Condensate Recovery

Equipment
 Pumping Traps

Inside Advantages Notice the difference in spring design

Mechanical condensate pumps operate with a spring-assisted from the industry standard spring set
float mechanism, which means the springs themselves are a (left) and the Armstrong Inconel spring
major wear point. Armstrong pumping traps have large- set.
diameter Inconel X-750 springs, which provide superior
corrosion resistance and longer service life than those in
competitive models. For other inside advantages, see below.

Non-electric and no Externally replaceable

cavitation valve and seat assembly
Utilizes inexpensive steam, air Maintenance is a “snap” with
or gas for operation and has hardened stainless steel
no seals, motors, impellers or valves that can be cleaned or
electric components, which replaced without cap removal.
Condensate Recovery

frequently fail due to cavitation.

Equipment

Explosion proof
Intrinsically safe due to all-
stainless steel construction
of mechanism.

Wear and corrosion

resistance
Mechanism frame
assembly is constructed
of rugged investment- Long life and
cast stainless steel dependable service
components. Simple float/spring
operation and rugged all-
stainless steel construction
allow for long, trouble-free
service life.
Stress chloride
corrosion resistance
Inconel X-750 springs
have higher resistance Compact, low-profile design
to the stress that causes Low-profile design allows for
lower-grade stainless maximum pump capacity with
steel springs to fail. minimal fill head and floor
space requirements. PT-300
Series horizontal tank design
provides the highest capacity
with the lowest profile on the
market.
Corrosion resistance
Entire float mechanism is
stainless steel. Float is Heliarc
welded to avoid the introduction
of dissimilar metals, which
could lead to galvanic corrosion
and float failure.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-184
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Effective Condensate Management = Energy Savings

The most basic part of energy management is utilizing all These savings can be calculated using the attached savings
valuable kJ within the steam system. Depending on the form. Returning condensate saves money, energy and the
pressure, condensate exiting a trap contains approximately environment. Pour money and energy savings back into your
20% of the heat energy transferred at the boiler in the form of plant – not down the drain.
sensible heat. Effective recovery of condensate reduces four
tangible costs of producing steam:
• Fuel/energy costs and CO2 emissions associated with
producing steam
• Boiler water make-up and sewage treatment
• Boiler water chemical treatment
• Boiler blow-down rate

Condensate Recovery Savings Analysis Location _______________________ Building _______________________

Energy costs will vary from plant to plant and regions of the world. Values shown are conservative. Complete this form using your

Condensate Recovery
facilities’ numbers to determine annual savings in your plant by returning condensate. If some costs are not known, use the figures
below for conservative estimates.

Equipment
A) Condensate Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = 2 m³/h F) Annual Water Savings . . . . . . . . . . . . . . . . . . . . . . .= 10 000 €
(A)2 x (B)5 000 x (C)1,0
B) Annual Hours of Operation . . . . . . . . . . . . . . . . . .= 5 000 h/year

C) Total Water and Sewage Cost . . . . . . . . . . . . . . . = 1,0 € per m³ G) Savings for Preheating Make-Up Water . . .= 17 606 €
c1) Untreated water and sewage . . . . . . . . . . . . = 0,5 € per m³ (A)2 x (B)5 000 x (D)314 x (E)15
c2) Water treatment chemicals . . . . . . . . . . . . . . = 0,5 € per m³ (e2)2 738 - ((d2)15 x 4,186)

D) Make-Up Water Preheating Requirements . = 314 kJ/kg H) Cost of Steam to Operate†

d1) Condensate Return Temperature . . . . . . . = 90°C Armstrong Pump Trap . . . . . . . . . . . . . . . . . . . . . . .= 450 €
d2) Make-Up Water Temperature . . . . . . . . . . . = 15°C 3 kg steam/m³ x (A)2 x (B)5 000 x (E)15
1 000
E) Steam Cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = 15 € per ton
e1) Steam Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . = 3 bar I) Total Dollars Saved Annually (F + G - H) . = 27 156 €
e2) Enthalpy at 3 bar . . . . . . . . . . . . . . . . . . . . . . . . .= 2 738 kJ/kg
J) Payback Period in Years . . . . . . . . . . . . . . . . . . . .= 67 Days
**(cost of equipment/installation)5 000 €
(I)27 156

** Estimated equipment and installation cost

† Cost to operate in example assumes an “open” vented system. If pump
trap is used in “closed loop” application, energy of motive steam is
completely used in the system.

Pumping Trap Operation

Steam/Air In Steam/Air Out Steam/Air In Steam/Air Out Steam/Air In Steam/Air Out Steam/Air In Steam/Air Out
– Closed – Open – Open – Closed – Closed – Open – Closed – Open

Closed Closed Open

Open Check Valve Check Valve Check Valve
Check Valve

Closed Open Closed Closed

Check Valve Check Valve Check Valve Check Valve

Filling Begin Pumping End Pumping Repeat Filling

1. During filling, the steam or 2. Float rises with level of 3. Float is lowered as level of 4. Steam or air inlet and trap
air inlet and check valve on condensate until it passes trip condensate falls until snap outlet are again closed while
pumping trap outlet are closed. point, and then snap action action again reverses vent and condensate inlet are
The vent and check valve on reverses the positions shown positions. open. Cycle begins anew.
the inlet are open. in step one.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
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www.armstrong.be • marketing@armstrong.be
 Condensate Recovery Equipment ID Charts

Table CRE-186-1. Armstrong Condensate Recovery Equipment

Max. Max. Capacity
Connection Allow. TMA Body Mechanism Oper. Range Connection Size Located
Illustration Type Model
Type Press. °C Material Material Press. (condensate) on Page
barg barg kg/h 1" 1 1/2" 2" 3" x 2"
Model
ASTM A48 Stainless
PT-104 PN40
10 232 Class 30 Steel Inconel PT-104 6 900  CRE-196
Pumping Flanged
Cast Iron X-750 Spring
Trap
Series Fabricated
EPT-200 Stainless EPT-204 1 716 
PN40 Steel
Pumping 10 343 Steel Inconel 9 CRE-190
Flanged P265GH /
Trap X-750 Spring EPT-206 2 620 
P275H
Series EPT-404 2 520 
EPT-400 Fabricated
Pumping Steel Stainless EPT-406 3 705 
PN40
10 343 P265GH / Steel Inconel 9 CRE-192
Condensate Recovery

Trap Flanged
P275H AD- X-750 Spring EPT-408 5 000 
Merkblätter

Equipment

EPT-412 7 310
Series Fabricated
PT-300 Steel 10 bar Stainless PT-308 9 040 
PN40
Pumping 10 343 ASME Sec. Steel Inconel 9 CRE-194
Flanged
Trap VIII “U” X-750 Spring PT-312 6 840 
Stamped
Model Fabricated
Stainless
PT-516 Steel 10 bar
150# ANSI Steel with
Pumping 10 277 ASME Sec. PT-516 10 35 920 4" x 4" CRE-198
Flanged Stainless
Trap VIII Design
Steel Springs
“U” Stamped
Series 200 SEPT-
Fabricated
and 400 Stainless 206-OS 2 620  CRE-202
Open PN40 Steel
10 232 Steel Inconel 9
Flanged P265GH /
System X-750 Spring SEPT- 7 310  CRE-206
Packages P275H
412-OS
Series 200 SEPT-
Fabricated
and 400 Stainless 206-CS 2 620  CRE-204
Closed PN40 Steel
10 232 Steel Inconel 9
Flanged P265GH /
System X-750 Spring SEPT- 7 310  CRE-208
Packages P275H
412-CS
Series EAFT-6 900 Inlet: 50 - Vent: 65
EAFT Fabricated
Flash Tanks Steel EAFT-8 2 270 Inlet: 80 - Vent: 100
PN40
10 260 P265GH / 10 CRE-210
Flanged EAFT-12 4 540 Inlet: 100 - Vent: 150
P275H AD-
Merkblätter
EAFT-16 9 070 Inlet: 150 - Vent: 150

Table CRE-186-2. Stainless Steel Sump Ejector

Max. Maximum
Capacity
Connection Allow. TMA Body Mechanism Operating Steam Located
Illustration Type Model Range Discharge
Type Press. °C Material Material Pressure Inlet on Page
m3/h
barg barg
Stainless
Steel ASTM Stainless Steel
67 Sump
Sump Screwed 12 A351 Inconel 12 3 3/4" MNPT 1/2" NPT CRE-212
Water Ejector
Ejector CF8M X-750 Spring

Table CRE-186-3. Posi-Pressure Draining System

Max. Maximum
Connection Allow. TMA Body Operating Connection Located
Illustration Type Fluid Model
Type Press. °C Material Pressure Size on Page
barg barg
GD-22
Posi-Pressure
Regulator Air Screwed 10 80 Cast Iron GD-22 10 1/2" CRE-214

All models comply with the Pressure Equipment Directive PED 97/23/EC. For details, see specific product page or Armstrong PED Certificate.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-186
www.armstrong.be • marketing@armstrong.be
Sizing and Selection – PT-100/200/300/3500/400 Series

The Armstrong non-electric pump trap is sized based on actual For vented / open system receiver sizing:
condensate load (kg/h) being pumped. The following steps are • Determine the pressure from where the condensate is
used to size the pump. being discharged.
• Determine condensate load.
1. Determine the total condensate load to be pumped in kg/h.
See conversion factors tables on specific product page. Reference Percentage of Flash Steam chart on page CRE-200
2. Determine the total back pressure the pump will operate to find the pressure that corresponds with the discharge
against. Total back pressure is the sum of the following: condensate pressure. For this example, use 1,0 barg.
• Vertical lift expressed in barg (10 m lift = 1 barg).
• Existing pressure in condensate return line or D.A. tank Follow 1,0 barg on the horizontal axis where it intersects the
• Frictional loss from pipe, valves and fittings curve. Move left from the intersecting lines to the vertical axis
3. Determine type of motive gas to be used (steam, air or other for the percentage of flash steam that is created. For this
inert gas) and pressure available. example it will be 3% (see shaded area on Percentage of Flash
Steam chart).
Example:
• Condensate load = 1 100 kg/h. Multiply 3% by the condensate load. Using example above:
• Total back pressure = 1,5 barg 1 100 kg/h x 0,03 = 33 kg/h flash steam

Condensate Recovery
(5 m vertical lift = 0,5 barg, 1 barg in condensate return
line). Using the Vented Receiver Sizing table CRE-200-2 on page

Equipment
• Motive pressure is steam at 3,5 barg. CRE-200, find the amount of flash steam in column one. Follow
the table across to determine the size of the vented receiver.
Solution: Model EPT-206 (See shaded area on Vented Receiver Sizing table CRE-200-2
Find 1,5 barg total lift or back pressure in column two of EPT- for this example.)
200 Pumping Trap Capacities table on page CRE-191. Then
find 3,5 barg motive pressure in column one. Move across the For closed reservoir piping:
capacity table until you reach a model number with the correct • Determine condensate load (using example above 1 100
capacity. An EPT-206 has been highlighted above for this kg/h).
example.
Reference the inlet reservoir pipe sizing table CRE-200-1 for
Either a closed reservoir pipe or a vented receiver is required closed systems on page CRE-200. Find 1 100 kg/h in column
for proper condensate storage during the pump-down cycle of one. Move horizontally across to find proper pipe size. (Note
the pumping trap. length or diameter may be slightly enlarged when capacity falls
between given condensate loads in column one.) Selection is
shaded.

