38
 TANK SPECIFICATIONS

Our Tank Offerings

SAFE-Tank® SYSTEMS VERTICAL TANKS WITH IMFO®

A “tank-within-a-tank” that creates secondary Tanks with drainage at the true base, allowing for
containment with a minimal footprint. Available minimal sludge buildup and easier maintenance
with or without OR-1000™ surfacing

VERTICAL TANKS CONE-BOTTOM TANKS

Standard-sized chemical storage tanks in Generally used in a process environment, where
crosslinked polyethylene for superior strength. the tank has to be 100% drained, and to address
Available with OR-1000™ antioxidant surface concerns about vortexing

39
Our Tank Offerings

OPEN-TOP TANKS SECONDARY CONTAINMENT BASINS

Process-oriented tanks that are typically used Used for the nesting of traditional vertical
for blending or for containment. Open-top tanks or vertical IMFO® tanks to meet secondary
often incorporate the use of mixer bridges. containment requirements

Visit www.polyprocessing.com
for easy, intuitive ordering!

HORIZONTAL TANKS
Primarily used in the agricultural industry for
application processes

40
 TANK SPECIFICATIONS

SAFE-Tank® System

SAFE-Tank® SYSTEMS – STORAGE & CONTAINMENT

T1 F.O.B. Approx. Overall
Stock Number Nominal Capacity Approx. O.D. Lid Size Ladder Height
LA VA CA Height
4 1 2008700
4 1 2110150
L • Assembly 8,700 11'-11" 14'-6" 24" 15'
4 1 2006650
4 1 2107450
L • Assembly 6,650 10'-3" 14'-3" 24" 14'
4 2005400
4 2106300
L • Assembly 5,400 11'-11" 9'-9" 24" 10'
7 1 2004400
7 1 2104950
L • Assembly 4,400 10'-3" 10'-3" 24" 10'
4 2003150
4 2103550
L • Assembly 3,150 10'-2" 7'-7" 24" 7'
4 2002500
4 2103100
L • Assembly 2,500 8'-0" 9'-11" 17" 10'
7 2001550
7 2101950
• Assembly 1,550 8'-0" 6'-11" 17" 7'
7 1 2001000
7 1 2101200
• Assembly 1,000 6'-5" 6'-7" 17" 6'
4 2000540
4 2100655
• Assembly 540 6'-5" 4'-0" 17"
7 1 2000405
7 1 2100445
Assembly 405 4'-0" 5'-9" 7"
4 7 1 2000160
4 7 1 2100220
Assembly 160 3'-0" 4'-11" 7"
4 7 1 2000105
4 7 1 2100150
Assembly 105 3'-0" 3'-6" 7"
4 2000055
4 2100085
Assembly 55 3'-0" 2'-5" 7"

• = Molded-in lifting lugs

L = Molded-in ladder attachment lugs

41
Vertical Tanks With IMFO®

VERTICAL TANKS WITH IMFO®

T2 F.O.B. Stock Nominal Approx. Approx. Lid IMFO® Ladder
LA VA CA Number Capacity O.D. Overall Height Size Size Height
• 1 1113650 13,650 13'-9" 16'-10" 24" 4" 13'
• 1 1112150 12,150 12'-0" 16'-8" 24" 4" 17'
• 4 1112150 12,150 12'-0" 17'-1" 24" 4"D 17'
• 1 1110300 10,300 12'-0" 14'-4" 24" 4" 14'
L • 4 1110150 10,150 11'-11" 14'-5" 24" 4" 14'
L • 4 1108500 8,500 10'-0" 16'-9" 24" 4" 17'
L • 4 1108100 8,100 11'-11" 11'-10" 24" 4" 12'
L • 1 1108050 8,050 10'-0" 15'-6" 24" 4" 15'
L • 4 1107300 7,300 10'-2" 14'-2" 24" 4" 14'
L • 1 1106600 6,600 10'-0" 13'-7" 24" 4" 13'
L • 4 7 1106150 6,150 10'-2" 12'-5" 24" 4" 12'
L • 4 1106100 6,100 8'-6" 16'-4" 24" 4"D 16'
• 1 1106100 6,100 10'-0" 12'-7" 24" 4" 12'
• 4 1105050 5,050 7'-10" 16'-0" 24" 4"D 16'
• 1 1104600 4,600 10'-2" 9'-7" 24" 4" 9'
L • 4 1104300 4,300 11'-11" 7'-1" 24" 4" 7'
L • 7 1104150 4,150 8'-6" 12'-6" 24" 3" 12'
• 1 1104050 4,050 8'-2" 12'-10" 24" 3" 12'
L • 4 1103900 3,900 7'-10" 12'-6" 24" 4"D 12'
L • 4 7 1103000 3,000 7'-1" 12'-0" 24" 3" 12'
L V 7 1102550 2,550 7'-1" 10'-4" 24" 3" 10' T4
L V 4 7 1102000 2,000 7'-1" 8'-6" 24" 3" 8' PADS FOR TANKS WITH IMFO ®

