I-Series

Compressors
 ®

A Tradition of Excellence
Corken, Inc. is recognized as a world leader in the manufacture of
small gas compressors (1-75 hp/.75-55.9 kw range) for hazardous,
volatile and toxic gases commonly found in the process gas industry.

Corken’s exceptional reputation in each of the industries it serves is

built upon decades of maintaining the highest quality and customer
service standards. This, combined with an absolute dedication to
product performance, makes Corken a company recognized
worldwide for its manufacturing leadership.

Located in Oklahoma City, Oklahoma, USA, Corken was founded in

1924 quickly gaining a reputation for excellence in customer
service. In the early 1940s, the company entered the liquid
petroleum gas (LPG) industry, which proved to be a turning point.
In the years to follow, Corken quickly gained market recognition for
its line of compressors and pumps for the propane, butane and
anhydrous ammonia industries.
For more than twenty years, Corken compressors have been used for
compressing a wide range of industrial and process gases, including
toxic, explosive and flammable gases. In 1991, Corken became part
of the IDEX Corporation, a fluid handling group consisting of
globally recognized market leaders. Through the years, a strong
commitment to customer service, product integrity, and dedication
to technological innovation has made Corken a recognized world
leader in the compressor and pump markets.

Today, Corken is a diversified company that serves a worldwide

customer base. Corken compressors, pumps, custom-engineered
compressor and pump packages and valves are used by a wide range
of companies throughout the world, including the Far East, Asia,
Africa, Europe, the Middle East, South America and North America.
Corken serves each of its customers through an extensive network of
170 distributors - each sharing the same commitment to customer
service that Corken has demonstrated for more than 70 years.

QUALITY SYSTEM
ISO 9001
CERTIFIED
 Why Select
Corken Compressors?
Reliable, efficient delivery of oil-free gas
The Industrial Series (I-Series) compressors
can handle your gas processing needs...
Corken’s line of oil-free compressors has been designed to transfer a wide range
of process gases, including: butadiene, hydrogen, helium, methyl chloride,
sulfur dioxide, chlorine, HCFCs, and more. Corken’s compressors are highly
reliable in applications as varied as compression of exotic gases for research,
process gas compression in the chemical industry, compression of corrosive
biogas from landfills and gas boosting in the petroleum industry.

Corken adapts to meet your needs...

Leakage control: For toxic, hazardous and explosive gases, Corken’s single-
and double-distance-piece (T-style) designs provide for precise control of
leakage. Corken compressors with the double-distance piece comply with
1990 U.S. Environmental Protection Agency Regulations 40 CFR CH
Section 264 .1053.*

Corrosion resistance: Corken offers a special coating which acts to prevent corrosion
and wear of critical parts within the compressor. The coating is a nickel alloy plating
which is impregnated with fluorocarbons.

Material options: Corken offers optional material for various gases as required.

Corken is consistently meeting the new

environmental/industry needs...
ANSI/DIN flange option: In reaction to increased environmental demands for leakage
control, Corken has added the option for ANSI/DIN flanges on its vertical compressor line.
These raised face flanges improve leak containment and structural integrity.

DIN Iron option: Corken offers a number of compressors with DIN Spec Iron for pressure
containing parts. These parts meet German DIN ductile iron specifications.

Servicing customer needs...

Customer service has always been the key to Corken’s success. Corken’s excellence in this area has been established through highly skilled
service engineers and training programs providing total customer support. Corken’s customer service group ensures that customers are well
versed in the use and application of Corken equipment, as well as maintenance, service and all safety related measures.
*When properly equipped
Vertical Industrial
Gas Compressors
Features & Benefits
Compressors matched to your needs...
Corken offers many types of compressors to meet the stringent requirements of today's markets. Corken provides oil-free, non-lubricated and
lubricated versions of its vertical compressor. Depending on the application, single- and two-stage, air-cooled or water-cooled compressors
are available in single- and double-acting designs.

No contamination of process gas stream...

Corken gas compressors are equipped with a single- or double-distance piece which High efficiency valves:
effectively controls oil carryover and product leakage by eliminating rod over travel and Corken valves offer quiet operation and high durability in
oil-free gas applications. Valve plates are available in
providing two or more sets of packing on each piston rod. Corken offers a double-distance- numerous metallic and non-metallic materials including
piece (T-style) option which consists of two distinct isolation chambers to provide stainless steel and PEEK material.
maximum leakage control. These chambers can be pressurized, purged or vented to control
gas leakage. This feature allows the compressor to supply oil-free gas whether it’s being
used as a simple gas booster or for vacuum service. The single- and two-stage compressors Self-Lubricating piston rings:
Corken provides a variety of state-of-the-art piston ring
are both capable of developing up to 23 in. Hg (157 mm Hg) vacuum. designs to provide the most cost effective operation of
compressors for non-lube service. Material options
More than just a compressor... include ALLOY 50 (a proprietary composition) and
different thermoplastic materials as required for the
Corken supplies custom engineered packages to meet the most demanding customer particular application.
specifications. Skid mounted units can be supplied with control panels, safety controls,
pulsation dampeners, receiver tanks, valving and other special accessories as required.
Corken also offers standard mountings designed specifically for liquefied gas transfer,
vapor recovery and gas booster applications.