Accessories
Use of external check valves required for operation of pumping Digital Cycle Counter
trap.
Features
Insulation Jacket • Totalizer is UL recognized,
CSA certified
Features • 5-year lithium battery life
• Lower risk of injury • Eight-digit counter readout
• Higher energy efficiency • Both totalizer and housing
• Delays potential freezing are Nema 4 rated, for
protection against dust
particles and water
Gauge Glass Assembly • Easily installed on pumping
traps
Features: • Optional auxiliary contacts • Rated for temperatures up
• Condensate load monitoring available upon request to 178°C
• Allows troubleshooting not only of the pump, but also of • Push-button reset on face • Closed loop option
the installation upward or key lock reset for available
security
Note: The above applies to all models. Reference Bulletin No. AFH-237.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-187
www.armstrong.be • marketing@armstrong.be
 General Applications

OPEN SYSTEMS
For the majority of applications, a steam trap is recommended
on each piece of heat exchange equipment. The steam trap, or
traps, discharge to a vented receiver where flash steam will be
vented to the atmosphere. The pump trap is located
downstream and below the vented receiver, allowing for proper
fill head height. See table CRE-200-2 for vented receiver and
vent sizing for an open system.

Note: Drip trap on pump motive line may be discharged into

the receiver, the return line or to the drain.
Condensate Recovery
Equipment

Multiple or single traps discharging to vented receiver.

CLOSED SYSTEMS
Applications exist where it is desirable to tie the vent line back
2 bar
into the heat exchange space, equalizing the pressure in the
heat exchanger, reservoir/piping and the pump trap. This allows
water to flow by gravity down to the pump where it can be
returned. Valuable kJ remain within the system due to no flash
steam loss to the atmosphere through the vent. Closed system
1,5 bar applications can also be used to drain liquid from the
Note 3 equipment under a vacuum. See table CRE-200-1 for reservoir
Note 2
pipe sizing.
10 m
Note 1: If steam motive is used, the drip trap may be
discharged into the return line or to the drain.
Note 1
Note 2: Vent piping from the pump trap can be connected to
the inlet side of the equipment being drained if the pressure
drop across the equipment is less than 0,03 bar and there is a
2,5 bar
minimum of 600 mm of fill head present.

Note 3: A vacuum breaker might be installed to protect the heat

exchanger if the vent piping from the pump trap is connected to
the receiver. If the equipment modulated down to a sub-
atmospheric condition, the vacuum breaker will open to
Draining steam coil or heat exchanger when pressure is lower than return
equalize the system and provide adequate drainage.
line pressure. Note that a steam trap is not required in this application, as
differential pressure is always negative. For more details, see installation and
operation manuals.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-188
www.armstrong.be • marketing@armstrong.be
Condensate Drainage From
Temperature Controlled Equipment

2,1 bara 2,1 bara

4 bara 4 bara

0-4 0-4
bara bara

10 m 10 m
0 - 3,5
bara
∆P =
-3,1 - 0,4 bar
Reservoir

3,1 bara 3,1 bara

Condensate Recovery
Equipment
Problem: “Stall” Condition on Modulated Steam Control Armstrong Solution
Modulated steam controls are required to change steam The combination of Armstrong pump trap and Armstrong steam
pressure in the heat exchanger to control accurate product trap is the total solution to the stall condition by removing
output temperature. Due to these varying steam pressure condensate under all system conditions. When the steam
changes, a stall condition exists in all heat exchangers where system pressure is sufficient to overcome the back pressure,
condensate cannot flow through the steam trap due to the steam trap operates normally. When the system pressure
insufficient or even negative pressure differential. Under the falls to the stall condition, the pump trap operates and pumps
stall condition, partial or complete flooding will occur. Reference condensate through the steam trap. Temperature control and
figure above noting the stall conditions and problems that can condensate drainage are assured under all system conditions.
occur.
Note: The pump trap is sized for the stall conditions.

Problems Stall Calculation:

1. Stall condition – no condensate drainage due to insufficient tb - ∆t
pressure to move condensate through the steam trap Qcr = x Qs
2. Heat exchange equipment floods causing equipment ts - ∆t
damage from:
• Water hammer due to steam and condensate 107°C - 45°C
occupying the same space = x 1000 kg/h
• Corrosion due to carbonic acid forming from sub-cooled 120°C - 45°C
condensate reabsorbing trapped carbon dioxide and
non-condensable gases 62°C
3. Inaccurate temperature control = x 1000 kg/h
75°C
Stall Calculation
Use of the stall chart on right will determine the point where = 826 kg/h
flooding will occur.
Stall Information:
Application information required: Example - When the control valve allows more than 826 kg/h of steam to
Ps = Max. Steam Pressure in heat exchanger 1 barg enter into the heat exchanger, differential pressure will be
ts = Maximum Steam Temperature 120°C positive. Steam trap should be able to discharge 826 kg/h at
Qs = Maximum Steam Flow 1 000 kg/h 0,1 bar differential pressure.
or
Qs = Total Power of Heat Exchanger (kW) - When the control valve allows less than 826 kg/h of steam to
enter into the heat exchanger, differential pressure will be
Pb = Back Pressure 0,3 barg negative. Condensate pump should be able to discharge 826
tb = Corresponding temperature 107°C kg/h with 1 barg motive pressure and 0,3 barg back pressure.

t1 = Inlet Product Temperature 15°C - If the heat exchanger is oversized by 20%, it would be able to
t2 = Outlet Product Temperature 60°C handle up to 1 200 kg of steam per hour. The stall will appear
at 84,25%, which means 1 011 kg/h. As only 1 000 kg/h are
Qcr= Critical (Stall) Load needed to heat the maximum product load at the maximum
differential temperature, the pressure differential will always
be negative. In that case, the steam trap is not needed (see
closed systems on page CRE-188).

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-189
www.armstrong.be • marketing@armstrong.be
 EPT-200 Series Pumping Trap
Carbon Steel, Same Side Connections
For capacities up to 2 620 kg/h (steam motive)... Discharge per cycle 19 liters

T
H
A
Condensate Recovery

Z
Equipment

The Armstrong EPT-200 Series Vertical Pumping Trap is a low Table CRE-190-1. EPT-200 Pumping Trap Physical Data
maintenance, non-electric solution to move condensate or other Model Number EPT-204 EPT-206
liquids from low points, low pressures or vacuum spaces to an mm mm
area of higher elevation or pressure. Condensate can be
“C” 270 270
returned well above the 99°C limit of conventional electric
condensate pumps without the headaches of leaking seals or “H” 550 550
cavitation problems. “T” 224 224
“U” 57 57
Features “M” 224 224
• Non-electric – Uses inexpensive steam, air or gas to “A” 129 145
operate the pump trap “Z” 489 505
• Low profile – For tight space requirements (min. 550 Cap Removal 400 400
mm)
Weight (kg) 50 51
• Explosion proof – Intrinsically safe
• Durable carbon steel body for long service life Number of Cap Bolts 8 8
• Low maintenance – No leaking seals, impeller or motor Maximum Allowable Pressure (Vessel Design) 10 bar @ 343°C.
problems Maximum Operating Pressure 9 bar.
All models are CE Marked according to the PED (97/23/EC).
• All stainless steel internals with durable Inconel X-750
springs
• Externally removable/replaceable seats – Valve and
seats can be replaced or cleaned without removing pump
cap from body

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-190
www.armstrong.be • marketing@armstrong.be
EPT-200 Series Pumping Trap
Carbon Steel, Same Side Connections
For capacities up to 2 620 kg/h (steam motive)... Discharge per cycle 19 liters

Table CRE-191-1. EPT-200 Pumping Trap Materials Table CRE-191-2. EPT-200 Pumping Trap Connection Sizes
Body and Cap Fabricated Steel P265GH/P275H EPT-204 EPT-206
Cap Gasket Compressed Non-Asbestos Inlet DN 25 DN 40
Bolts SA - 193 gr B7 Inlet Check Valve DN 25 DN 40
Inlet Valve Assembly Stainless Steel Outlet DN 25 DN 40
Vent Valve Assembly Stainless Steel Outlet Check Valve DN 25 DN 40
Valve Assembly Washers Zinc-Plated Steel Motive Valve 1/2" BSPT
Mechanism Assembly Cast Stainless Steel Vent Valve 1" BSPT
Plug Steel Body Drain 1/2" NPT
Springs Inconel X-750 Gauge Glass 1/2" BSPT
Cycle Counter 1/2" BSPT

Table CRE-191-3. EPT-200 Pumping Trap Capacities (300 mm Filling Head)

EPT-204 EPT-206
Total Lift or

Condensate Recovery
Motive Pressure DN 25 x DN 25 DN 40 x DN 40
Back Pressure
Steam Air Steam Air

Equipment
bar bar kg/h kg/h kg/h kg/h
1,0 980 1 145 1 470 1 635
1,7 1 105 1 250 1 740 1 905
3,5 1 200 1 360 1 850 1 960
0,35
5,0 1 240 1 470 1 905 2 015
7,0 1 290 On request 1 960 On request
8,5 1 320 On request 2 015 On request
1,7 815 1 090 1 305 1 470
3,5 1 090 1 225 1 740 1 850
5,0 1,0 1 145 1 360 1 795 1 905
7,0 1 180 On request 1 825 On request
8,5 1 200 On request 1 850 On request
2,5 820 925 1 150 1 250
3,5 930 1 090 1 310 1 415
5,0 1,5 1 050 1 250 1 470 1 580
7,0 1 130 On request 1 600 On request
8,5 1 275 On request 1 650 On request
3,5 760 925 850 1 090
4,0 815 1 090 1 090 1 250
5,0 3,0 925 1 200 1 250 1 360
7,0 980 On request 1 375 On request
8,5 1 045 On request 1 430 On request
4,5 625 1 090 750 1 090
5,0 720 1 250 900 1 250
4,0
7,0 900 On request 1 200 On request
8,5 935 On request 1 280 On request
Notes: Above capacities are the results of actual steam testing using a minimum 93°C condensate. Published capacities are based on the use of external check
valves supplied by Armstrong. Fill head measured from drain point to top of pump cap. Discharge per cycle: 19 liters.
Shadow shows cells used for the selection example on page CRE-187.