1 1101600 1,600 6'-1" 9'-1" 17" 3" 9' F.O.B. Stock

4 7 1101400 1,400 5'-4" 9'-11" 17" 3" Diameter Height
LA VA CA Number
1 1101250 1,250 5'-0" 9'-10" 17" 3"
7 8000004 4'-0" 4"
7 1101150 1,150 5'-4" 8'-3" 17" 3"
1 8000005 5'-0" 6"
7 1100905 905 5'-4" 6'-7" 17" 2"
7 8000054 5'-4" 4"
4 1100545 545 4'-0" 6'-11" 17" 2"
1 8000006 6'-0" 6"
F 7 1100475 475 4'-0" 6'-4" 17" 3"
7 8000071 7'-1" 4"
F 7 1100325 325 4'-0" 4'-8" 17" 3"
4 1 8000008 8'-2" 4"
F 7 1100230 230 3'-2" 4'-11" 17" 3"
4 8000086 8'-6" 4"
1 8000010 10'-0" 4"
SLOPED BOTTOM VERTICAL TANK WITH IMFO® 4 7 8000102 10'-2" 4"
T3 F.O.B. Stock Nominal Approx. Approx. Lid IMFO® Ladder 4 1 8000012 12'-0" 4"
LA VA CA Number Capacity O.D. Overall Height Size Size Height 1 8000014 14'-0" 4"
• 1 1211800 11,800 12'-0" 16'-6" 24" 4" 15' 4 8100086 8'-6" Slope 12" x 6"
L • 4 1206350 6,350 10'-2" 12'-7" 24" 4" 13' 1 8100010 10'-0" Slope 12" x 6"
L • 1 1206250 6,250 10'-0" 13'-1" 24" 4" 12' 4 8100102 10'-2" Slope 16" x 6"
L • 7 1204100 4,100 8'-6" 12'-11" 24" 3" 13' 1 8100012 12'-0" Slope 10" x 4"

• = Molded-in lifting lugs

L = Molded-in ladder attachment lugs
V = Molded-in lifting lugs – Virginia only
D = Double IMFO® available
F = Flat backing ring required

42
 TANK SPECIFICATIONS

Vertical Tanks

VERTICAL TANKS
T5 F.O.B. Approx. Overall
Stock Number Nominal Capacity Approx. O.D. Lid Size Ladder Height
LA VA CA Height
• 1 1013650 13,650 13'-9" 16'-10" 24" 13'
L • 4 1012250 12,250 11'-11" 17'-1" 24" 17'
• 1 1012150 12,150 12'-0" 16'-8" 24" 16'
L • 4 1010300 10,300 11'-11" 14'-6" 24" 14'
L • 1 1010300 10,300 11'-11" 14'-6" 24" 14'
• 1 1009100 9,100 12'-0" 12'-11" 24" 12'
L • 4 1008500 8,500 10'-0" 16'-9" 24" 16'
L • 1 1008050 8,050 10'-0" 15'-8" 24" 15'
L • 4 1 1007300 7,300 10'-2" 14'-2" 24" 14'
L • 4 7 1006150 6,150 10'-2" 12'-4" 24" 12'
L • 4 1006100 6,100 8'-6" 16'-4" 24" 16'
• 1 1006100 6,100 10'-0" 12'-8" 24" 12'
L • 4 7 1005300 5,300 9'-2" 12'-10" 24" 13'
• 1 1005100 5,100 10'-2" 10'-7" 24" 10'
L • 4 1005050 5,050 7'-10" 16'-0" 24" 16'
1 1004925 4,925 9'-0" 11'-11" 24" 11'
• 1 1004900 4,900 12'-0" 8'-1" 24" 6'
L • 4 1004250 4,250 11'-11" 7'-0" 24" 7'
L • 7 1004150 4,150 8'-6" 12'-6" 24" 12'
L • 4 7 1003900 3,900 7'-10" 12'-9" 24" 12'
L • 7 1003850 3,850 10'-2" 8'-6" 24" 8'
• 1 1003650 3,650 10'-2" 8'-5" 24" 6'
L • 4 7 1003000 3,000 7'-1" 11'-8" 24" 12'
L 4 7 1002650 2,650 8'-0" 8'-9" 24" 8'
L V 4 7 1002550 2,550 7'-1" 10'-4" 24" 10'
1 1002500 2,500 8'-0" 8'-2" 24" 8'
L 4 7 1002250 2,250 8'-0" 7'-9" 24" 7'
1 1002000 2,000 7'-5" 7'-5" 17" 7'
L V 4 7 1002000 2,000 7'-1" 8'-6" 24" 8'
7 1001950 1,950 5'-4" 13'-5" 17"
1 1001700 1,700 6'-1" 9'-7" 17" 9'
1 1001550 1,550 5'-1" 11'-9" 17"

