TLV PowerTrap GP10F User manual

172-65378MA-03 (GP10F PowerTrap) 23 April 2019
GP10F
Copyright © 2019 by TLV CO., LTD.
All rights reserved

172-65378MA-03 (GP10F PowerTrap) 23 Apr 2019
1
Contents
Introduction ...........................................................................2
Safety Considerations...........................................................3
General Description ..............................................................5
Application ..................................................................................................................5
Operation ..............................................................................6
Specifications........................................................................7
Configuration.........................................................................7
Installation.............................................................................8
Open System* Piping (Steam System Example).........................................................8
Installation Procedure .................................................................................................9
Sizing the Condensate Receiver/Reservoir...............................................................12
Installing Several PowerTrap Units in Parallel...........................................................16
Installation and Maintenance Space...................................17
Operation and Periodic Inspection......................................18
Operation..................................................................................................................18
Periodic Inspection and Diagnosis ............................................................................19
Disassembly/Reassembly...................................................21
Recommended Tools List for Disassembly/Reassembly...........................................22
1. Removing/Reattaching the Cover Unit..................................................................23
2. Removing/Reattaching the Float...........................................................................24
3. Removing/Reattaching the Snap-action Unit.........................................................24
4. Removing/Reinstalling the Exhaust Valve.............................................................25
5. Removing/Reinstalling the Exhaust Valve Seat.....................................................25
6. Removing/Reinstalling the Motive Medium Intake Valve and Valve Seat ..............26
7. Checking/Adjusting the Gap between the Push Plate and the Motive Medium Intake
Valve......................................................................................................................27
Troubleshooting ..................................................................28
Determining the Problem from the Symptoms...........................................................28
Types of Failure and their Causes ............................................................................29
Causes and Corrective Measures.............................................................................30
Product Warranty ................................................................33
Service................................................................................34

172-65378MA-03 (GP10F PowerTrap) 23 Apr 2019
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Introduction
Thank you for purchasing the TLV PowerTrap.
This product has been thoroughly inspected before being shipped from the
factory. When the product is delivered, before doing anything else, check the
specifications and external appearance to make sure nothing is out of the
ordinary. Also be sure to read this manual carefully before use and follow the
instructions to be sure of using the product properly.
If detailed instructions for special order specifications or options not contained in
this manual are required, please contact TLV for full details.
This instruction manual is intended for use with the model(s) listed on the front
cover. It is necessary not only for installation, but for subsequent maintenance,
disassembly/reassembly and troubleshooting. Please keep it in a safe place for
future reference.

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Safety Considerations
•Read this section carefully before use and be sure to follow the instructions.
•Installation, inspection, maintenance, repairs, disassembly, adjustment and valve
opening/closing should be carried out only by trained maintenance personnel.
•The precautions listed in this manual are designed to ensure safety and prevent
equipment damage and personal injury. For situations that may occur as a result of
erroneous handling, three different types of cautionary items are used to indicate the
degree of urgency and the scale of potential damage and danger: DANGER,
WARNING and CAUTION.
•The three types of cautionary items above are very important for safety: be sure to
observe all of them as they relate to installation, use, maintenance and repair.
Furthermore, TLV accepts no responsibility for any accidents or damage occurring as
a result of failure to observe these precautions.
Symbols
Indicates a DANGER, WARNING or CAUTION item.
DANGER
Indicates an urgent situation which poses a threat of death or serious
injury
WARNING
Indicates that there is a potential threat of death or serious injury
CAUTION
Indicates that there is a possibility of injury or equipment/product
damage
WARNING
NEVER apply direct heat to the float.
The float may explode due to increased internal pressure, causing
accidents leading to serious injury or damage to property and equipment.
CAUTION
Install properly and DO NOT use this product outside the
recommended operating pressure, temperature and other
specification ranges.
Improper use may result in such hazards as damage to the product or
malfunctions that may lead to serious accidents. Local regulations may
restrict the use of this product to below the conditions quoted.
Use hoisting equipment for heavy objects (weighing
approximately 20 kg (44 lb) or more).
Failure to do so may result in back strain or other injury if the object
should fall.
Take measures to prevent people from coming into direct contact
with product outlets.
Failure to do so may result in burns or other injury from the discharge
of fluids.
Continued on next page