Table CRE-191-4. EPT-200 Capacity Conversion Factors for other Fill Heads Options
Filling Head (mm) • Gauge Glass Assembly with Guards (Brass or Cadium
Model Plated Carbon Steel)
0 150 300 600 900
EPT-204 0,65 0,90 1,00 1,20 1,30 • Digital Cycle Counter (Open or Closed Systems; with or
without Auxiliary contacts)
EPT-206 0,65 0,90 1,00 1,20 1,30
• Insulation Jacket
Note: Filling head is measured from drain of receiver to top of pump's cap.

This pump might be suitable for special applications. Please

consult factory

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-191
www.armstrong.be • marketing@armstrong.be
 EPT-400 Series Pumping Trap
Carbon Steel, In-Line Connections
For capacities up to 7 310 kg/h (steam motive)... Discharge per cycle 29 liters

G R
Condensate Recovery

Z
Equipment

The Armstrong EPT-400 Series Vertical Pump Trap is the low Table CRE-192-1. EPT-400 Pumping Trap Physical Data
maintenance, non-electric solution to move condensate or other Model Number EPT-404 EPT-406 EPT-408 EPT-412
liquids from low points, low pressures or vacuum spaces to an mm mm mm mm
area of higher elevation or pressure. Condensate can be
“C” (diameter) 400 400 400 400
returned at temperatures well above the 99°C limit of
conventional electric condensate pumps without the headaches “G” 260 260 260 260
of leaking seals or cavitation problems. “H” 710 710 710 710
“R” 240 240 240 240
Features “T” 305 305 305 305
• Non-electric – Uses inexpensive steam, air or gas to “U” 57 57 57 57
operate the pump trap “V” 552 552 552 552
• Explosion proof – Intrinsically safe “Z” 680 710 730 750
• AD-Merkblätter carbon steel or stainless steel body
Cap Removal 400 400 400 400
vessel
• Low maintenance – No leaking seals, impeller or motor Weight (kg) 67 71 75 88
problems Number of Cap Bolts 8 8 8 8
• All stainless steel internals with durable Inconel X-750 Maximum Allowable Pressure (Vessel Design) 10 bar @ 343°C.
springs Maximum Operating Pressure 9 bar.
• Externally removable/replaceable seats – Valve and All models are CE Marked according to the PED (97/23/EC).
seats can be replaced or cleaned without removing pump
cap from body

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-192
www.armstrong.be • marketing@armstrong.be
EPT-400 Series Pumping Trap
Carbon Steel, In-Line Connections
For capacities up to 7 310 kg/h (steam motive)... Discharge per cycle 29 liters

Table CRE-193-1. EPT-400 Pumping Trap Connection Sizes Table CRE-193-2. EPT-400 Pumping Trap Materials
EPT-404 EPT-406 EPT-408 EPT-412 Fabricated Steel P265GH/P275H
Body and Cap
Inlet DN 25 DN 40 DN 50 DN 80 AD-Merkblätter
Inlet Check Valve DN 25 DN 40 DN 50 DN 80 Cap Gasket Compressed Non-Asbestos
Outlet DN 25 DN 40 DN 50 DN 50 Bolts SA - 193 gr B7
Outlet Check Valve DN 25 DN 40 DN 50 DN 50 Inlet Valve Assembly Stainless Steel
Motive Valve 1/2" BSPT Vent Valve Assembly Stainless Steel
Vent Valve 1" BSPT Valve Assembly Washers Zinc-Plated Steel
Body Drain 1/2" NPT Mechanism Assembly Cast Stainless Steel
Gauge Glass 1/2" BSPT Plug Steel
Cycle Counter 1/2" BSPT Springs Inconel X-750

Table CRE-193-3. EPT-400 Pumping Trap Capacities (300 mm Filling Head)

EPT-404 EPT-406 EPT-408 EPT-412
Motive Total Lift or

Condensate Recovery
DN 25 x DN 25 DN 40 x DN 40 DN 50 x DN 50 DN 80 x DN 50
Pressure Back Pressure
Steam Air Steam Air Steam Air Steam Air

Equipment
bar bar kg/h kg/h kg/h kg/h kg/h kg/h kg/h kg/h
1,0 945 1 120 1 545 1 670 2 245 2 420 3 740 4 045
1,7 1 250 1 320 2 290 2 430 3 295 3 495 5 490 5 815
3,5 1 545 1 610 2 440 2 454 3 540 3 680 5 840 6 060
0,35
5,0 1 695 1 750 2 595 2 645 3 590 3 695 5 990 6 160
7,0 1 750 On request 2 695 On request 3 640 On request 6 040 On request
8,5 1 800 On request 2 745 On request 3 695 On request 6 090 On request
1,7 1 100 1 260 1 750 2 010 2 695 3 090 3 590 4 130
3,5 1 300 1 400 2 045 2 210 3 145 3 395 5 190 5 615
5,0 1,0 1 400 1 475 2 195 2 370 3 245 3 445 5 390 5 715
7,0 1 545 On request 2 400 On request 3 345 On request 5 490 On request
8,5 1 595 On request 2 440 On request 3 395 On request 5 590 On request
2,5 1 000 1 170 1 445 1 710 2 095 2 470 3 445 4 070
3,5 1 200 1 335 2 000 2 245 2 895 3 195 4 840 5 410
5,0 1,5 1 300 1 400 2 145 2 270 2 990 3 245 4 990 5 440
7,0 1 400 On request 2 345 On request 3 050 On request 5 090 On request
8,5 1 450 On request 2 980 On request 3 195 On request 5 190 On request
3,5 945 1 170 1 595 2 025 2 170 2 675 2 895 3 555
4,0 1 100 1 300 1 800 2 125 2 545 3 000 3 445 4 070
5,0 3,0 1 200 1 335 2 000 2 235 2 845 3 185 3 790 4 240
7,0 1 250 On request 2 095 On request 2 990 On request 4 045 On request
8,5 1 350 On request 2 245 On request 3 095 On request 4 240 On request
4,5 900 1 200 1 595 2 145 1 900 2 520 2 500 3 315
5,0 1 000 1 220 1 750 2 320 2 045 2 580 2 695 3 445
4,0
7,0 1 360 On request 1 850 On request 2 245 On request 2 995 On request
8,5 1 200 On request 1 900 On request 2 395 On request 3 195 On request
Notes: Above capacities are the results of actual steam testing using a minimum 93°C condensate. Published capacities are based on the use of external check
valves supplied by Armstrong. Fill head measured from drain point to top of pump cap. Discharge per cycle: 29 liters.

Table CRE-193-4. EPT-400 Capacity Conversion Factors for Other Fill Heads Options
Filling Head (mm) • Stainless 316L Body and Cap
Model • Gauge Glass Assembly with Guards (Brass or Cadium
0 150 300 600 900
EPT-404 0,70 0,85 1,00 1,30 1,40 Plated Carbon Steel)
• Digital Cycle Counter (Open or Closed Systems; with or
EPT-406 0,70 0,85 1,00 1,20 1,35
without Auxiliary contacts)
EPT-408 0,70 0,70 1,00 1,20 1,35
• Insulation Jacket
EPT-412 0,70 0,85 1,00 1,08 1,20
Note: Filling head is measured from drain of receiver to top of pump's cap. This pump might be suitable for special applications. Please
consult factory

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-193
www.armstrong.be • marketing@armstrong.be
 PT-300 Series Pumping Trap
Carbon Steel, In-Line Connections
For capacities up to 9 040 kg/h (steam motive)... Discharge per cycle 45 liters

U
T

H
G

R
Condensate Recovery

V C
Equipment

The Armstrong PT-300 Series Horizontal, Low Profile Pump

Trap is the low maintenance non-electric solution to move
condensate or other liquids from low points, low pressures or
vacuum spaces to an area of higher elevation or pressure.
Condensate can be returned at temperatures well above the
99°C limit of conventional electric condensate pumps without
the headaches of leaking seals or cavitation problems.

Features
• Non-electric – Uses inexpensive steam, air or gas to
operate the pump trap
• Low profile – For tight space requirements
• High capacity – Provides highest capacity in the industry,
moving 45 liters per pump cycle
• Explosion proof – Intrinsically safe
• ASME code stamped 150/300 carbon steel or stainless
steel body vessel
• Low maintenance – No leaking seals, impeller or motor
problems
• All stainless steel internals with durable Inconel X-750
springs
• Externally removable/replaceable seats – Valve and
seats can be replaced or cleaned without removing pump Table CRE-194-1. PT-300 Pumping Trap Physical Data
cap from body Model Number PT-308 PT-312
mm mm
“C” (diameter) 406 406
“G” 140 140
“H” 534 534
“R” 125 125
“T” 305 305
“U” 57 57
“V” 700 700
“Z” 1 017 1 045
Cap Removal 400 400
Weight (kg) 77 87
Number of Cap Bolts 8 8
Maximum Allowable Pressure (Vessel Design) 10 bar @ 343°C.
Maximum Operating Pressure 9 bar.
All models are not CE Marked according to the PED (97/23/EC).

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-194
www.armstrong.be • marketing@armstrong.be
PT-300 Series Pumping Trap
Carbon Steel, In-Line Connections
For capacities up to 9 040 kg/h (steam motive)... Discharge per cycle 45 liters

Table CRE-195-1. PT-300 Pumping Trap Materials Table CRE-195-2. PT-300 Pumping Trap Connection Sizes
Fabricated Steel 1O bar ASME Sec. VIII, Design PT-308 PT-312
Body and Cap
“U” Stamp Inlet DN 50 DN 80
Cap Gasket Compressed Non-Asbestos Inlet Check Valve DN 50 DN 80
Bolts SA - 193 gr B7 Outlet DN 50 DN 50
Inlet Valve Assembly Stainless Steel Outlet Check Valve DN 50 DN 50
Vent Valve Assembly Stainless Steel Motive Valve 1/2" BSPT
Valve Assembly Washers Zinc-Plated Steel Vent Valve 1" BSPT
Mechanism Assembly Cast Stainless Steel Gauge Glass 1/2" NPT
Plug Steel Cycle Counter 1/2" NPT
Springs Inconel X-750

Table CRE-195-3. PT-300 Pumping Trap Capacities (300 mm Filling Head)

PT-308 PT-312
Total Lift or

Condensate Recovery
Motive Pressure DN 50 x DN 50 DN 80 x DN 50
Back Pressure
Steam Air Steam Air

Equipment
bar bar kg/h kg/h kg/h kg/h
1,0 3 130 4 175 4 080 5 580
1,7 4 620 4 945 5 990 6 440
3,5 4 810 5 035 6 850 7 170
0,35
5,0 4 900 5 125 6 940 7 305
7,0 5 080 On request 7 030 On request
8,5 5 260 On request 7 530 On request
1,7 3 175 4 580 4 080 5 080
3,5 4 355 4 945 5 805 6 260
5,0 1,0 4 875 5 035 6 440 6 805
7,0 4 945 On request 6 485 On request
8,5 5 130 On request 6 850 On request
2,5 3 220 4 175 3 675 5 215
3,5 3 765 4 630 4 630 5 785
5,0 1,5 4 580 4 990 5 670 6 125
7,0 4 630 On request 5 760 On request
8,5 4 670 On request 5 900 On request
3,5 2 585 3 450 2 995 4 445
4,0 2 995 3 990 3 810 4 760
5,0 3,0 3 450 4 580 4 445 5 760
7,0 3 810 On request 4 580 On request
8,5 4 265 On request 4 670 On request
4,5 2 040 3 175 2 720 4 630
5,0 2 130 3 220 2 905 4 720
4,0
7,0 2 905 On request 3 220 On request
8,5 2 995 On request 3 360 On request
Notes: Above capacities are the results of actual steam testing using a minimum 93°C condensate. Published capacities are based on the use of external check
valves supplied by Armstrong. Fill head measured from drain point to top of pump cap. Discharge per cycle: 45 liters.