• = Molded-in lifting lugs

L = Molded-in ladder attachment lugs
V = Molded-in lifting lugs – Virginia only

VERTICAL TANKS CONTINUED »»

43
Vertical Tanks (continued)

T6
VERTICAL TANKS (continued)
F.O.B. Approx. Overall
Stock Number Nominal Capacity Approx. O.D. Lid Size Ladder Height
LA VA CA Height
4 1001450 1,450 7'-2" 6'-2" 17"
4 7 1001400 1,400 5'-4" 10'-0" 17"
4 7 1001150 1,150 5'-4" 8'-2" 17" 8'
1 1001090 1,090 5'-1" 8'-6" 17" 8'
7 1001050 1,050 5'-1" 8'-6" 17" 7'
4 1001000 1,000 7'-2" 4'-8" 17"
4 7 1000905 905 5'-4" 6'-9" 17" 6'
7 1000805 805 4'-0" 9'-11" 17"
4 1000755 755 5'-4" 5'-9" 24"
1 1000685 685 5'-1" 5'-4" 17"
7 1000615 615 4'-0" 7'-9" 17"
1 1000540 540 4'-0" 7'-0" 17"
4 7 1000540 540 4'-0" 6'-9" 17"
1 1000475 475 4'-0" 6'-3" 17"
7 1000400 400 3'-9" 5'-3" 7"
1 1000325 325 4'-0" 4'-8" 17"
1 1000300 300 3'-6" 4'-11" 7"
4 1000295 295 3'-10" 4'-5" 7"
7 1000281 281 2'-10" 7'-0" 7"
1 1000280 280 2'-10" 7'-0" 7"
1 1000230 230 3'-2" 4'-11" 17"
4 1000205 205 2'-7" 6'-2" 7"
4 1000155 155 2'-7" 4'-9" 7"
1 1000115 115 2'-6" 3'-11" 7"
4 1000100 100 1'-11" 5'-7" 7"
1 1000055 55 1'-11" 3'-5" 7"

Cone-Bottom Tanks
T7
CONE-BOTTOM TANKS
F.O.B. Overall Height
Stock Number Nominal Capacity Slope Degrees Approx. O.D. Lid Size Ladder Height
LA VA CA with Stand
1 4006850 6,850 60 10'-1" 20'-3" 24" 19'
4 4006500 6,500 45 9'-3" 19'-3" 24" 19'
1 4105550 5,550 30 10'-0" 15'-4" 24" 15'
4 4005350 5,350 45 9'-3" 16'-11" 24" 16'
4 1 4002300 2,300 30 7'-11" 9'-9" 16"/24" 9'
1 4001400 1,400 30 7'-11" 7'-2" 16"/24" 7'
1 4001070 1,070 45 5'-1" 11'-2" 17" 10'
1 4000735 735 48 5'-1" 8'-11" 17" 8'
1 4000615 615 44 4'-0" 9'-9" 17" 9'
1 4000335 335 44 4'-0" 6'-9" 17" 6'