Serviceability... Nitride-coated piston rods:

Impregnated nitride coating provides superior
corrosion resistance.
Corken compressors are designed to minimize the required maintenance and make such
maintenance extremely simple. Maintenance operations such as valve replacement may be
accomplished without disturbing the piping, while ring replacement may be accomplished
Cast iron crosshead:
simply by removing the head.
Durable cast iron crossheads provide superior resistance to
corrosion and galling.
Corken can handle process gases such as...
air carbon tetrachloride ethyl chloride isobutene neon CFC-12 HFC-23
ammonia carbonyl sulfide ethylene isobutylene nitric oxide CFC-13 HFC-134A
argon chlorine ethylene oxide krypton nitrous oxide CFC-113 HFC-152A
benzene chlorodifluoromethane helium methane n-octaine CFC-114 sulfur dioxide
biogas cyanogen hexafluoroethane methyl acetylene oxygen CFC-115 sulfur hexafluoride
butadiene cyclohexane n-heptane methyl bromide ozone CFC500 tetrafluoroethylene
n-butane cyclopropane n-hexane methyl chloride n-pentane CFC502 trichloroethane
1-butene deuterium hydrocarbon gas methyl fluoride phosgene CFC503 trimethylamine
bromotrifluo- dimethylamine hydrogen methyl mercaptan propane HCFC-22 vinyl bromide
romethane dimethyl ether hydrogen chloride monoethylamine propylene HCFC-141B vinyl fluoride
carbon dioxide 2,2-dimethylpropane hydrogen fluoride monomethylamine refrigerants: HCFC-142B vinyl chloride
carbon monoxide ethane isobutane natural gas CFC-11 HFC-14 xenon
 O-ring cylinder head gaskets:
Easy to install o-ring head gaskets seal
High efficiency valves: tighter than flat head gaskets.
Corken valves offer quiet operation and high durability in
oil-free gas applications. Valve plates are available in
numerous metallic and non-metallic materials including
stainless steel and PEEK material. Ductile iron construction:
All cast cylinders and heads
are ductile iron for maximum
thermal shock resistance.
Self-Lubricating piston rings:
Corken provides a variety of state-of-the-art piston ring
designs to provide the most cost effective operation of
compressors for non-lube service. Material options Positively locked piston:
include ALLOY 50 (a proprietary composition) and Simple piston design allows
different thermoplastic materials as required for the end clearance to be precisely
particular application. set to provide maximum
efficiency and long life.

Double distance piece:

Provides an extra layer of
protection to control leakage.
Nitride-coated piston rods:
Impregnated nitride coating provides superior
corrosion resistance.

Cast iron crosshead: Pressure lubricated crankcase with filter:

Durable cast iron crossheads provide superior resistance to Self-reversing oil pump ensures proper
corrosion and galling. lubrication regardless of direction of
rotation. Standard 10-micron filter ensures
long-lasting bearing life.
 Single- and
Two-Stage
Single-stage oil-free compressors...
Corken single-stage compressors are typically used in applications where the gas compression ratio is less than 5:1. Applications such as
liquefied gas transfer are generally better suited for a single-stage compressor, (which can take advantage of the relatively low differential
pressures and offer extremely efficient gas compression). Transport, rail car and marine unloading by vapor differential are examples of
such an operation.

O-ring cylinder head gaskets:

Easy to install o-ring head gaskets seal
Two-stage oil-free compressors...
tighter than flat head gaskets. Corken two-stage compressors are typically used in applications
where the gas compression ratio is greater than 5:1. The two-stage
compressors divide the compression process into two separate steps
Ductile iron construction: and allow the gas to be cooled after the first stage of compression,
All cast cylinders and heads which results in a lower f inal discharge temperature. These
are ductile iron for maximum compressors are commonly used in booster and vapor recovery
thermal shock resistance.
applications. Due to the need for higher differential pressures which
result in higher operating temperatures, Corken also offers the two-
Positively locked piston: stage compressor in a water-cooled design, where both the cylinder
Simple piston design allows and the head are cooled.
end clearance to be precisely

Sized for your capacity needs...

set to provide maximum
efficiency and long life.