Table CRE-195-4. PT-300 Capacity Conversion Factors for Other Fill Heads Options
Filling Head (mm) • Gauge Glass Assembly with Guards (Brass or Cadium
Model Plated Carbon Steel)
0 150 300 600 900
PT-308 0,70 0,90 1,00 1,20 1,30 • Digital Cycle Counter (Open or Closed Systems; with or
PT-312 0,70 0,85 1,00 1,08 1,20
without Auxiliary contacts)
• Insulation Jacket
Note: Filling head is measured from drain of receiver to top of pump's cap.

This pump might be suitable for special applications. Please

consult factory

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-195
www.armstrong.be • marketing@armstrong.be
 PT-104 Low Profile Pumping Trap
Cast Iron, In-Line or Same Side Connections
For capacities up to 900 kg/h (steam motive)... Discharge per cycle 7 liters

The patented Armstrong PT-104 Mini Pump Trap is one of the Features
smallest non-electric solution that can move condensate or • Non-electric – Operates using inexpensive steam, air or
other liquids from lower to higher points and from lower to inert gas
higher pressures. Condensate can be returned at temperatures • Low maintenance – No leaking seals, impeller or motor
well above the 99°C limit of conventional electric centrifugal problems, reducing maintenance and downtime
pumps without the headaches of leaking seals or cavitation • Small and compact – Low profile body fits in tight space
problems. The PT-104 Mini Pump Trap is the small solution for requirements while allowing minimal fill head
a big problem. • Reduced installation cost – Single trade required for
installation and maintenance
• Explosion proof – Standard unit intrinsically safe
• All stainless steel internals – Corrosion resistant with
long service life
• Long-lasting Inconel X-750 springs

D
Condensate Recovery
Equipment

C
U
V
Z

Table CRE-196-1. PT-104 Pumping Trap Physical Data Table CRE-196-2. PT-104 Pumping Trap Materials
Model Number PT-104 Body and Cap Cast Iron ASTM A48 cl.30
mm Motive / Vent Valves Stainless Steel
“C” 273 Mechanism Assembly Cast Stainless Steel
“D” 470 Spring Inconel X-750
“G” 125 Bolts SA 449
“H” 400 Nuts ASTM A194 Gr. 2H
“T” 256 Plug Cast Iron
“U” 32 Gasket Compresses Non-Asbestos
“V” 435
“Z” 570 Table CRE-196-3. PT-104 Pumping Trap Connection Sizes
Cap Removal 150 Inlet DN 25
Weight (kg) 66 Inlet Check Valve DN 25
Number of Cap Bolts 12 Outlet DN 25
Maximum Operating Pressure 6 bar Outlet Check Valve DN 25
Maximum Allowable Pressure (vessel design) 10 bar @ 232°C Motive Valve 1/2" NPT
This model is CE Marked according to the PED (97/23/EC). Vent Valve 1/2" NPT
Gauge Glass 1" NPT
Cycle Counter 1" NPT

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-196
www.armstrong.be • marketing@armstrong.be
PT-104 Low Profile Pumping Trap
Cast Iron, In-Line or Same Side Connections
For capacities up to 900 kg/h (steam motive)... Discharge per cycle 7 liters

2,1 bara 2,1 bara

4 bara 4 bara

0-4 0-4
bara bara

10 m 10 m
0 - 3,5
bara
∆P =
-3,1 - 0,4 bar
Reservoir

3,1 bara 3,1 bara

Condensate Recovery
Equipment
Big Problem = Maintenance Headache! Small Solution = Long, trouble-free service life for heat
exchanger equipment due to condensate and non-
1. Space constraints – Heat exchanger equipment being low to condensable gas evacuation.
the floor.
2. No condensate drainage – Back pressure exceeds system 1. Small and compact – PT-104 Mini Pump Trap fits in tight
pressure. spaces.
3. Heat exchanger equipment floods, causing equipment 2. Condensate drainage – Motive pressure to PT-104 Mini
damage from: Pump Trap provides enough pressure to lift condensate to
• Water hammer – Steam and condensate occupying the return lines.
same space 3. Heat exchanger is free and clear of condensate due to
• Corrosion – Non-condensable gases are reabsorbed into proper drainage, provided by the PT-104 Mini Pump Trap.
the condensate, forming carbonic acid 4. Accurate temperature control providing less product loss.
4. Production loss – Due to inaccurate temperature control.

Table CRE-197-1. PT-104 Capacity Conversion Factors for Other Fill Heads Table CRE-197-2. PT-104 Pumping Trap Capacities (150 mm Filling Head)
Filling Head (mm) 0 150 300 600 or greater Total Lift or
Motive Pressure Steam Motive Air Motive
PT-104 0,7 1,0 1,2 Consult factory Back Pressure
Note: Filling head is measured from drain of receiver to top of pump's cap. bar bar kg/h kg/h
1,0 510 950
1,7 590 1 000
0,35
3,5 705 1 030
Options 5,0 750 1 045
• Gauge Glass Assembly with Guards (Brass or Cadium 1,7 295 860
Plated Carbon Steel) 3,5 1,0 320 930
• Digital Cycle Counter (Open or Closed Systems; with or 5,0 340 950
without Auxiliary contacts) 2,5 180 815
• Insulation Jacket
3,5 1,5 205 880
5,0 230 930
This pump might be suitable for special applications. Please
3,5 115 735
consult factory 3,0
5,0 135 825
Notes: Above capacities are the results of actual steam testing using a
minimum 93°C condensate. Published capacities are based on the use of
external check valves supplied by Armstrong. Fill head measured from drain
point to top of pump case. Discharge per cycle 7 liters.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-197
www.armstrong.be • marketing@armstrong.be
 PT-516 High Capacity Pumping Trap
Carbon Steel, In-Line Connections
For capacities up to 35 920 kg/h (steam motive)... Discharge per cycle 475 liters

Effective recovery and return of hot condensate are essential to

overall plant efficiency while conserving energy. Large amounts
of condensate provide the best opportunities to save energy.

The Armstrong PT-516 High Capacity Pump Trap is the low

maintenance, non-electric solution to moving large amounts of
condensate and other liquids from low points, low pressures or
vacuum spaces to an area of higher elevation or pressure.
Condensate can be returned at temperatures well above the
99°C limit of conventional electric pumps without the headaches
of leaking seals or cavitation.

Features
• Non-electric – Uses inexpensive steam, air or gas to
operate the pump trap
• No leaking seals/packings, impeller wear, electrical or
motor problems – Reduces maintenance and downtime
Condensate Recovery

• Single trade installation or repair reduces installation and

maintenance costs
Equipment

• Direct spring/float actuated mechanism – No

maintenance intensive diaphragm operated valve
mechanism
• Compression spring design – Reduces downtime,
ensures performance and reliability
• Rugged stainless steel internals – Durable and corrosion
B resistant for enhanced service life
• Closed loop – No motive steam or flash steam loss,
therefore capturing and returning all valuable kJ back to
the system (see General Applications on page CRE-188)
• Safety – Pump can be placed in flooded pits without fear
C
of electrocution or circuit breaker defaults
• Explosion proof – Standard unit intrinsically safe without
1/4" NPT
additional cost
Motive

Vent U Table CRE-198-1. PT-516 Pumping Trap Physical Data

mm
Withdrawal Length F
457 mm 1 1/2" NPT Inlet Connection 4" 150# ANSI Flg.
Outlet Connection 4" 150# ANSI Flg.
Motive Connection 2" NPT
2" NPT Vent Connection 2" NPT
Gauge Glass Connection 1/2" NPT
Outlet “B” 1 574
Inlet
“C” 914
“D” 484
R “E” 508
“F” 559
3/4" Drain D
“H” 1 219
“P” 44
P
“R” 222
“T” 711
“U” 100
Weight 366
Number of Bolts 12
H T Maximum Operating Pressure on standard unit: 10 bar.
For higher pressure, please consult factory.
Maximum Allowable Pressure (standard vessel design): 10 bar @ 277°C.
21 bar vessel available upon request.
This model is not CE Marked according to the PED (97/23/EC).

E 3/4" Hole
8 Places

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-198
www.armstrong.be • marketing@armstrong.be
PT-516 High Capacity Pumping Trap
Carbon Steel, In-Line Connections
For capacities up to 35 920 kg/h (steam motive)... Discharge per cycle 475 liters

Typical Applications Table CRE-199-1. PT-516 Pumping Trap Materials

Name of Part Description
• Low pressure heating systems
• Process heat exchanger or coils with modulating steam Fabricated Steel 10 bar ASME Sec.
Cap, Body, Bolting
control VIII Design “U” Stamp Coded
• Remote installations (tracing, tank farms or remote coils) Cap Gasket Compressed Non-Asbestos
• Systems under vacuum Inlet Valve Assembly Stainless Steel
• Hazardous (explosion proof) areas Vent Valve Assembly Stainless Steel
• Caustic environments Mechanism Assembly: Frame, Float
• Sumps or submersed areas Stainless Steel
& Spring
Notes: 21 bar ASME vessel available upon request. PT-516 available in all
stainless steel. Consult factory.