44
 TANK SPECIFICATIONS

Open-Top Tanks

T8
OPEN-TOP / CONTAINMENT TANKS
F.O.B. Approx. Overall
Stock Number Nominal Capacity Approx. O.D. Flange Type Cover Type
LA VA CA Height
1 1514650 14,650 14'-0" 13'-1" Internal
1 1512300 12,300 12'-0" 15'-0" Internal
1 1506900 6,900 12'-0" 8'-4" Internal
1 1505000 5,000 12'-0" 6'-0" Internal
1 1504000 4,000 10'-0" 6'-11" Internal
7 1503650 3,650 8'-6" 9'-0" Internal
4 1503050 3,050 8'-0" 8'-5" External Domed Cover
1 1502890 2,890 10'-0" 5'-0" Internal
4 1502650 2,650 8'-0" 7'-3" External Domed Cover
1 1502400 2,400 7'-5" 7'-7" Internal
4 1502000 2,000 8'-0" 5'-7" External Domed Cover
7 1501800 1,800 6'-1" 8'-6" Internal
1 1501800 1,800 6'-1" 8'-7" Internal
7 1501750 1,750 7'-9" 5'-1" Internal
7 1501200 1,200 7'-8" 3'-8" Internal
1 1501200 1,200 6'-1" 5'-7" Internal
7 1501150 1,150 6'-1" 5'-7" Internal
7 1500960 960 5'-4" 6'-0" Internal
1 1500760 760 6'-1" 3'-7" Internal
7 1500715 715 6'-1" 3'-9" Internal
1 1500710 710 5'-1" 4'-9" Internal
7 1500700 700 5'-1" 4'-9" Internal
1 1500515 515 4'-0" 5'-7" Internal
4 1500470 470 3'-10" 5'-8" External Mod. Shoe Box
1 1500370 370 4'-0" 4'-0" Internal
7 1500360 360 4'-0" 4'-0" Internal
4 1500330 330 3'-10" 4'-0" External Mod. Shoe Box
4 1500160 160 2'-7" 4'-4" External Mod. Shoe Box
1 1500160 160 3'-1" 3'-0" Internal
7 1500155 155 3'-1" 3'-0" Internal

45
Secondary Containment Basins

T9
SECONDARY CONTAINMENT – CYLINDRICAL – NESTABLE
F.O.B. Approx. Overall
Stock Number Nominal Capacity Approx. O.D. Top* Approx. O.D. Bottom Flange Width
LA VA CA Height
4 1501500 1500 11'-9" 11'-6" 2'-0" 2"
7 1500935 935 6'-7" 6'-3" 4'-0" 2"
7 1500570 570 6'-6" 6'-4" 2'-7" 2"

T10
SECONDARY CONTAINMENT – RECTANGULAR
F.O.B. Approx. I.D. Approx. Overall
Stock Number Nominal Capacity Approx. I.D. Length Flange Width
LA VA CA Width Height
4 5101850 1,850 9'-11" 8'-11" 2'-11" 3"
4 5101500 1,500 6'-3" 5'-3" 7'-2" 4"
4 5101150 1,150 5'-9" 4'-9" 6'-2" 3"
1 5101000 1,000 12'-7" 7'-7" 2'-4" N/A
1 5100730 730 8'-6" 4'-10" 3'-0" N/A
4 5100700 700 8'-0" 6'-0" 2'-1" 3"
4 5100635 635 9'-2" 3'-1" 3'-2" 4"
1 5100555 555 6'-6" 4'-10" 3'-0" N/A
4 7 5100440 440** 5'-8" 4'-8" 2'-6" 2"
4 5100385 385 5'-6" 3'-7" 2'-10" 2"
7 5100320 320 5'-6" 3'-5" 2'-8" 3"
4 5100225 225** 4'-10" 3'-2" 2'-1" 4"
1 5300175 175 10'-5" 5'-0" 8" 3"
4 1 5300135 135 3'-5" 3'-5" 2'-2" N/A
4 5100080 80 3'-1" 2'-1" 2'-1" 2"

* Diameter does not include flange.

** Support stand with grating is available.
NOTE: External support is required to maintain calculated volume on rectangular tanks.

46
 TANK SPECIFICATIONS

Horizontal Tanks

T11
HORIZONTAL TANKS
F.O.B. Nominal Saddle 4' Stand 6' Stand
Stock Number Approx. O.D. Approx. Length Lid Size
LA VA CA Capacity Stock # Stock # Stock #
1 3002600 2,600 5'-10" 13'-8" 16" 6319
4 3001950 1,950 5'-4" 13'-2" 19" 3464 3475 3486
1 3001050 1,050 4'-0" 11'-11" 17" 6316
4 3001000 1,000 5'-4" 7'-3" 10"/19" 3459 3472 3483
1 3000610 610 3'-11" 7'-9" 7" 6678
4 3000520 520 4'-0" 6'-4" 10" 3456 3470 3481
1 3000400 400 3'-6" 6'-0" 17" 6312
1 3000170 170 2'-8" 4'-7" 12" 6306

T12
HORIZONTAL LEG TANKS
F.O.B. Stock # for
Stock Number Nominal Capacity Approx. O.D. Approx. Length Lid Size
LA VA CA Metalwork
4 3502500 2,500 5'-5" x 6'-10" 13'-0" 22" 5307
1 3402500 2,500 5'-10" 14'-11" 17" 6329
1 3401750 1,750 5'-0" 12'-11" 17" 6328
4 3401600 1,600 4'-8" 13'-3" 22" 5303
1 3401060 1,060 5'-4" 7'-3" 17" 6327
4 3401050 1,050 4'-0" 12'-9" 16" 5299
1 3401030 1,030 4'-0" 11'-11" 17" 6326
4 3400700 700 4'-6" 6'-9" 16" 7614
4 1 3400515 515 4'-0" 6'-4" 12" 6325
4 3400410 410 3'-7" 5'-11" 12" 6324
4 3400330 330 3'-3" 6'-2" 12" 6323
4 1 3400220 220 3'-3" 4'-2" 12" 6322
4 1 3400135 135 2'-7" 3'-10" 12" 6321
4 3400065 65 1'-11" 3'-6" 7"