Corken offers six different sizes of vertical, oil-free, single-stage

Double distance piece: compressors (Models D91-D691) and three different two-stage
Provides an extra layer of compressors (Models D191-D591). These compressors cover the
protection to control leakage.
full range of capacities from 4 to 60 cfm (6.8-102 m3/hr).

For even greater capacity...

Corken model D891 is a double-acting single-stage gas compressor
which is capable of supplying between 50 and 100 cfm (171 m3/hr),
Pressure lubricated crankcase with filter:
Self-reversing oil pump ensures proper while the D791 is a double-acting two-stage compressor. The D791
lubrication regardless of direction of also offers the advantage of an adjustable clearance head which may
rotation. Standard 10-micron filter ensures be used to balance the pressure load between stages. Both of these
long-lasting bearing life.
units are offered in either lubricated or non-lubricated versions.
Although these compressors are not classif ied as oil free, the
potential for oil carry-over is minimized.

Solutions beyond products...

®
Vertical Compressor
Options
Corken offers many CYLINDER

options and accessories. N2

Double-Distance Piece (T-style): Due to new regulations and the growing
number of gases that pose possible safety and environmental hazards, Corken
offers the double-distance-piece (T-style) option. For improved leakage control, N2
this option has three separate sets of packing per piston rod which effectively form
two distinct distance pieces or barriers to external leakage. Each distance piece
has its own line connections and can be separately pressurized, purged or vented
to provide a wide range of application flexibility. This flexibility allows a choice
of the best method of containment, based on the requirements of your specific
application. For added convenience, purge kit options are available that include all
the accessories needed to control the purging or pressurization of each chamber. Double-distance piece with purge kit for pressurization and purging of distance piece.

Piston Rod Material and Coating Options: Several rod material

options are available for special applications. Corrosion resistant
coatings are also available to protect internal compressor parts.

K-ring Spacers: These

spacers, when used in
conjunction with our v-ring
packing, offer improved
leakage control and extend
service life in applications
where operating temperatures
exceed 250 °F (121 °C).

Packing cartridge, crosshead, piston rod, k-ring spacers and v-ring packing.

Liquid Traps: Corken offers automatic electric and mechanical traps. The automatic electric design
incorporates one or two liquid level switches depending on specific requirements. Custom traps are
available on package units. Traps constructed per ASME code are optional. Level
(Switch 1)
Safety and Control Switches: Corken can supply safety shutdown switches for pressure,
Level
temperature, liquid level and vibration to meet international and U.S. specifications. These switches, (Switch 2)
in conjunction with a control panel, can effectively automate the operation of the compressor.

Intercoolers/Aftercoolers: Corken offers water-cooled and air-cooled intercoolers/aftercoolers in a

variety of materials. Custom designed heat exchangers are available for applications which require
extra cooling or special material considerations.
Drain Line

Flanged, ASME code liquid trap with liquid-level switches,

manual drain and stainless steel demister pad.
 Vertical Compressor
Options
MC1002 Coating: This coating significantly increases component life in
corrosive gas service. It will not peel or chip and offers increased
corrosion, moisture, abrasion and chemical resistance. Lab tests indicate
that piston rings can last up to three times longer when used with an
MC1002-coated cylinder.

Suction Valve Unloaders: Unloaders may be used to provide loadless

starting and/or constant speed unloading. Loadless starting is required in
applications which have a high initial differential pressure. Constant
speed unloading allows for loading and unloading the compressor while it
is running rather than stopping and starting the compressor in order to
control capacity.

ALLOY 50 piston rings and rod packing: ALLOY 50 (a proprietary composition)

is recommended when compressing a very dry gas with a high ‘k’ value. These gases
tend to have high operating temperatures and offer minimal lubricating qualities. ALLOY
50 material extends the service life of the piston rings and rod packing and minimizes leakage.

Optional Materials: Corken has several material

options for a variety of compressor parts. Piston rings are available in
ALLOY 50, PEEK and other filled Teflon®‚ blends. Valve plates are
available in stainless steel and PEEK materials. Optional materials for
piston rods are also available. O-rings are offered in Teflon®, Viton®,
Buna-N or Neoprene®. Consult the factory for optional materials that can
be specified on special applications.

Options to match your application...