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CAUTION
When disassembling or removing the product, wait until the
internal pressure equals atmospheric pressure and the surface of
the product has cooled to room temperature.
Disassembling or removing the product when it is hot or under
pressure may lead to discharge of fluids, causing burns, other injuries
or damage.
Be sure to use only the recommended components when
repairing the product, and NEVER attempt to modify the product
in any way.
Failure to observe these precautions may result in damage to the
product and burns or other injury due to malfunction or the discharge of
fluids.
Do not use excessive force when connecting threaded pipes to
the product.
Over-tightening may cause breakage leading to fluid discharge, which
may cause burns or other injury.
Use only under conditions in which no freeze-up will occur.
Freezing may damage the product, leading to fluid discharge, which
may cause burns or other injury.
Use only under conditions in which no water hammer will occur.
The impact of water hammer may damage the product, leading to fluid
discharge, which may cause burns or other injury.
Take measures to ensure the proper handling, such as recovery
or dilution, of hazardous fluids discharged at product outlets.
Outflow of fluid or fluid leaks may lead to hazards such as flammable
conditions or corrosion, which may result in injury, fires, damage or
other accidents.

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General Description
Install properly and DO NOT use this product outside the recommended
operating pressure, temperature and other specification ranges.
Improper use may result in such hazards as damage to the product or
malfunctions which may lead to serious accidents. Local regulations
may restrict the use of this product to below the conditions quoted.
CAUTION
Application
The PowerTrap is used to discharge liquid from vacuum-pressure or low-pressure areas
to high-pressure areas, or from lower to higher elevations.
There are two types of delivery systems (piping methods): the closed system and the
open system. The GP10F is for use with open systems. It can be used with closed
systems, but only where there is always a negative pressure differential (e.g. vacuum
equipment). Other PowerTrap models are available for different systems.
Check to make sure which PowerTrap model is most suitable for use on the type of
system that is being planned for installation.
Type of
System
Closed System Open System
System
Overview
Equip-
ment
Reservoir
Condensate
Recovery Line
Exhaust
Pipe
Power
Trap
Equip-
ment Reservoir
Power
Trap
Equip-
ment
Steam
Trap
Steam
Trap
Power
Trap
Equip-
ment
Receiver
Discharge to
Atmosphere
Condensate
Recovery line
Venting
Pipe
Exhaust
Pipe
Overflow Pipe
Equip-
ment
Steam
Trap
Steam
Trap
Power
Trap
Equip-
ment
Receiver
Discharge to
Atmosphere
Condensate
Recovery line
Venting
Pipe
Exhaust
Pipe
Overflow Pipe
Benefits

No need for external steam trap (GT
model features built-in trap)
No flash steam discharge
Small reservoir
Use with vacuum equipment possible

Collection of condensate from multiple
equipment possible
Can be used where trap is lower than
receiver, such as equipment situated
near grade (providing there is sufficient
differential pressure)
Notes

Only one piece of equipment possible
per system
Equipment has minimum height
requirement to ensure that condensate
flows naturally, by gravity
(approx.: GP14/GT14/GP10/GP10/
GT10 – 0.8 m (32 in); GP10F – 1 m
(40 in); GP10L/GT10L – 0.3 or 0.5 m
(12 or 20 in); GT5C – 170 mm (7 in))

Separate steam trap required for each
piece of equipment
Requires venting pipe to discharge
flash steam to atmosphere
Model
Mechanical pump with built-in trap
GT14/GT10/GT10L/GT14L/GT14M/
GT5C
Mechanical pump
GP14/GP10/GP10L/GP14L/GP14M/
GP5C/GP10F
Where there is ALWAYS a negative
pressure differential
(e.g. vacuum equipment),
GP14/GP10/GP10L/GP14L/GP14M/
GP5C/GP10F can be used

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Operation
Take measures to prevent people from coming into direct contact with
product outlets. Failure to do so may result in burns or other injury from
the discharge of fluids.
CAUTION
(1) When condensate flows from the condensate inlet pipe through the inlet check valve
into the body of the unit, the air in the body escapes through the exhaust valve
(which equalizes the internal pump pressure to the pressure of the condensate
source) and the float rises, as shown in (1) below.
(2) When the float rises to its high level, the push rod on the snap-action unit rises
quickly, simultaneously closing the exhaust valve and opening the intake (motive
medium) valve. The pressure supplied by the motive medium causes the internal
pressure in the unit to become greater than the back pressure. The inlet check valve
closes and the outlet check valve is pushed open, thus discharging the condensate
in the unit through the outlet pipe, as shown in (2) below.
(3) As a result of the condensate in the unit being discharged, the water level in the unit
drops and the float descends. When the float reaches its low level, the push rod on
the snap-action unit moves down quickly, simultaneously opening the exhaust valve
and closing the intake (motive medium) valve and the status reverts to that shown in
(1) below.
Check Valve
Body
Float
Cover Unit Exhaust Valve
(open)
Motive Medium
Intake Valve
(closed)
Push Rod
Pumped
Medium
Inlet Pipe
Check Valve
Pumped
Medium
Outlet Pipe
Exhaust Valve
(closed)
Motive Medium
Intake Valve
(open)
(1) Pumped Medium Inflow (2) Pumped Medium Discharge
NOTE: Configuration of tank/body may differ slightly.