47
Fittings and Accessories
Poly Processing carries hundreds of fittings and accessories for chemical storage. The
following pages give an overview of our more popular products. For a complete list of
our inventory, with prices, please contact your Poly Processing representative. This
representative can also help you determine which products are most suitable for the
chemical you are storing.

48
 FITTINGS AND ACCESSORIES

Fittings

THE B.O.S.S.™ FITTING BOLTED FLANGE FITTINGS

This one-piece sure-seal fitting prevents leaks and adds value Available in PVC and CPVC. With these fittings, all aspects of
to your tank installation. Its one-piece design reduces the seal fitting maintenance can be done externally, with no tank entry
point to a single gasket, and its polyethylene construction required. These can be installed on sidewall or dome. Bolt heads
ensures chemical compatibility. Its back ring design reduces are encapsulated in polyethylene, providing chemical resistance.
stress on the fitting and makes it three times stronger than
similar plastic fittings. Bolts: 316 stainless steel, titanium, C-276 and Alloy 400
Body: standard PVC and CPVC
Bolts: 316 stainless steel, titanium and C-276
Connections: socketed or threaded
Body: Polyethylene
Sizes: 1˝, 11/2˝, 2˝, 3˝ and 4˝ threaded;
Connections: socketed 1˝, 11/2˝, 2˝, 3˝, 4˝ and 6˝ socketed
Size: 1˝, 2˝ and 3˝ Gaskets: EPDM, Viton® and Viton® GF
Gaskets: EPDM, Viton® and Viton® GF Options: flange adapter, siphon leg
Options: flange adapter, siphon leg

49
Fittings

BOLTED SPOOL FITTINGS BULKHEAD FITTINGS

The Bolted Spool Fitting is fabricated per the customer’s An economical fitting best used on small tanks in mild
requirements and is typically used for larger dome and applications. Can be installed on sidewall, overflow or dome.
sidewall connections. Use a Van Stone flange to connect May be used as a overflow fitting with all chemicals, since
piping. Bolted Spool Fittings 8 inches or greater are it’s non-wetted. Bulkhead Fittings must be installed from
manufactured with gussets. the inside of the tank, requiring tank entry for repairs and
maintenance. They should not be used on tanks greater than
Bolts: 316 stainless steel, titanium, C-276 and Alloy 400 3,000 gallons or tanks greater than 6 feet in height.
Body: standard PVC, CPVC and polypropylene Body: standard PVC, CPVC and polypropylene
Connections: flanged Connections: socketed or threaded
Size: 1˝ to 12˝ Size: 1/2˝ to 6˝
Gaskets: EPDM, Viton® and Viton® GF Gaskets: EPDM, Viton® and Viton® GF
Options: siphon leg Options: flange adapter, siphon leg

NOTE: Over time, this fitting “creeps,” causing the nut to loosen.
Regular monitoring for drips is critical.

50
 FITTINGS AND ACCESSORIES

Fittings

UNIVERSAL BALL DOME FLANGES UNIVERSAL BALL DOME BULKHEADS

These flanges are “self-aligning,” which allows for vertical Our Universal Ball Dome Bulkheads are also “self-aligning,”
plumbing on the dome of the tank up to 22 degrees. The which allows for vertical plumbing on the dome of the tank.
fitting can be repaired and maintained externally without tank An economical alternative to UBD flange-style bulkheads,
entry. Available with Ryton® bolts, an economical alternative since no additional bolts are required.
to titanium, C-276, and Alloy 400.
Body: standard PVC or CPVC
Bolts: 316 stainless steel, titanium, C-276, Alloy 400, Ryton®
Connections: threaded
Body: standard PVC or CPVC
Size: 1˝ to 3˝
Connections: threaded
Gaskets: EPDM, Viton® and Viton® GF
Size: 1˝ to 4˝
Options: flange adapter
Gaskets: EPDM, Viton® and Viton® GF
Options: flange adapter

NOTE: These fittings are for top-use only.