Corken offers numerous options that adapt to your compression needs.
The following table lists some of the more common gases and some of
ALLOY 50 piston rings and rod packing.
the hazards associated with these gases. As noted, certain gases or gas
mixtures are corrosive, flammable, explosive or toxic. Many of these
factors will affect the selection of the compressor and accompanying options. Some of the more common options are matched up with the
assorted gases listed on the following table. However, this not a comprehensive list of required options. Based on years of experience, Corken’s
sales engineers will recommend the most suitable materials of construction and select the appropriate options based on your application and
product. These engineers carefully review your specifications and recommend the components necessary for the optimal performance of the
selected compressor. As part of Corken’s continuous improvement program, new state-of-the-art materials are continually being evaluated to
enhance the compressor life in gas applications.

Solutions beyond products...

®
Matching Options
With Gases
T MC Optional
1002 ALLOY
TYPE OF GAS FORMULA STYLE
Coating 50 Materials COMMENTS
COPPER, ALUMINUM AND ZINC PROHIBITED. TEFLON
AMINES O-RINGS AND IRON/LEAD TRIM RECOMMENDED.

Explosive AMMONIA NH3 COPPER AND COPPER ALLOYS PROHIBITED.

LEAK TIGHTNESS IMPORTANT. COMPRESSION RATIOS
ARGON AR ARE LIMITED DUE TO HIGH SPECIFIC HEAT RATIO.

HIGHLY CORROSIVE WHEN WET. RECOMMENDATIONS

BIOGAS WILL VARY DEPENDING ON NATURE OF MIXTURE.
COPPER AND COPPER ALLOYS PROHIBITED.
BUTADIENE C4H6 LEAK TIGHTNESS IS IMPORTANT.

BUTANE,BUTENE C 4 H1 0 / C 4 H 8 EASILY LIQUIFIED

Flammable
CFC,HFC ,HCFC LEAK TIGHTNESS IMPORTANT.

ACIDIC WHEN WET. COMPRESSION RATIOS ARE

CARBON DIOXIDE CO2 LIMITED DUE TO HIGH SPECIFIC HEAT RATIO.
NO HIGH NICKEL ALLOYS OR PURE NICKEL.
CARBON MONOXIDE CO COMPRESSION RATIOS ARE LIMITED DUE TO HIGH
SPECIFIC HEAT RATIO.
HIGHLY CORROSIVE WHEN WET. CHROME
Corrosive CHLORINE CI2 OXIDE PISTON ROD COATING AND
TEFLON O-RINGS REQUIRED.
COPPER, TIN, ZINC PROHIBITED. TEFLON
DIMETHYLAMINE (CH3)2NH O-RINGS REQUIRED.

DIMETHYL ETHER (CH 3)2 O OPTIONAL O-RING MATERIAL AVAILABLE.

ETHANE C2H6
ETHYLENE C2H4 IRON/LEAD TRIM AND TEFLON O-RINGS RECOMMENDED.
Toxic COPPER, SILVER, MAGNESIUM PROHIBITED.
ETHYLENE OXIDE C2H40 TEFLON O-RINGS REQUIRED.
LEAK TIGHTNESS IMPORTANT. COMPRESSION RATIOS
HELIUM He ARE LIMITED DUE TO HIGH SPECIFIC HEAT RATIO.
T HYDROCARBON GASES HC UNUSUAL COMPRESSIBILITY FACTORS, CHANCE OF
STYLE LIQUEFACTION.
LEAK TIGHTNESS VERY IMPORTANT. COMPRESSION
HYDROGEN H2 RATIOS ARE LIMITED DUE TO HIGH SPECIFIC HEAT
Double RATIO.
Distance Piece CHROME OXIDE PISTON ROD COATING
RECOMMENDED. IRON/LEAD TRIM AND TEFLON
HYDROGEN CHLORIDE HCI O-RINGS REQUIRED. COMPRESSION RATIOS ARE
LIMITED DUE TO HIGH SPECIFIC HEAT RATIO.
ISOBUTANE CH(CH3)3
MC1002
Coating ISOBUTYLENE ( C H3 )2C : C H 2 IRON/LEAD TRIM AND TEFLON O-RINGS REQUIRED.