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Specifications
Install properly and DO NOT use this product outside the recommended
operating pressure, temperature and other specification ranges.
Improper use may result in such hazards as damage to the product or
malfunctions which may lead to serious accidents. Local regulations
may restrict the use of this product to below the conditions quoted.
CAUTION
Use only under conditions in which no freeze-up will occur. Freezing
may damage the product, leading to fluid discharge, which may cause
burns or other injury.
CAUTION
Refer to the product nameplate for detailed specifications.
Model
Serial Number
Maximum Allowable Temperature*(TMA)
Maximum Operating Temperature (TMO)
Maximum Allowable Pressure*
Maximum Operating Pressure
Valve No.**
Nominal Diameter
Motive Medium Pressure Range
0.03 to 1.05 MPaG (5 to 150 psig)
Max. Allowable Back Pressure
0.05 MPa (7 psi) less than motive medium pressure used
* Maximum allowable pressure (PMA) and maximum allowable temperature (TMA) are
PRESSURE SHELL DESIGN CONDITIONS, NOT OPERATING CONDITIONS.
** Valve No. is displayed for products with options. This item is omitted from the nameplate when there
are no options.
Configuration
Exhaust
Outlet
Plug
Intake Valve Unit
Motive Medium Inlet
Exhaust
Valve
Unit
Exhaust Outlet
Motive Medium
Inlet
Snap-action Unit
Float
Pumped
Medium
Outlet
Pumped
Medium
Inlet
Tank Unit
(Body)
Cover Gasket
NOTE:
Configuration of
tank/body may
differ slightly.
50 mm (2 in)Pumped Medium Outlet 80 mm (3 in)Pumped Medium Inlet 25 mm (1 in)Exhaust Outlet 20 mm (¾ in)Motive Medium Inlet SizeConnection Pumped Medium Outlet
Pumped Medium Inlet
Exhaust Outlet
Motive Medium Inlet SizeConnection
GP10F Cover Unit

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Installation
Install properly and DO NOT use this product outside the recommended
operating pressure, temperature and other specification ranges.
Improper use may result in such hazards as damage to the product or
malfunctions which may lead to serious accidents. Local regulations
may restrict the use of this product to below the conditions quoted.
CAUTION
Use hoisting equipment for heavy objects (weighing approximately
20 kg (44 lb) or more). Failure to do so may result in back strain or other
injury if the object should fall.
CAUTION
Take measures to prevent people from coming into direct contact with
product outlets. Failure to do so may result in burns or other injury from
the discharge of fluids.
CAUTION
Do not use excessive force when connecting threaded pipes to the
product. Over-tightening may cause breakage leading to fluid
discharge, which may cause burns or other injury.
CAUTION
Use only under conditions in which no water hammer will occur. The
impact of water hammer may damage the product, leading to fluid
discharge, which may cause burns or other injury.
CAUTION
Open System* Piping (Steam System Example)
P2
If water hammer due to steam backflow in the condensate recovery line is expected, installation
of a check valve vertically and as close as possible to the recovery line is recommended.
TLV COS/COSR
Pressure Reducing
Valve TLV CV10 Pressure
Control Valve
P
1
Steam-using
Equipment
Steam Trap
When the rise in piping to the condensate recovery
line is 30 m (100 ft) or further from GP10F,
installation of a check valve is recommended for
the prevention of return water hammer.
Pipe the discharge to a safe area
such as a pit.
TLV
GP10F Bypass
Valve
Backflow Water Hammer
Prevention Check Valve
Exhaust
Valve
Motive
Medium
Valve
Vent Pipe
Receiver
Filling Head
Standard: 1070 mm (42 in)
Minimum: 860 mm (33 in)
Flash Steam
(Open to atmosphere)
Pumped Medium (Condensate)
Outlet Pipe
Backflow Water Hammer
Prevention Check Valve
Overflow
H
Pumped Medium
(Condensate)
Recovery Line
Differential
Pressure
Pm - Pb ≥
0.05 MPa
(7 psi)
Pumped Medium Inlet ValvePumped Medium Outlet Valve
Exhaust Pipe
25 mm (1 in) min.
Back Pressure
P
b
= P
2
+ H
Motive Medium Pressure Pm
0.03 to 1.05 MPaG
(5 to 150 psig)
Motive Medium Supply Pipe
20 mm (
3
/
4
in) min.
Pumped Medium
(Condensate)
Inlet Pipe
Steam Trap
Check Valve
Air Vent
Ball Valve
Strainer
Union
NOTE: This sketch is for explanation purposes only and is not intended as an installation design.
* Consult with TLV for closed system piping.