51
Fittings

MADE-VERTICAL FITTINGS FLANGE ADAPTERS

Made-Vertical Fittings are fabricated per the customer’s Includes a nipple and flange for connection to plumbing system
requirements. They are typically used for larger domes that
require a fitting to be above 4 inches and in those few cases Body: standard PVC and CPVC
where our domes are extremely steep. They may need to be Connections: socketed or threaded
supported independently of the tank. For optimal support,
install it on a tank runway or as close to the edge as possible. Sizes: 1˝, 11/2˝, 2˝, 3˝ and 4˝ threaded;
1˝, 11/2˝, 2˝, 3˝, 4˝, and 6˝ socketed
Bolts: 316 stainless steel, titanium, C-276, Alloy 400, Ryton®
Body: standard PVC or CPVC
Size: 6˝ to 10˝
Gaskets: EPDM, Viton® and Viton® GF
Options: flange adapter socketed or threaded

NOTE: This fitting is for top-use only.

52
 FITTINGS AND ACCESSORIES

Plumbing

BUTTERFLY VALVES BALL VALVES

Being slim and light weight yet robust, makes this the ideal Complete line of high-performance Ball Valves to meet
shutoff valve for IMFO® drain. varying needs
Bolts: 316 stainless steel, titanium, C-276, Alloy 400 Body: standard PVC, CPVC and polypropylene
Body: standard PVC, CPVC and polypropylene Connections: socketed, threaded or true union
Size: 2˝ to 6˝ Size: 1/2˝ to 6˝
Seals: EPDM, Viton® and Viton® GF Seals: EPDM, Viton® and Teflon®
Options: flange adapter Options: flange adapter

NOTE: Can also be used on mechanical fittings

by using a flange adapter.

53
Plumbing

FLEXIBLE HOSE CONNECTIONS FLEXIJOINT® EXPANSION JOINT

Flexible Hose Connections isolate the tank from the stresses These flexible PTFE connectors and tremor barriers are
and forces associated with pumps and piping. This connection designed to compensate for misalignment, absorb expansion
is manufactured from ultra high molecular weight hose, which and contraction, and isolate the vibration and shock that
offers tremendous chemical resistance; two King nipples could damage a tank. Their low spring rate protects stress-
(barbed); and mechanically attached stainless steel bands sensitive connections. Can be installed directly to the dome
securing the hose to the nipple. These connections are also a of the tank to overcome piping misalignment
great solution for transitioning through secondary containment.
• Made of pure 100% virgin PTFE resin
Connections: threaded • Ethylene’s exclusive Fluorforming™ process guarantees
Sizes: 1˝ to 4˝ multiple convolution walls of consistently uniform thickness
for any size.
• Features T-Band™ root and sidewall support and
protection from over-compression
• LimitLinks™ stainless steel cables protect from over-expansion.
Bolts: 316 stainless steel, titanium, C-276, Alloy 400
Gaskets: EPDM, Viton® and Viton® GF
Performance specifications:
»» Axial Compression ≥ 0.67˝
»» Axial Extension ≥ 0.67˝
»» Lateral Deflection ≥ 0.51 "
»» Angular Deflection ≥ 14°
»» Torsional Rotation ≥ 4°

54
Plumbing

PVC LIQUID LEVEL GAUGES REVERSE FLOAT LEVEL GAUGES

PVC Liquid Level Gauges are made from 3/4 inches clear PVC The Reverse Float Level Gauges offer a safe and reliable
tubing for a level indicator with up to three optional valves. means of determining the chemical level in your tank and
Please note that one pipe support should be used for every especially in the SAFE-Tank®. Available in PVC as standard.
6 feet of sidewall height to maintain alignment.
Advantages:
• No sidewall tank penetrations or chemical exposure
• All joints are dry fit for easier part replacement.
• Internal float now weighted to chemical specific gravity
• Polypropylene rope used for indicator
• Calibration tape can be added for tank capacity.
• Standard or freestanding pipe supports available

NOTE: These gauges are NOT intended to be used for

metering purposes.

55
Plumbing

COMBINATION INTERNAL & EXTERNAL FILL EXTERNAL DROP PIPES

FILL/DISCHARGE DROP PIPES Fill Line assemblies are available in PVC and CPVC with
Fill Line assemblies are available in PVC and CPVC with sizes sizes ranging from 1 to 3 inches and include a true union
ranging from 1 to 3 inches and include a true union for quick connection for easy assembly. When choosing a fitting, be
assembly. When choosing a fitting, be sure to consider if the sure to consider if the fill will be placed on the flat of the
fill will be placed on the flat of the dome; otherwise it will dome; otherwise it will require a self-leveling fitting.
require a self-leveling fitting.
Optional fittings: ball valve, quick adapter and cap (as
For dome fittings installed +/- 12 inches from the sidewall, shown). 45° elbow also available
standard pipe supports can be used. If the dome fitting is
more than 12 inches from the sidewall or if the fitting size is
greater than 4 inches, you must use a non-invasive internal
pipe support (our “promo tank”) to support the internal
piping. Customer installation of the internal drop pipe
assembly is required. Use a universal ball dome fitting for
easier installation. Pipe supports should be used one for
every 6 inches of sidewall height.
Optional fittings: ball valve, quick adapter and cap and 45°
elbow as shown