METHANE CH4
Corrosion ZINC, ALUMINUM, MAGNESIUM AND THEIR ALLOYS
Resistant METHYL CHLORIDE CH 3CI PROHIBITED. CHROME OXIDE PISTON ROD COATING
Coating RECOMMENDED. TEFLON O-RINGS RECOMMENDED.
COPPER, LEAD, ZINC PROHIBITED. TEFLON
METHYL MERCAPTAN CH3SH O-RINGS REQUIRED.
NATURAL GAS REVIEW COMPOSITION OF MIXTURE.
ALLOY USUALLY VERY DRY WITH NO LUBRICATING
50 NITROGEN N2 QUALITIES. COMPRESSION RATIOS ARE LIMITED
DUE TO HIGH SPECIFIC HEAT RATIO.
AVOID ANY HYDROCARBONS. TRICHLOROETHANE
Piston Rings NITROUS OXIDE N20 CLEANING OF PARTS CONTACTING THE GAS.
& Rod Packing
Material AVOID ANY HYDROCARBONS. TRICHLOROETHANE
CLEANING OF PARTS CONTACTING THE GAS.
OXYGEN O2 COMPRESSION RATIOS ARE LIMITED DUE TO HIGH
SPECIFIC HEAT RATIO.
LEAK TIGHTNESS IMPORTANT. IRON/LEAD
PROPYLENE C3H6 TRIM AND TEFLON O-RINGS RECOMMENDED.
Optional
Materials
SULFUR DIOXIDE SO2 CORROSIVE WHEN WET. LEAK TIGHTNESS IMPORTANT.

CHROME OXIDE PISTON ROD COATING RECOMMENDED.

Optional VINYL CHLORIDE CH2CHCI IRON/LEAD TRIM AND TEFLON RECOMMENDED.
Materials
Consult factory for selection of appropriate options.
 Vertical Industrial
Gas Compressors
Specifications and Performance
SPECIFICATIONS SINGLE-STAGE COMPRESSORS TWO-STAGE COMPRESSORS
Model Family D91 D291 D491 D491-3 D691 D691-4 D891(a) FD151 D191 D391 FD591 D791(a)

Bore of Cylinder One

Inches (MM) Cylinder
First Stage Only 3.0 (76.2) 4.0 (101.6) 3.0 (76.2) 4.5 (114.3) 4.0 (101.6) 4.5 (1114.3) 2.5 (6.35 3.0 (76.2) 4.5 (114.3) 6.0 (152.4) 6.0 (152.4)
Second Stage 3.0 (76.2) 1.25 (3.17) 1.75 (44.45) 2.5 (63.50) 3.25 (82.55) 3.25 (82.55)
Stroke
2.5 (63.5) 2.5 (63.5) 3.0 (76.2) 3.0 (76.2) 4.0 (101.6) 4.0 (101.6) 4.0 (101.6) 2.5 (79) 2.5 (63.50) 3.0 (76.20) 4.0 (101.60) 4.40(101.60)
Inches (MM)
Piston Displacement
CFM (M3/HR)
Minimum @ 400 RPM 4.0 (6.8) 8.0 (13.6) 17.2 (29.2) 9.8 (16.7) 29.2 (49.6) 23.2 (39.4) 56.6 (96.2) 2.8 (79) 4.0 (6.8) 11.4 (18.8) 18.2 (30.9) 51.2 (87.0)
Maximum @ 825 RPM 8.3 (14.1) 16.5 (25.4) 35.5 (60.3) 20.2 (34.3) 60.2 (102.3) 48.0 (81.6) 113.2 (192.4) 5.8 (164) 8.25 (14) 22.8 (38.7) 37.5 (63.7) 105.7 (179.6)
Maximum Working
350 (24.1) 350 (24.1) 350 (24.1) 615 (42.4) 350 (24.1) 365 (25.2) 465 (32.1) 1200 (83.8) 615 (42.4) 625 (43.1) 615 (42.4) 615 (42.4)
Pressure PSIA (Bar)
Maximum Brake
7.5 (5.6) 15 (11) 15 (11) 15 (11) 35 (26.1) 35 (26.1) 45 (34) 15 (11) 15 (11) 15 (11) 35 (26.1) 45 (34)
Horsepower (KW.)
Maximum Rod Load 3600 3600 4000 4000 5500 7000 7000 3600 3600 4000 7000 7000
LBS. (KG.) (1633) (1633) (1814) (1814) (2495) (3175) (3175) (1632.96) (1633) (1814) (3175) (3175)
Maximum Outlet
350 (177) 350 (177) 350 (177) 350 (177) 350 (177) 350 (177) 350 (177) 350 (177) 350 (177) 350 (177) 350 (177) 350 (177)
Temperature °F (°C)
Bare Unit Weight with
150 (68.0) 210 (95.2) 390 (176.9) 390 (176.9) 745 (337.9) 745 (337.9) 900 (408.2) 215 (97.5) 215 (97.5) 350 (158.8) 790 (358.8) 930 (421.9)
Flywheel LBS. (KG.)
Double Distance Piece
Yes Yes Yes Yes Yes Yes –– Yes Yes Yes Yes ––
T-Style Option
ANSI/DIN Flange Option Yes Yes Yes Yes Yes Yes –– Yes Yes Yes Yes ––
Water Cooled Option –– –– –– –– Yes Yes –– –– –– Yes Yes ––

(a) Double-acting compressor

Note: Specific application conditions may limit a compressor’s operating performance to less than the values shown on this page. Contact a Corken Distributor or the Factory for verification. Specifications may be changed without liability or
advance notice.