Armstrong PT-516 Pump Trap Sizing and Selection

Condensate Recovery
Table CRE-199-2. PT-516 Pumping Trap Capacities (600 mm Filling Head) Table CRE-199-3. PT-516 Capacity Conversion Factors for Other Fill Heads

Equipment
PT-516 Filling Head (mm)
Total Lift or Model
Motive Pressure 4" x 4" 0 150 300 400 600 900
Back Pressure
Steam Air PT-516 0,7 0,75 0,8 0,85 1,0 1,08
bar bar kg/h kg/h Note: Filling head is measured from drain of receiver to top of pump's cap.
1,0 13 150 26 160
1,7 16 870 28 110
3,5 21 925 30 750 Options
0,35
5,0 24 890 32 300 • Gauge Glass Assembly with Guards (Brass or Carbon
7,0 26 975 33 400 Steel, Cadium Plated)
10,0 29 930 On request • Digital Cycle Counter (Open or Closed Systems; with or
1,7 16 670 23 055 without Auxiliary contacts)
3,5 20 520 26 338 • Insulation Jacket
5,0 1,0 23 180 28 258
7,0 25 275 29 620 This pump might be suitable for special applications. Please
10,0 28 570 On request consult factory
2,5 13 260 20 990
Application Data
3,5 15 170 23 140
1. Fluid to be pumped: . . . . . . . . . .
5,0 1,5 17 500 25 575 2. Temperature of fluid
7,0 19 275 27 305 to be pumped: . . . . . . . . . . . . . .❑ °C
10,0 21 965 On request 3. Specific gravity: . . . . . . . . . . . . .
3,5 11 900 18 725 4. Required flow rate: . . . . . . . . . . .❑ m³/h ❑ kg/h
4,0 12 420 19 990 5. Equipment pressure: . . . . . . . . .❑ Modulation
5,0 3,0 13 055 21 535 . . . . . . . . . . . . . . . . . . . . . . . . . . Min........... to Max.............
7,0 13 870 23 530 . . . . . . . . . . . . . . . . . . . . . . . . . .❑ bar
10,0 15 025 On request 6. Fill head distance (A): . . . . . . . .❑ mm
7. Discharge condensate
4,5 11 790 14 540
return line size: . . . . . . . . . . . . . .❑ mm
5,0 11 975 15 215 8. Motive gas: . . . . . . . . . . . . . . . . .❑ Steam ❑ Air ❑ Gas
4,0
7,0 12 730 18 590 9. Motive pressure available: . . . . .❑ bar ❑ Other....................
10,0 13 800 On request 10. Return line pressure: . . . . . . . . .❑ bar ❑ Other....................
Notes: Above capacities are the results of actual steam testing using a 11. Vertical lift (H): . . . . . . . . . . . . . .❑ m
minimum 93°C condensate. Published capacities are based on the use of 12. Can pump be vented
external check valves supplied by Armstrong. Discharge per cycle: 475 liters. to atmosphere? . . . . . . . . . . . . .❑ Yes ❑ No
13. Is there a condensate
reservoir? . . . . . . . . . . . . . . . . . .❑ Yes ❑ No
Return Line
If yes, what size?.....................
14. Is reservoir vented? . . . . . . . . . .❑ Yes ❑ No
15. Would you like Armstrong
to quote on a packaged
“H” Lift
Receiver pre-piped engineered system? .❑ Yes ❑ No

Inlet
Vent

“A”
Filling Head Check Pumping Check Valve
Valve Trap
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-199
www.armstrong.be • marketing@armstrong.be
 Reservoir and Vented Receiver Sizing –
EPT-200/400, PT-300/104

Table CRE-200-1. Inlet Reservoir Pipe Sizing for Closed Systems

Condensate Load Reservoir Pipe Diameter
kg/h 2" 3" 4" 6" 8" 10"
Length of Pipe
mm mm mm mm mm mm
230 1 200 700 400
450 1 400 600 400
680 2 100 900 600
900 2 700 1 200 700
1 140 3 400 1 500 900 500
1 360 4 100 1 800 1 100 600
1 820 5 500 2 600 1 500 700
2 270 3 000 1 800 900 400
2 720 3 700 2 100 1 100 600
3 180 4 400 2 600 1 200 600
3 630 5 000 2 900 1 400 700 400
Condensate Recovery

4 080 3 400 1 500 900 600

4 540 3 700 1 700 900 600
Equipment

4 990 4 000 1 800 1 100 600

5 440 4 300 2 000 1 200 700
Note: When draining condensate from a single piece of equipment in a closed system, to achieve maximum energy efficiency a reservoir should be installed
horizontally above and ahead of the pump trap. Sufficient reservoir volume is required above the filling head level to hold condensate during the pump trap
discharge cycle. The chart above shows the minimum reservoir sizing, based on the condensate load, to prevent equipment flooding during the pump trap
discharge cycle.

Table CRE-200-2. Vented Receiver Sizing for Open Systems Percentage of Flash Steam Formed
Receiver Vent Line When Discharging Condensate to Reduce Pressure
Flash Steam Receiver Length
Diameter Diameter
kg/h in mm in
Percentage of Flash Steam

35 4" 900 1 1/2"

70 6" 2"
140 9" 2 1/2"
270 10" 3"
900
410 12" 4"
540 16" 6"
910 20" 8"
Note: When draining from single or multiple pieces of equipment in an open
system, a vented receiver should be installed horizontally above and ahead
of the pump trap. In addition to sufficient holding volume of the condensate
above the fill head of the pump trap to hold the condensate during the pump
3%
trap cycle, the receiver must also be sized to allow enough area for flash
steam and condensate separation. An overflow could also be added when
required. The minimum recommended water seal is 300 mm. This table -1 0 1 3,5 6,5 10 14 17 21
shows proper receiver tank sizing based on flash steam present. See the Bar from which condensate is discharged
chart at right to calculate the percentage of flash steam at a given pressure
Note: Back pressure = 0 barg
drop.

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-200
www.armstrong.be • marketing@armstrong.be
Reservoir and Vented Receiver Sizing –
PT-516 Series High Capacity

Either a closed reservoir pipe or a vented receiver is required Table CRE-201-1. PT-516 Inlet Reservoir Pipe Sizing for Closed Systems
for proper condensate storage during the pump-down cycle of Condensate Reservoir Pipe Diameter (in)
the pumping trap. Refer to the tables for sizing. Load kg/h 8" 10" 12" 16" 20" 24"
up to Length of Pipe (meter)
For Closed Reservoir Piping 4 500 2 1,8 1,5 0,9 0,6
1. Determine condensate load.
9 000 3,6 3,5 3,0 2,1 1,2
Example 13 500 kg/h:
• Reference the Inlet Reservoir Pipe table top right. Find 13 500 3,6 3,2 2,7 1,8 1,2
the 13 500 kg/h condensate load in column one. Move 18 000 5,2 4,3 3,6 2,4 1,8
across the columns to find the proper pipe sizing. 22 500 4,9 4,0 2,7 1,8
27 000 4,6 3,3 2,4
For Vented Receiver Sizing 31 500 4,6 3,0
1. Determine the pressure from where the condensate is being Note: When BP/MP is less than 50%, the reservoir diameters above can be
discharged. reduced by 1/2". When draining condensate from a single piece of equipment
2. Determine condensate load. in a closed system, to achieve maximum energy efficiency (see Closed
• Reference the chart below to find the pressure that System figure on page CRE-188) a reservoir should be installed horizontally
corresponds with the discharge condensate pressure. above and ahead of the pump trap. Sufficient reservoir volume is required

Condensate Recovery
For this example, use 1 barg. above the filling head level to hold condensate during the pump trap
• Follow 1 barg to where it intersects the “0” barg curve. discharge cycle. The table above shows the minimum reservoir sizing, based

Equipment
Move to the left from intersecting lines for the percentage on the condensate load, to prevent equipment flooding during the pump trap
of flash that will be created. For this example, it will be 3%. discharge cycle.
• Multiply the 3% by the condensate load. For this
example, it is 13 500 kg/h. Thus, 13 500 x 0,03 = 405 Table CRE-201-2. PT-516 Vented Receiver for an Open System
kg/h of flash steam.
Receiver Receiver Length Vent Line
Flash Steam kg/h
Diameter (in) (mm) Diameter (in)
Using the Vented Receiver table bottom right, find the amount
up to
of flash steam in column one. Follow the table across to
450 16" 150 6"
determine the sizing of the vented receiver.
900 20" 150 8"
1 360 24" 150 8"
Percentage of Flash Steam Formed 1 820 26" 150 10"
When Discharging Condensate to Reduce Pressure 2 270 28" 150 10"
2 720 30" 180 12"
3 180 32" 180 12"
3 630 36" 180 14"
Percentage of Flash Steam

Note: When draining from single or multiple pieces of equipment in an open

system, a vented receiver should be installed horizontally above and ahead
of the pump trap (see Open System figure on page CRE-188). In addition to
sufficient holding volume of the condensate above the fill head of the pump
trap to hold the condensate during the pump trap cycle, the receiver must
also be sized to allow enough area for flash steam and condensate
separation. An overflow could also be added when required. The minimum
recommended water seal is 300 mm. The table above shows proper receiver
tank sizing based on flash steam present. See chart left to calculate the
percentage (%) of flash steam at a given pressure drop.
3%

-1 0 1 3,5 6,5 10 14 17 21
Bar from which condensate is discharged
Note: Back pressure = 0 barg

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-201
www.armstrong.be • marketing@armstrong.be
 SEPT-206-OS Open System Package
For capacities up to 2 620 kg/h (steam motive)... Pump discharge per cycle 19 liters

From institutional low pressure steam heating to industrial

process critical heat transfer, Armstrong’s engineered
condensate pump trap packages provide the most efficient and
cost-effective solution to customers’ condensate recovery
requirements.

Armstrong Engineered Condensate Pump Trap Packages

provide the following benefits:
• Reduce piping layout, detailed engineering and
procurement
• Minimize field labor
• Prevent installation errors and safety mishaps
• Shorten overall project lead times
• Single source responsibility
• Lower total cost of ownership for the customer

To optimize the return on your condensate investment, consider

Condensate Recovery

Armstrong Engineered Pump Trap Package Solutions.

Equipment

Table CRE-202-1. EPT-206-OS Package List of Materials

Pump's Body and Cap Fabricated Steel P265GH/P275H
Pump's Inlet and Valve Assembly Stainless Steel
Pump's Mechanism Assembly Cast Stainless Steel
Pump's Springs Inconel X-750
Wafer Check Valves Stainless Steel
Vented Receiver Carbon Steel
TVS-811 with integral
Steam Motive Line Drain Trap
Strainer & Check Valve
Isolation Ball Valves Carbon Steel
Table CRE-202-3. EPT-206-OS Package Dimensions and Weights
Piping and Flanges Carbon Steel
Model Number OS-860 OS-1160 OS-1460 OS-1760
mm mm mm mm
Table CRE-202-2. EPT-206-OS Package Connections
EPT-206-OS E 0 300 600 900
Pump Inlet DN 40 F 860 1 160 1 460 1 760
Pump Outlet DN 40 Weight (kg) 128 129 130 131
Receiver Inlets (2) 2 x DN 40 Note: Standard dimensions can be modified on request.
Receiver Vent DN 80 Maximum Allowable Pressure (Vessel Design) 10 bar @ 343°C.
Inlet Ball Valve DN 40 Maximum Operating Pressure 9 bar.
Vent Ball Valve DN 25 All models are CE Marked according to the PED (97/23/EC).