56
 FITTINGS AND ACCESSORIES

Plumbing

FILL/DISCHARGE INTERNAL DROP PIPES

Fill Line assemblies are available in PVC and CPVC with sizes
ranging from 1 to 3 inches and include a true union for quick
assembly. For dome fittings installed +/- 12 inches from the
sidewall, standard pipe supports can be used. If the dome
fitting is more than 12 inches from the sidewall or if the fitting
size is greater than 4 inches, you must use a non-invasive
internal pipe support (our “promo tank”) to support the
internal piping. Customer installation of the internal drop
pipe assembly is required. Use a universal ball dome fitting
for easier installation. Pipe supports should be used one for
every 6 feet of sidewall height.

57
Manways/Lids

BOLTED (8/16) MANWAY COVER FUME-TIGHT MANWAY COVER

These are the most popular covers we provide. They are Available in two sizes, 17 and 24 inches, with bolts of stainless
available in 24 inches. Please note that if you plan on visually steel, Alloy C-276 and titanium. Gasket materials available
inspecting the interior of the tank with some frequency, our include EPDM, Viton®, Viton® GF, XLPE or Buna. The 17-inch
SAFE-Surge™ manway cover may be a better alternative. model is often used on 19-inch manways as well.

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 FITTINGS AND ACCESSORIES

Manways/Lids

SAFE-Surge™ MANWAY COVER THREADED LID

Designed specifically for pneumatic-filled tanks. Releases at a Available in two sizes, 7 and 17 inches, coarse threaded.
6-inch water column to prevent over-pressurization, ensuring Gasket materials available include EPDM, Viton®, Viton® GF,
that the tank maintains proper ACFM at all times – even in the XLPE or Buna.
event of air surges that cannot be handled by primary venting.
Available in 19 and 24 inches. For detailed venting requirements,
please refer to the chart on page 63.

59
Accessories

LADDER ASSEMBLIES HEAT PADS AND INSULATION

Poly Processing’s tank ladders are available in heights from 6 Poly Processing’s tank heating systems are specifically
to 20 feet, depending on the tank application. To determine designed for temperature maintenance of polyethylene tanks.
height, ladder height equals height to top of manway rounded SilcoPad® tank heating systems maintain a desired product
to the nearest foot. If height of ladder exceeds the height of temperature, not to exceed 100 degrees F.
the manway, subtract 1 foot.
• Each heating system consists of tank heating pad(s) and a
• Ladders are available in mild steel as well as temperature controller. The quantity and type of SilcoPad®
FRP construction. tank heating pads required is determined by the size
• All ladders meet OSHA requirements. of the tank, the desired temperature maintenance and
environmental conditions.
• Ladders are not offered on all tanks due to safety
requirements. Approved systems are noted with the • Tanks are available with standard heating systems with a
appropriate ladder height in the distributor price list. Delta T of 30, 60 and 100 degrees F.
• Cages range from 7 to 8 feet and extend 4 feet above the • Tanks are typically supplied with the heating panels and
top rung of the ladder. a controller installed by Poly Processing. The only field
connection required is a power supply to the heating system.
Tanks with a center manway will have the additional cost of a
platform to reach the ladder. Please contact our customer support staff if HT & I is
required on a 14-foot-diameter tank.

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 FITTINGS AND ACCESSORIES

Accessories

OPTIC LEAK DETECTION SWITCH ULTRASONIC LEVEL SWITCH

This switch is an excellent choice for leak detection in This CSA-approved switch is intrinsically safe for use in
secondary containment tanks. The submersible sensor is hazardous-area locations. The Ultrasonic Level Switch is
mounted in the interstitial space of the tank. The internal broadly used in chemical liquids. Its 1A relay provides a
1A relay provides a reliable switch interface with indicators, reliable switch interface with remote devices such as a PLC,
PLCs, SCADAs and alarms. SCADA or alarm. This submersible sensor is universally
mounted through the wall inside the tank.
• Fail-safe leak sensor inverts wet to alert user
for maintenance. • CSA-approved intrinsically safe for use in
• Rugged PP or PFA Teflon® probe and cable rated NEMA 6 hazardous-area locations
• 1A relay selectable NO or NC via power supply • Rugged PP or PFA Teflon® probe and cable rated NEMA 6
wiring polarity • 1A relay selectable NO or NC via power supply
• Compatible with MicroPoint™ multi-channel indicator wiring polarity
• Compatible with MicroPoint™ multi-channel indicator