10.0

9.0

8.0
COMPRESSION RATIO (P2/P1 ABSOLUTE)

D191 D391 D591 D791

7.0

6.0

5.0

4.0

3.0 D91 D291 D491 D691-4 D691 D891

D49

2.0
1-3

1.5

0 5 10 15 20 25 30 35 40 45 50 70 90 110
ACTUAL FT3/MIN
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 110 135 160 185
Performance chart is for reference only. Compressors are limited by A C T U A L M3 / H R
operating temperatures, rod loads and required horsepower. Consult
factory for actual capacity based on your specific conditions. SUCTION VOLUME
Horizontal Industrial
Compressors
Features and Benefits
Self-lubricating piston and rider rings:
Made of Teflon® to ensure extended
For higher pressures service life.

and capacity...
Corken’s horizontal 1 through 4 stage compressor can
build up to 4500 psig (310.3 bar) and supply over 375
scfm (637.5 m3/hr). This balanced opposed gas
compressor offers smooth, quiet operation and the
versatility of multi-stage compression.
The compressor is offered with various sizes of cylinders.
Corken currently offers 8" (203.2mm), 6" (152.4mm), 4"
(101.6mm), 3-1/4" (82.6mm), and 2-3/4" (69.9mm) cylinders. These
cylinders may be arranged in various combinations of 1-, 2-, 3-, or 4-
stages. The horizontal compressors are offered in lubricated and non-
lubricated designs. Although these compressors are not classified as oil
free, the potential for oil carry-over is minimized.

Now even lower leakage...

In response to increasingly stringent environmental requirements to
Crankshaft journal, connecting rod
reduce emissions of volatile organic compounds and other hazardous bearings, wrist pins and crossheads:
gases, Corken offers a purge-pak-piston-rod-sealing system for the Pressure lubricated by an oil pump
HG600-series horizontal compressors. with oil filtered by a 10- micron spin
on filter.
While precise leakage rates cannot be guaranteed due to the many
complex factors which affect leakage, the purge pak and rod sealing (Optional) Thermostatically-
controlled crankcase heater:
system substantially reduces leakage compared to conventional Assures proper oil viscosity
segmented piston rod seal configurations. Tests have shown that in many throughout all weather conditions.
cases, leakage can be reduced below 1 scfh (0.027 nm3/hr).
Heavy-duty crankcase:
A rugged, internally ribbed
Water-cooled cylinders... design, incorporating heavy-
duty main bearings and four-bolt
To increase the versatility of the horizontal compressor in the process connecting rods.
market, Corken offers water-cooled cylinders in the 8" (203.2mm), 6"
(152.4mm), 4" (101.6mm) and 3-1/4" (82.6mm) bore sizes. These
cylinders greatly reduce the operating temperature, allowing the
horizontal compressor to be used in applications with diatomic gases
such as helium or nitrogen, which have a high ‘k’ value. (Optional) Force-feed lubricator:
Assures proper lubrication of cylinders
and packing when required.
 Placement of valves:
Make inspection and
Self-lubricating piston and rider rings: maintenance simple.
Made of Teflon® to ensure extended
service life.

Crankshaft journal, connecting rod

bearings, wrist pins and crossheads:
Pressure lubricated by an oil pump
with oil filtered by a 10- micron spin
on filter.

(Optional) Thermostatically-
controlled crankcase heater:
Assures proper oil viscosity
throughout all weather conditions. Heavy-duty crankcase:
A rugged, internally ribbed
design, incorporating heavy-
duty main bearings and four-bolt
connecting rods.

(Optional) Force-feed lubricator: Heavy-duty cylinder design:

Assures proper lubrication of cylinders Each cylinder is hydrostatically tested to
and packing when required. 1 1/2 times the rated working pressure
for maximum strength. MC1002 coating
is available on all cylinders, providing
longer piston ring life.
 Available
Options
Blank valve option...
In addition to the flexibility of reconfiguring the stages and number of
cylinders, the capacity may be controlled through the blank valve
Placement of valves: option, which changes the cylinder to single acting.
Make inspection and
maintenance simple.
Variable clearance heads...
This option is available on all cylinder sizes and allows for pressure and
capacity adjustment while the compressor is operating.

External crankcase oil cooler...