Pump Motive Line 1/2" BSPT

Pump Vent Line 1" BSPT
Drains 1/2" BSPT Model shown on drawing: SEPT-206-OS-1160

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-202
www.armstrong.be • marketing@armstrong.be
SEPT-206-OS Open System Package
For capacities up to 2 620 kg/h (steam motive)... Pump discharge per cycle 19 liters

Table CRE-203-1. EPT-206-OS Package Capacities for Steam and Air

OS-860 OS-1160 OS-1460 OS-1760
Motive Total Lift or
Filling Head 0 mm Filling Head 300 mm Filling Head 600 mm Filling Head 900 mm
Pressure Back Pressure
Steam Air Steam Air Steam Air Steam Air
bar bar kg/h kg/h kg/h kg/h kg/h kg/h kg/h kg/h
1,0 956 1 063 1 470 1 635 1 764 1 962 1 911 2 126
1,7 1 131 1 238 1 740 1 905 2 088 2 286 2 262 2 477
3,5 1 203 1 274 1 850 1 960 2 220 2 352 2 405 2 548
0,35
5,0 1 238 1 310 1 905 2 015 2 286 2 418 2 477 2 620
7,0 1 274 On request 1 960 On request 2 352 On request 2 548 On request
8,5 1 310 On request 2 015 On request 2 418 On request 2 620 On request
1,7 848 956 1 305 1 470 1 566 1 764 1 697 1 911
3,5 1 131 1 203 1 740 1 850 2 088 2 220 2 262 2 405
5,0 1,0 1 167 1 238 1 795 1 905 2 154 2 286 2 334 2 477
7,0 1 186 On request 1 825 On request 2 190 On request 2 373 On request

Condensate Recovery
8,5 1 203 On request 1 850 On request 2 220 On request 2 405 On request
2,5 748 813 1 150 1 250 1 380 1 500 1 495 1 625

Equipment
3,5 852 920 1 310 1 415 2 572 1 698 1 703 1 840
5,0 1,5 956 1 027 1 470 1 580 1 764 1 896 1 911 2 054
7,0 1 040 On request 1 600 On request 1 920 On request 2 080 On request
8,5 1 073 On request 1 650 On request 1 980 On request 2 145 On request
3,5 553 709 850 1 090 1 020 1 308 1 105 1 417
4,0 709 813 1 090 1 250 1 308 1 500 1 417 1 625
5,0 3,0 813 884 1 250 1 360 1 500 1 632 1 625 1 768
7,0 894 On request 1 375 On request 1 650 On request 1 788 On request
8,5 930 On request 1 430 On request 1 716 On request 1 859 On request
4,5 488 709 750 1 090 900 1 308 975 1 417
5,0 585 813 900 1 250 1 080 1 500 1 170 1 625
4,0
7,0 780 On request 1 200 On request 1 440 On request 1 560 On request
8,5 832 On request 1 280 On request 1 536 On request 1 664 On request
Notes: Above capacities are the results of actual steam testing using a minimum 93°C condensate. Published capacities are based on the use of external check
valves supplied by Armstrong. Fill head measured from drain point to top of pump cap. Discharge per cycle : 19 liters
On request, package dimensions could be adapted to existing installation. In that case, Filling Head and capacity might be different. For more information,
please consult us or our local Representative.

Options on Pump
• Gauge Glass Assembly with Guards (Brass or Cadium
Plated Carbon Steel)
• Digital Cycle Counter (with or without Auxiliary contacts)
• Insulation Jacket

Options on Package
• Pressure Reducing Valve to reduce the pressure of the
motive fluid (steam, compressed air, etc.)
• Stainless steel Trap Valve Station on steam motive line
• Liquid Drainer if compressed air is used as motive fluid
• Manometers

This package might be suitable for special applications. Please

consult factory

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-203
www.armstrong.be • marketing@armstrong.be
 SEPT-206-CS Closed System Package
For capacities up to 2 620 kg/h (steam motive)... Pump discharge per cycle 19 liters

Armstrong Engineered Condensate Pump Trap Packages

provide the following benefits:
• Reduce piping layout, detailed engineering and
procurement
• Minimize field labor
• Prevent installation errors and safety mishaps
• Shorten overall project lead times
• Single source responsibility
• Lower total cost of ownership for the customer

Table CRE-204-1. EPT-206-CS Package List of Materials

Pump's Body and Cap Fabricated Steel P265GH/P275H
Pump's Inlet and Valve Assembly Stainless Steel
Pump's Mechanism Assembly Cast Stainless Steel
Pump's Springs Inconel X-750
Condensate Recovery

Wafer Check Valves Stainless Steel

Closed Receiver Carbon Steel
Equipment

Steam Trap at Pump Outlet Model 816 in Cast Iron

TVS-811 with integral
Steam Motive Line Drain Trap
Strainer & Check Valve
Air Vent Model TV-2 in Bronze
Isolation Ball Valves Carbon Steel
Piping and Flanges Carbon Steel
Vacuum Breaker is installed as standard

Table CRE-204-2. EPT-206-CS Package Connections Table CRE-204-3. EPT-206-CS Package Dimensions and Weights
EPT-206-CS Model Number CS-745 CS-1045 CS-1345 CS-1645
Pump Inlet DN 40 mm mm mm mm
Pump Outlet DN 40 E 0 300 600 900
Receiver Inlet DN 40 F 745 1 045 1 345 1 645
816 Trap Outlet DN 50 H 1 050 1 350 1 650 1 950
Inlet Ball Valve DN 40 Weight (kg) 202 203 204 205
Drain Trap Ball Valve DN 15 Note: Standard dimensions can be modified on request.
Pump Motive Line 1/2" BSPT Maximum Allowable Pressure (Vessel Design) 10 bar @ 343°C.
Maximum Operating Pressure 9 bar.
Pump Vent Line 1" BSPT
All models are CE Marked according to the PED (97/23/EC).
Drains 1/2" BSPT

Model shown on drawing: SEPT-206-CS-1045

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-204
www.armstrong.be • marketing@armstrong.be
SEPT-206-CS Closed System Package
For capacities up to 2 620 kg/h (steam motive)... Pump discharge per cycle 19 liters

Table CRE-205-1. EPT-206-CS Package Capacities for Steam and Air

CS-745 CS-1045 CS-1345 CS-1645
Motive Total Lift or
Filling Head 0 mm Filling Head 300 mm Filling Head 600 mm Filling Head 900 mm
Pressure Back Pressure
Steam Air Steam Air Steam Air Steam Air
bar bar kg/h kg/h kg/h kg/h kg/h kg/h kg/h kg/h
1,0 956 1 470 1 764 1 911
1,7 1 131 1 740 2 088 2 262
3,5 1 203 1 850 2 220 2 405
0,35
5,0 1 238 1 905 2 286 2 477
7,0 1 274 1 960 2 352 2 548
8,5 1 310 2 015 2 418 2 620
1,7 848 1 305 1 566 1 697
3,5 1 131 1 740 2 088 2 262
5,0 1,0 1 167 1 795 2 154 2 334
7,0 1 186 1 825 2 190 2 373

Condensate Recovery
8,5 1 203 1 850 2 220 2 405
2,5 748 Air motive is 1 150 Air motive is 1 380 Air motive is 1 495 Air motive is

Equipment
not advised not advised not advised not advised
3,5 852 1 310 1 572 1 703
for closed for closed for closed for closed
5,0 1,5 956 systems 1 470 systems 1 764 systems 1 911 systems
7,0 1 040 1 600 1 920 2 080
8,5 1 073 1 650 1 980 2 145
3,5 553 850 1 020 1 105
4,0 709 1 090 1 308 1 417
5,0 3,0 813 1 250 1 500 1 625
7,0 894 1 375 1 650 1 788
8,5 930 1 430 1 716 1 859
4,5 488 750 900 975
5,0 585 900 1 080 1 170
4,0
7,0 780 1 200 1 440 1 560
8,5 832 1 280 1 536 1 664
In closed systems, only steam is recommended to be used as motive fluid!

Notes: Above capacities are the results of actual steam testing using a minimum 93°C condensate. Published capacities are based on the use of external check
valves supplied by Armstrong. Fill head measured from drain point to top of pump cap. Discharge per cycle : 19 liters
On request, package dimensions could be adapted to existing installation. In that case, Filling Head and capacity might be different. For more information,
please consult Armstrong or its local Representative.

Options on Pump
• Gauge Glass Assembly with Guards (Brass or Cadium
Plated Carbon Steel)
• Digital Cycle Counter (with or without Auxiliary contacts)
• Insulation Jacket

Options on Package
• Pressure Reducing Valve to reduce the motive pressure
• Stainless steel Trap Valve Station on steam motive line
• Steam Trap in Carbon Steel
• Manometers

This package might be suitable for special applications. Please

consult factory

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-205
www.armstrong.be • marketing@armstrong.be
 SEPT-412-OS Open System Package
For capacities up to 7 310 kg/h (steam motive)... Discharge per cycle 29 liters

Table CRE-206-1. List of Materials Table CRE-206-3. Dimensions and Weights

Pump's Body and Cap Fabricated Steel P265GH/P275H Model Number OS-1340 OS-1640 OS-1940 OS-2240
Pump's Inlet and Valve Assembly Stainless Steel mm mm mm mm
Pump's Mechanism Assembly Cast Stainless Steel E 0 300 600 900
Pump's Springs Inconel X-750 F 1 340 1 640 1 940 2 240
Wafer Check Valves Stainless Steel Weight (kg) 340 350 360 370
Vented Receiver Carbon Steel Note: Standard dimensions can be modified on request.
TVS-811 with integral Maximum Allowable Pressure (Vessel Design) 10 bar @ 343°C.
Steam Motive Line Drain Trap Maximum Operating Pressure 9 bar.
Strainer & Check Valve
All models are CE Marked according to the PED (97/23/EC).
Isolation Ball Valves Carbon Steel
Piping and Flanges Carbon Steel

Table CRE-206-2. Connections

EPT-412-OS
Pump Inlet DN 80
Condensate Recovery

Pump Outlet DN 50
Equipment

Receiver Inlet DN 80
Receiver Vent DN 200
Inlet Ball Valve DN 80
Vent Ball Valve DN 40
Pump Motive Line 1/2" BSPT
Pump Vent Line 1" BSPT
Drains 1/2" BSPT