61
Restraints

SEISMIC RESTRAINTS WIND RESTRAINTS

Used to protect against seismic events, these clip systems Poly Processing offers cable systems to help stabilize tank
are available for location- and site-specific information areas. systems that are challenged by wind.
• PE wet stamps will be provided by request for a fee. • Standard systems are designed for wind speeds of 130 mph.
Contact Poly Processing’s customer support staff. • PE wet stamps will be provided by request for a fee.
• If the tank will be placed on a concrete pad, it is critical to
allow at least 8 inches of space between the tanks and the For all other design considerations, please contact our
edge of the pad to accommodate the proper anchoring of customer support team and ask to talk to our engineering
the clips. department. For Monroe, LA, call 866.590.6845;
for French Camp, CA, call 877.325.3142.
For all other design considerations, please contact our
customer support team and ask to talk to our engineering
department. For Monroe, LA, call 866.590.6845;
for French Camp, CA, call 877.325.3142.

62
 FITTINGS AND ACCESSORIES

Vents

MUSHROOM VENT U-VENT

For day tanks, an economical alternative to traditional U-vents Standard venting for outdoor tanks or for storing chemicals
or fittings. Made of polypropylene, in sizes 1 to 3 inches that create fumes. In PVC, in sizes 2 to 6 inches

VENTING REQUIREMENTS FOR POLYETHYLENE TANKS

Mechanical Pump Fill Pneumatic Fill

IF ≤ 1,000 gallons IF – Vent length ≤ 3' IF – Vent length > 3' and ≤ 30' IF – Scrubber application
Vent pipe size throughout scrubber
Vent size should equal system CANNOT be reduced!
AND – Vent screen mesh size ≥ ¼" AND – 3 or less 90° elbows with no
size of largest fill or
or no screen used other restrictions or reduction in pipe size Centerline of dispersion pipe
discharge fitting
not to be submersed > 6"
Perforated dispersion pipe must be
Emergency Pressure Relief Emergency Pressure Relief
IF > 1,000 gallons same diameter as vent or larger. Sum of
Cover Required Cover Required
perforations ≥ cross-sectional area of pipe
Tanker Inlet/Fitting Minimum Tanker Inlet/Fitting Minimum Tanker Inlet/Fitting Minimum
Vent size should Discharge Size Vent Size Discharge Size Vent Size Discharge Size Vent Size
exceed the largest fill or 2" 2" 4" 2" 2" 6" 2" 2" 6"
discharge fitting by 1" 3" 2" 6" 3" 2" 6" 3" 2" 8"
3" 3" 6" 3" 3" 8" 3" 3" 10"
»» See our website for Detailed Venting Guidelines.

63
Delivery:
Getting it to you at the right time, in the right condition.

At Poly Processing, we do our best to keep you informed and on track. Once you place
your order with us, you’ll have full access to daily order tracking, and we’ll give you 24
to 48 hours’ notice of tank delivery as well. We’ll gladly work with you to accommodate
special needs, coordinating with issues such as crane delivery.

Your order will ship directly from one of our three strategically located plant sites:
Louisiana, California or Virginia. We make all the arrangements for wide loads, escort-
permitted loads, flatbeds, vans, less-than-truckloads, and common carriers and hot
shots. We also ship via UPS and Fed Ex, when it makes sense to do so. We have the
ability to handle overseas shipments, too.

All of our tanks are washed, cleaned, protective-wrapped and final inspected before
shipment, and common carrier shipments are wrapped and palletized.

For extra security, fitting and thread protectors are added, and all loose parts are
boxed and labeled.

64
 Smarter Storage Means a Safer Environment
At Poly Processing, we know that chemical storage isn’t
just about business processes. It’s about protecting our
environment from harm. So our company constantly strives
to create smarter, safer ways to contain, maintain and
transfer chemicals. By bringing new and better ideas to
the industry, we’re safeguarding our planet. It is part of our
commitment to continually seek better solutions to chemical
storage challenges.

California Louisiana virginia

8055 S. Ash St. P. O. Box 4150 161 McGhee Rd.
French Camp, CA 95231 2201 Old Sterlington Rd. Winchester, VA 22603
Tel: 877.325.3142 Monroe, LA 71203 Tel: 866.590.6845
Tel: 866.590.6845

sales@polyprocessing.com

www.polyprocessing.com