Corken compressors are equipped with a force-feed-lubrication system
and external oil filter. An optional external oil cooler is available for
applications requiring higher horsepower to assure consistent oil
temperature and achieve optimal service life.

Material options...
The horizontal compressor line offers many
optional materials for parts such as gaskets,
piston rings, o-rings, pistons and more. This
allows the compressor to be used with a
variety of gases. The MC1002 corrosion-
resistant coating is also an option.

Engineered packages...
Custom engineered skid mounted units can be
supplied with control panels, wiring, pulsation
dampeners, receiver tanks and other special
accessories as required.

Heavy-duty cylinder design:

Each cylinder is hydrostatically tested to
1 1/2 times the rated working pressure
for maximum strength. MC1002 coating
is available on all cylinders, providing Solutions beyond products...
longer piston ring life.

®
HG600 Horizontal
Compressors
Specifications and Performance
TWO-STAGE MODEL HG602AB HG602AD HG602BD HG602BE HG602BF HG602DE HG602DF HG602EF THREE & FOUR STAGE MODELS
SIZE 8x6 8x4 6x4 6 x 3.25 6 x 2.75 4 x 3.25 4 x 2.75 3.25 x 2.75

Displacement CFM (M3/HR) Due to a variety of

100 RPM* 17.2 (29.3) 17.2 (29.3) 9.6 (16.3) 9.6 (16.3) 9.6 (16.3) 4.72 (7.1) 4.72 (7.1) 4.72 (7.1) configurations, consult factory
1200 RPM 207.0 (351.7) 207.0 (351.7) 115.0 (195.4) 115.0 (195.4) 115.0 (195.4) 49.8 (84.6) 49.8 (84.6) 49.8 (84.6) for the capacity of three and
four stage compressors.
Approximate Weight
948.0 (430.0) 933.0 (423.2) 853.0 (386.9) 838.0 (380.1) 838.0 (380.1) 823.0 (373.3) 823.0 (373.3) 823.0 (373.3)
LBS. (KG.)
Water Cooled Option WG602AB WG602AD WG602BD WG602BE WG602DE

SINGLE-STAGE MODEL HG601AX HG601BX HG601DX HG601EX HG601FX HG601AA HG601BB HG601DD HG601EE HG601FF
SIZE 8 6 4 3.25 2.75 8x8 6x6 4x4 3.25 x 3.25 2.75 x 2.75
Displacement CFM (M3/HR)
100 RPM* 17.2 (29.3) 9.6 (16.3) 4.2 (7.1) 2.7 (4.5) 1.9 (3.1) 34.5 (58.6) 19.2 (32.7) 8.3 (14.1) 5.3 (9.1) 3.7 (6.3)
1200 RPM 207.0 (351.7) 115.0 (195.4) 49.8 (84.6) 32.2 (54.5) 22.2 (37.7) 414.0 (703.5) 231.0 (392.5) 99.6 (169.2) 64.0 (108.7) 44.4 (75.4)
Approximate Weight
933.0 (423.2) 868.0 (393.7) 823.0 (373.3) 803.0 (364.2) 803.0 (364.2) 868.0 (393.7) 828.0 (375.6) 803.0 (364.2) 803.0 (364.2)
LBS. (KG.)
Water Cooled Option WG601AX WG601BX WG601DX WG601EX WG601AA WG601BB WG601DD WG601EE

CYLINDER DATA BORE In. (mm) 8.0 (203.2) 6.0 (152.4) 4.0 (101.6) 3.25 (82.6) 2.75 (69.9) FRAME DATA
Maximum Working Pressure Stroke Inches (MM) 3.0 (76.2)
315.0 (21.7) 365.0 (25.2) 1015.0 (70.0) 1215.0 (83.8) 1665.0 (114.8)
PSIA (BAR G) Maximum Gas Rod Load LBS. (KG.) 7000.0 (3175.2)
Maximum Motor HP (KW.) 75 (55.9)
Head End Variance Clearance
Maximum % (HE) 38.7 35.8 36 29.7 37 Maximum Discharge Temp. °F (°C) 350.0 (176.7)
% per Turn (HE) 2.1 1.9 1.7 1.5 1.7 *Speed Range (All Models) 400-1200 RPM

Displacement CFM (M3/HR)

Crank End per 100 RPM 8.5 (14.4) 4.7 (8.0) 2.0 (3.4) 1.2 (2.1) 0.8 (1.4)
Head End 100 RPM 8.7 (14.8) 1.9 (8.3) 2.2 (3.7) 1.4 (2.4) 1.0 (1.7)
Total per 100 RPM 17.2 (29.3) 9.6 (16.3) 4.2 (7.1) 2.7 (4.6) 1.9 (3.2)
Approximate Maximum
145.0 (10.0) 265.0 (18.3) 590.0 (40.7) 900.0 (62.1) 1200.0 (82.8)
Differential Pressure PSI (BAR)

(a) Double-acting compressor

Note: Specific application conditions may limit a compressor’s operating performance to less than the values shown on this page. Contact a Corken Distributor or the Factory for verification. Specifications may be changed without liability or
advance notice.