Model shown on drawing: SEPT-412-OS-1640

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-206
www.armstrong.be • marketing@armstrong.be
SEPT-412-OS Open System Package
For capacities up to 7 310 kg/h (steam motive)... Discharge per cycle 29 liters

Table CRE-207-1. Capacities for Steam and Air

OS-1340 OS-1640 OS-1940 OS-2240
Motive Total Lift or
Filling Head 0 mm Filling Head 300 mm Filling Head 600 mm Filling Head 900 mm
Pressure Back Pressure
Steam Air Steam Air Steam Air Steam Air
bar bar kg/h kg/h kg/h kg/h kg/h kg/h kg/h kg/h
1,0 2 618 2 832 3 740 4 045 4 039 4 369 4 488 4 854
1,7 3 843 4 071 5 490 5 815 5 929 6 280 6 588 6 978
3,5 4 088 4 242 5 840 6 060 6 307 6 545 7 008 7 272
0,35
5,0 4 193 4 312 5 990 6 160 6 469 6 653 7 188 7 392
7,0 4 228 On request 6 040 On request 6 523 On request 7 248 On request
8,5 4 263 On request 6 090 On request 6 577 On request 7 308 On request
1,7 2 513 2 891 3 590 4 130 3 877 4 460 4 308 4 956
3,5 3 633 3 931 5 190 5 410 5 605 6 064 6 228 6 738
5,0 1,0 3 773 4 001 5 390 5 440 5 821 6 172 6 468 6 858
7,0 3 843 On request 5 490 On request 5 929 On request 6 588 On request

Condensate Recovery
8,5 3 913 On request 5 590 On request 6 037 On request 6 708 On request
2,5 2 412 2 849 3 445 4 070 3 721 4 396 4 134 4 884

Equipment
3,5 3 388 3 787 4 840 5 615 5 227 5 843 5 808 6 492
5,0 1,5 3 493 3 808 4 990 5 715 5 389 5 875 5 988 6 528
7,0 3 563 On request 5 090 On request 5 497 On request 6 108 On request
8,5 3 633 On request 5 190 On request 5 605 On request 6 228 On request
3,5 2 027 2 489 2 895 3 555 3 127 3 839 3 474 4 266
4,0 2 412 2 849 3 445 4 070 3 721 4 396 4 134 4 884
5,0 3,0 2 653 2 968 3 790 4 240 4 093 4 579 4 548 5 088
7,0 2 832 On request 4 045 On request 4 369 On request 4 854 On request
8,5 2 968 On request 4 240 On request 4 579 On request 5 088 On request
4,5 1 750 2 321 2 500 3 315 2 700 3 580 3 000 3 978
5,0 1 887 2 412 2 695 3 445 2 911 3 721 3 234 4 134
4,0
7,0 2 097 On request 2 995 On request 3 235 On request 3 594 On request
8,5 2 237 On request 3 195 On request 3 451 On request 3 834 On request
Notes: On request, package dimensions could be adapted to existing installation. In that case, Filling Head and capacity might be different. For more
information, please consult Armstrong or its local Representative. Discharge per cycle: 29 liters

Options on Pump
• Gauge Glass Assembly with Guards (Brass or Cadium
Plated Carbon Steel)
• Digital Cycle Counter (with or without Auxiliary contacts)
• Insulation Jacket

Options on Package
• Pressure Reducing Valve to reduce the motive pressure
(steam, compressed air, etc.)
• Stainless steel Trap Valve Station on steam motive line
• Liquid Drainer if compressed air is used as motive fluid
• Manometers

This package might be suitable for special applications. Please

consult factory

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-207
www.armstrong.be • marketing@armstrong.be
 SEPT-412-CS Closed System Package
For capacities up to 7 310 kg/h (steam motive)... Discharge per cycle 29 liters

Table CRE-208-1. List of Materials Table CRE-208-3. Dimensions and Weights

Pump's Body and Cap Fabricated Steel P265GH/P275H Model Number CS-1050 CS-1350 CS-1650 CS-1950
Pump's Inlet and Valve Assembly Stainless Steel mm mm mm mm
Pump's Mechanism Assembly Cast Stainless Steel E 0 300 600 900
Pump's Springs Inconel X-750 F 1 050 1 350 1 650 1 950
Wafer Check Valves Stainless Steel H 1 359 1 659 1 959 2 259
Closed Receiver Carbon Steel Weight (kg) 310 320 335 350
Steam Trap at Pump Outlet Model 150-L-8 in Cast Iron Note: Standard dimensions can be modified on request.
TVS-811 with integral Strainer & Maximum Allowable Pressure (Vessel Design) 10 bar @ 343°C.
Steam Motive Line Drain Trap Maximum Operating Pressure 9 bar.
Check Valve
All models are CE Marked according to the PED (97/23/EC).
Air Vent Model TV-2 in Bronze
Isolation Ball Valves Carbon Steel
Piping and Flanges Carbon Steel
Vacuum Breaker is installed as standard
Condensate Recovery

Table CRE-208-2. Connections

Equipment

EPT-412-CS
Pump Inlet DN 80
Pump Outlet DN 50
Receiver Inlet DN 80
150-L-8 Trap Outlet DN 50
Inlet Ball Valve DN 80
Drain Trap Ball Valve DN 15
Pump Motive Line 1/2" BSPT
Pump Vent Line 1" BSPT
Drains 1/2" BSPT

Model shown on drawing: SEPT-412-CS-1350

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-208
www.armstrong.be • marketing@armstrong.be
SEPT-412-CS Closed System Package
For capacities up to 7 310 kg/h (steam motive)... Discharge per cycle 29 liters

Table CRE-209-1. Capacities for Steam and Air

CS-1050 CS-1350 CS-1650 CS-1950
Motive Total Lift or
Filling Head 0 mm Filling Head 300 mm Filling Head 600 mm Filling Head 900 mm
Pressure Back Pressure
Steam Air Steam Air Steam Air Steam Air
bar bar kg/h kg/h kg/h kg/h kg/h kg/h kg/h kg/h
1,0 2 618 3 740 4 039 4 488
1,7 3 843 5 490 5 929 6 588
3,5 4 088 5 840 6 307 7 008
0,35
5,0 4 193 5 990 6 469 7 188
7,0 4 228 6 040 6 523 7 248
8,5 4 263 6 090 6 577 7 308
1,7 2 513 3 590 3 877 4 308
3,5 3 633 5 190 5 605 6 228
5,0 1,0 3 773 5 390 5 821 6 468
7,0 3 843 5 490 5 929 6 588

Condensate Recovery
8,5 3 913 5 590 6 037 6 708
2,5 2 412 Air motive is 3 445 Air motive is 3 721 Air motive is 4 134 Air motive is

Equipment
not advised not advised not advised not advised
3,5 3 388 4 840 5 227 5 808
for closed for closed for closed for closed
5,0 1,5 3 493 systems 4 990 systems 5 389 systems 5 988 systems
7,0 3 563 5 090 5 497 6 108
8,5 3 633 5 190 5 605 6 228
3,5 2 027 2 895 3 127 3 474
4,0 2 412 3 445 3 721 4 134
5,0 3,0 2 653 3 790 4 093 4 548
7,0 2 832 4 045 4 369 4 854
8,5 2 968 4 240 4 579 5 088
4,5 1 750 2 500 2 700 3 000
5,0 1 887 2 695 2 911 3 234
4,0
7,0 2 097 2 995 3 235 3 594
8,5 2 237 3 195 3 451 3 834
In closed systems, only steam is recommended to be used as motive fluid!

Notes: On request, package dimensions could be adapted to existing installation. In that case, Filling Head and capacity might be different. For more
information, please consult Armstrong or its local Representative. Discharge per cycle: 29 liters

Options on Pump
• Gauge Glass Assembly with Guards (Brass or Cadium
Plated Carbon Steel)
• Digital Cycle Counter (with or without Auxiliary contacts)
• Insulation Jacket

Options on Package
• Pressure Reducing Valve to reduce the motive pressure
• Stainless steel Trap Valve Station on steam motive line
• Steam Trap in Carbon Steel
• Manometers

This package might be suitable for special applications. Please

consult factory

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-209
www.armstrong.be • marketing@armstrong.be
 EAFT Series Flash Tanks
Carbon Steel
For condensate capacities up to 9 070 kg/h... Flash steam up to 1 360 kg/h

NPT

Vent
(H)

F J

K
Inlet D
(G)
A

E
Condensate Recovery
Equipment

B
Outlet
(I) C

Features Table CRE-210-1. EAFT Dimensions and Weights (in mm)

• CE marked vessels
Model No. EAFT-6 EAFT-8 EAFT-12 EAFT-16
• Standard pressure rating 10 bar (other pressure ratings
available upon request) A 914 914 1 016 1 058
• Standard models are designed and sized to cover a wide B 559 584 584 660
range of applications and loads C 254 254 241 254
• Flash vessels are designed to provide low velocity flash D 1 270 1 301 1 407 1 452
steam with no water carryover E 965 932 1 016 1 058
• Quick payback for flash recovery investment F 273 273 406 406
• Special tanks available upon request G 2" 150# 3" 150# 4" 150# 6" 150#
H 2 1/2" 150# 4" 150# 6" 150# 6" 150#
Flash Steam Savings Analysis
Part I: Determining the amount of flash steam produced I 1 1/2" 1 1/2" 2" 2"
A. Condensate Load A= kg/h J 3/4" 1" 1 1/2" 2"
B. Annual hours of operation B= h/year K 1/2" 1/2" 1/2" 1/2"
C. Steam Cost C= €/ton Note: Standard connections “G” and “H” are flanged ANSI 150#, all others
D. Flash steam percentage from chart are NPT. Available also with DIN flanged PN40 “G” and “H” connections, all
(on page CRE-211) D= % others being BSPT. Special sizes available upon request.
E. Flash steam produced:
D x A = flash steam produced E= kg/h
Table CRE-210-2. EAFT Capacities
Part II: Determining value of the flash steam Maximum Condensate Load Maximum Flash Load
Model No.
F. Annual flash steam savings: kg/h kg/h
F=ExBxC F= €/year EAFT-6 900 230
1 000 EAFT-8 2 270 450
EAFT-12 4 540 900
EAFT-16 9 070 1 360
Maximum Allowable Pressure (Vessel Design): 10 bar.
Maximum Allowable Temperature: 260°C.
Maximum Operating Pressure: 10 bar.
All models are CE Marked according to the PED (97/23/EC).

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-210
www.armstrong.be • marketing@armstrong.be
EAFT Series Flash Tanks
Carbon Steel
For condensate capacities up to 9 070 kg/h... Flash steam up to 1 360 kg/h

How much flash steam is available? Percentage of Flash Steam formed when discharging
1. Follow horizontal axis right to primary discharge pressure. Condensate to Reduced Pressure
30
2. Follow vertically up to secondary pressure curve.