9.0
CYLINDER SIZE CODE
8.0 A = 8.00 In.
B = 6.00 In.
D = 4.00 In.
COMPRESSION RATIO (P2/P1 ABSOLUTE)

EF DF BF BE BD AD AB
7.0 E = 3.25 In.
F = 2.75 In.
DE

6.0 X = Single Cylinder Models

i.e. AB = 8” x 6” Cylinder Sizes
5.0

4.0

3.0

2.0 FX EX FF DX EE DD BX AX BB AA

1.5

0 10 20 30 40 50 60 70 80 90 100 110 130 150 170 190 210 410

ACTUAL FT3/MIN
0 20 40 60 80 100 120 140 160 180 210 240 270 300 330 360 700
ACTUAL M3/HR
Performance chart is for reference only. Compressors are limited by
operating temperatures, rod loads and required horsepower. Consult SUCTION VOLUME
factory for actual capacity based on your specific conditions.
 Services Tailored
To Your Needs
Corken is there when
you need them.
The key to Corken’s success is continued dedication to providing
customers with exceptional product support. Corken offers many
special services to ensure total customer satisfaction.

Training...
Corken personnel can be present for initial start-ups, providing
assistance and on-site training to plant personnel.
Corken’s highly skilled service engineers can also assist in defining
preventive maintenance programs based on your specific application.

Testing...
All Corken products are thoroughly tested to ensure compressors
meet performance specifications. Each compressor is subject to leak
and performance tests, plus visual inspection. Certification of these
tests may be provided for each unit. Other services Corken offers
include hydrostatic testing, nitrogen pressurization and purge, plus
many others.

Engineering information...
At Corken, an integral compressor-sizing-computer program--
(developed specifically for our compressor lines)-- assists Corken
sales engineers in selecting the right compressor for your application.
This program also provides engineering data such as volumetric
efficiency, capacities, rod reversal, temperatures at each stage of
compression, maximum rod load and valve velocity. Graphs of items
such as the unbalanced forces and bearing loads throughout the
rotation of the flywheel are also available. Certified drawings for the
compressors and packages are provided through our state-of-the-art
CADD system.
Corken sales engineers are always available for technical assistance
throughout the life of your Corken compressor. The ultimate goal at
Corken is total customer satisfaction, and Corken provides the
services to back it up.
Industrial Gas
Compressor Packages
Compressor: 491 & 691 paired on separate skids
Corken Compressors are used Application: Recover vapors from storage tanks
Product: Natural Gas

in many applications... Inlet Pressure: 0 psig (0 bar g)

Discharge Pressure: 200 psig (13.8 bar g)
Capacity: 60 - 170 mscfd (70.8-200.6 nm3/hr)
• Vapor Recovery
• Liquid Transfer
• Pressure Boosting
• Gas Blanketing
• Evacuation
• Gas Gathering
• Instrumentation
• Tank Car Unloading
• PSA Gas Generation
• Refrigerant Reclaiming

Compressor: D891
Compressor: HG601BB
Application: Liquid transfer
Application: Multiple railcar unloading
Product: Vinyl chloride
Product: Propylene
Differential Pressure: 30 psig (2.1 bar g)
Pressure Differential: 35 psig (2.4 bar g)
Capacity: 400 gpm (1,514 lit/m)
Capacity: Approximately 1000 gpm (3,785 lit/m)
 Engineered to
Customer Specifications
Serving Many Industries...
• Petrochemical
• Pulp & Paper
• Energy
• Transportation
• Marine
• Defense / Aerospace
• Electronics
• Aerosol
• Food Processing
• Health Care

Compressor: T491
Application: Railcar unloading
Product: Butadiene
Pressure Differential: 20 psig (1.4 bar g)
Capacity: Approximately 125 gpm (473 lit/m)
 Corken, Inc. • A Unit of IDEX Corporation

P.O. Box 12338 Oklahoma City, OK 73157 U.S.A.

(405) 946-5576 FAX (405) 948-7343

Visit our website at http://www.corken.com

e-mail us at corken@corken.com
PRINTED IN THE USA
I100A SEPTEMBER 1999