Percentage of Flash Steam

3. Move left to “Percentage of flash steam”.
25
Example:
Condensate load = 4 500 kg/h A
Primary pressure = 4,5 bar 20
B
Secondary pressure = 0,6 bar
C

Percentage of flash = 10,6% 15 D

E
Secondary steam load = 464 kg/h
F
(4 500 kg/h x 0,106 = 464 kg/h) G
10 Back Press.
Curve bar
Selection: A -0,6

Condensate Recovery
B -0,3
Model EAFT-12 5
C 0
D 0,6

Equipment
E 1,2
F 2,0
G 2,6
0
-1 0 3,5 4,5 10 14 17 21

Pressure in bar from which Condensate Is discharged

Application Information

A. Condensate Load to Flash Tank: 2 700 kg/h High Pressure

B. Pressure of Incoming Condensate: 6,5 bar Steam

C. Flash Tank Pressure: 1,2 barg

D. Flash Percentage: 9,5%
E. Flash Amount = A x (D/100) = 257 kg/h
F. Low Pressure Steam Required: 1 150 kg/h
G. High Pressure Steam (used as Motive): 5 bar
H. Back Pressure: 2 bar
Low Pressure
Steam
Flash tank will accommodate (A) 2 700 kg/h of condensate at
(B) 6,5 bar, resulting in (E) 257 kg/h of flash steam at (C) 1,2
barg. The flash tank shall be Armstrong Model EAFT-12.

The pressure reducing valve shall pass (F) 1 150 kg/h of steam
from (G) 14 barg to (C) 1,2 barg. Pressure reducing valve shall
be GP-2000 in DN20.
High Pressure
Considering that back pressure (4) is 2 bar, it will always be Condensate

higher than the Flash Tank Pressure (C), which is 1,2 bar. That
is why, a Pumping Trap is necessary. The Pumping Trap shall
be an Armstrong EPT-408 as it should discharge (A - E) 2 143
kg/h with a motive pressure of 5 bar.

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-211
www.armstrong.be • marketing@armstrong.be
 Stainless Steel Sump Ejector

Armstrong offers a stainless steel sump ejector for use in

draining unwanted water from steam pits, steam tunnels or
enclosed spaces. The Sump Ejector uses a snap-acting Inconel
X-750 spring-assisted mechanism, which engages a steam
motive valve, turning the pump on or off as the float rises and
falls. The all stainless steel design will ensure long life in the
rather harsh environment of a steam pit.

The Sump Ejector is designed to eliminate maintenance

headaches and safety issues surrounding steam pits, tunnels
and enclosed spaces.

Features
• All stainless steel construction and design guard against
corrosion
• True steam-on, steam-off operation
• Heavy duty Inconel X-750 springs provide a long,
Condensate Recovery

trouble-free service life

• The small, compact and unique cast stainless steel
Equipment

design is unlike anything on the market today

Options
• 1 1/2" stainless steel sump ejector available, please
consult factory

Pump Discharge Steam Inlet

3/4" MNPT 1/2" NPT
3/4" Street Elbow
304 Stainless Steel
Body
Assembly

Float

3/4" x 356 mm 508 mm

304 Stainless
Steel Nipple

3/4" Strainer

178 mm 356 mm

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-212
www.armstrong.be • marketing@armstrong.be
Stainless Steel Sump Ejector

Table CRE-213-1. Sump Ejector Materials

Name of Part Material
Mechanism ASTM A351 CF8M
Springs Inconel X-750
Springs Ends 304 Stainless Steel
Clevis Pins 304 Stainless Steel
Body ASTM A351 CF8M
Nozzle 308 Stainless Steel
Seat Retainer 303 Stainless Steel
Motive Ball 440-C Stainless Steel
Motive Valve 316 Stainless Steel
Rod Seal PTFE
Seal Spring Hastelloy C-276
Rod Wiper Nitrile
O-Ring EPDM

Condensate Recovery
Bolts 18-8 Stainless Steel
Strainer Body Glass filled nylon

Equipment
Strainer Mesh Stainless Steel
Fittings 304 Stainless Steel
Pipe 304 Stainless Steel

Table CRE-213-2. Sump Ejector Capacities in m³/h

Water Temperature 16°C Water Temperature 38°C Water Temperature 60°C
Discharge
Motive Steam Pressure barg Motive Steam Pressure barg Motive Steam Pressure barg
Head (cm)
3 4 6 7 8 10 3 4 6 7 8 10 4 6 7 8 10
0 1,4 2,12 2,64 2,78 2,92 2,94 1,4 2,05 2,10 1,96 1,82 1,82 1,25 1,21 1,23 1,25 1,25
150 0,9 1,66 2,26 2,53 2,71 2,83 0,7 1,62 1,87 1,85 1,78 1,78 1,03 0,98 1,21 1,23 1,23
300 0,5 1,19 1,89 2,28 2,51 2,71 – 1,19 1,64 1,76 1,73 1,73 0,80 0,75 1,19 1,19 1,19
460 – 0,73 1,50 2,03 2,30 2,62 – 0,75 1,41 1,64 1,66 1,69 – 0,52 1,16 1,16 1,16
610 – – 1,14 1,75 2,10 2,51 – – 1,19 1,53 1,62 1,66 – 0,30 1,14 1,12 1,12
760 – – – 1,53 1,89 2,39 – – – 1,41 1,55 1,62 – – 1,12 1,09 1,09
910 – – – 1,28 1,69 2,28 – – – 1,30 1,50 1,57 – – 1,09 1,05 1,05
1 070 – – – – 1,48 2,17 – – – – 1,46 1,53 – – – 1,03 1,03
1 220 – – – – 1,28 2,07 – – – – 1,39 1,50 – – – 0,98 0,98
1 370 – – – – – 1,96 – – – – – 1,46 – – – – 0,96
1 520 – – – – – 1,85 – – – – – 1,41 – – – – 0,91
Note: Maximum operating pressure is 12 bar. No increase in capacity with motive pressure over 10 bar.
This model comply with the article 3.3 of the PED (97/23/EC).

Steam
Inlet
Pump Discharge

Trap Discharge
Optional to Condensate
Mounting Return
Bracket

High Water Level Trip Point

Low Water Level Trip Point

Suction Inlet

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-213
www.armstrong.be • marketing@armstrong.be
 GD-22 Posi-Pressure Draining System
For Heat Exchangers up to 500 kg/h of Steam

Forget About Flooded Heat Exchangers

The major cause of flooded heat exchangers is a lack of
sufficient pressure differential across the steam trap under
modulated steam conditions. With Armstrong’s Posi-Pressure
Control System, there is always a minimum preset differential
pressure between the heat exchanger and the condensate
return system. Even if the pressure in the condensate return
changes, the Posi-Pressure Controller automatically adjusts to
maintain the preset differential.

Forget About Water Hammer

When heat exchangers flood, steam and cold condensate
frequently come in contact with each other. When this happens,
the steam rapidly condenses, causing water hammer. This
water hammer condition can cause damage to heat
exchangers, piping and fittings. By eliminating heat exchanger
flooding, the Posi-Pressure Control System will solve the
Condensate Recovery

problem.
Equipment

Forget About Frozen Steam Coils

Most steam coils freeze because they are flooded with
condensate. Costly – bulky – and high maintenance face and
by-pass coil systems were created to solve this problem by
maintaining a positive differential steam pressure. Now, with
Armstrong’s Posi-Pressure Control System, simple and
inexpensive modulated control systems can do the same job.
However, we must caution that proper steam coil design, steam
trapping and venting practices are also required for freeze
protection. If assistance is needed, Armstrong’s
Representatives are trained to analyze your total steam system
and offer you solutions to your problems.

Condensate
Posi-Pressure
Vacuum Return
Coil Controller
Breaker

Check
Valve

Temperature Plant or
Control Valve Instrument Air

Airflow
Meter

Steam
Steam Main Coil

Pressure
Sensing Line
300 mm
Airflow
Min.
300 mm
Min.

Safety
Drain

Armstrong
Steam Trap

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-214
www.armstrong.be • marketing@armstrong.be
GD-22 Posi-Pressure Draining System
For Heat Exchangers up to 500 kg/h of Steam

How Does the Posi-Pressure Control System Work?

A normal steam system may modulate into a vacuum to control
temperature. A vacuum breaker is often installed to prevent this
condition. Once the vacuum breaker opens, temperature control
is accomplished by mixing the air with the steam. The steam/air
mixture results in a lower temperature. However, even a
vacuum breaker will not work if condensate has to be elevated
to an overhead return, or if the return system is pressurized.

The Posi-Pressure Control System acts as a vacuum breaker.

Instead of introducing air at atmospheric pressure, the controller
injects air at an elevated pressure into the heat exchanger. The
user presets the level of elevated air pressure at the time of
installation. Rather than a specific pressure, the controller
maintains a specific differential pressure across the steam trap.
Even if a steam trap fails or other causes change the
condensate return pressure, the controller will sense this

Condensate Recovery
difference and maintain the preset differential.

Equipment
How Much Air Will Be Used?
The Posi-Pressure Control System uses very little air. The
amount depends upon the size of the steam trap selected. Air
usage can vary from as little as 0,3 to 2,5 Nm³/h or more on Table CRE-215-1. Dimensions (in mm)
large systems. Once the initial air is introduced, only the Size L A H H1 Cv Weight
leakage through the large vent bucket in the steam trap must 1/2" 146 133 298 57 2,5 8,4 kg
be added. This air volume is so low that it is practically Note : “L” Dimension does not include companion flanges. Add 25 mm for
undetectable in a deaerator. companion flanges.
This model comply with the article 3.3 of the PED (97/23/EC).
Are There Any Other Advantages?
Yes! It is generally recommended that float and thermostatic
traps be used on modulated steam systems because they drain Table CRE-215-2. Materials
better when there is no motive pressure other than the static Body Cast Iron ASTM A48
head of condensate. With a positive pressure always being Main Valve NBP
maintained by the Posi-Pressure Control System, an inverted Valve Seat 304 Stainless Steel
bucket steam trap with its inherent longer life expectancy can, Diaphragm NBR
and must, be used. Since air is injected at a positive pressure,
ANSI 125 lb. Flange with 1/2" NPT
carbon dioxide (the real cause of corrosion) is diluted and Connection
companion flange
swept clear of the heat exchanger.

Table CRE-215-3. Specifications

Inlet Reduced Maximum Minimum
Application
Pressure Pressure Temperature Differential
Air 10 bar 0,5 - 2,5 bar 79°C 0,5 bar

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • Belgium
Tel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
CRE-215
www.armstrong.be • marketing@armstrong.be