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Installation Procedure
Refer to the systems outlined in the “General Description” to select the correct system
and model for the application. Installation, inspection, maintenance, repairs,
disassembly, adjustment and valve opening/closing should be carried out only by
trained maintenance personnel.
(1) Pumped Medium:
Fluids that can be discharged through the PowerTrap are limited to steam condensate,
water and non-flammable, non-toxic fluids with specific gravities 0.85 to 1.0. PowerTraps
that have been constructed for other specific fluids are not limited by this restriction.
(2) Motive Medium Supply Piping:
•The motive medium supply pipe diameter should be at least 20 mm(3/4in).
•Install a 40-mesh or finer strainer on the PowerTrap motive medium supply pipe,
as close to the PowerTrap as possible, while allowing sufficient space for
maintenance of the strainer. Strainers should be angled in the 3 or 9 o’clock
positions for horizontal installations.
•The motive medium inlet pressure should be between 0.03 to 1.05 MPaG (5 to 150
psig), and at least 0.05 MPa (7 psi) greater than the system back pressure.
•Steam, compressed air, nitrogen or other non-flammable, non-toxic fluids may be
used as the motive medium.
•For closed systems:Use steam or some other such condensable gas as the
motive medium. Except in special cases, do not use non-condensable gasses
such as air or nitrogen
•When the motive medium is steam, if the application will require that the equipment
be shut down (non-operating) for periods of 2 months or longer, install piping
connecting the motive medium supply line to the receiver, being sure to install a drip
leg on the motive medium supply line, and a steam trap in the drip leg (between
where it branches to go to the PowerTrap and where it enters the receiver). This
measure is not necessary when the motive medium is compressed air or nitrogen.
(3) Pressure Reducing Valve on the Motive Medium Supply Piping:
•When the motive medium pressure is greater than the maximum allowed for the
particular PowerTrap model used (see “Specifications”), install a TLV COS/COSR
series pressure reducing valve in order to reduce the motive medium pressure to
the PowerTrap. Use good piping practices when selecting the installation location
for COS/COSR. Be sure to install a safety valve between the pressure reducing
valve and the PowerTrap.
•When the motive medium pressure is less than the maximum allowed for the
particular PowerTrap model used, if a reducing valve is to be installed to slow the
speed of the flow, the installation of a safety valve is not required.
•Install the pressure reducing valve as far away from the PowerTrap as possible.
–When the motive medium pressure is less than 0.5 MPaG (72.5 psig): at least
3 m (10 ft)
–When the motive medium pressure is 0.5 MPaG or greater (72.5 psig or
greater): at least 3 m + 1 m for every 0.1 MPaG over 0.5 MPaG (10 ft + 1 ft for
every 4.5 psig over 72.5 psig)

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•The pressure setting on the pressure reducing valve should be between 0.05 to
0.15 MPa (7 to 20 psi) higher than the back pressure.
When the discharge capacity of the PowerTrap is insufficient for the set motive
pressure, increase this set pressure even further.
(4) Exhaust Piping:
•The exhaust pipe diameter should be at least 25 mm (1 in).
•The exhaust pipe should be connected to the top of the receiver.
•For open systems:If the PowerTrap exhaust line has to discharge to
atmosphere, a sound level of approximately 90 to 100 dB may be emitted from the
exhaust pipe discharge outlet for two to three seconds. If soundproofing
measures are necessary, install a silencer. (If the exhaust line is connected to the
receiver, the sound level will be below 60 dB.)
•Make sure that the distance from the ground to the highest point on the exhaust
pipe (where it enters the receiver) does not exceed 3 m (10 ft). If it exceeds 3 m
(10 ft), condensate must be drained from the exhaust pipe in order not to obstruct
the exhaust. Implement one of the following countermeasures: (See the figures
below.)
(a) For Open Systems Only: Add a float-type steam trap to the exhaust pipe at
a point just above where the exhaust pipe exits the unit body. (Figure 1)
(b) For Open and Closed Systems: Add piping connecting the exhaust pipe to
the pumped medium inlet pipe between the reservoir and the strainer, being
sure to install a check valve on the piping to prevent backflow of condensate
from the pumped medium inlet pipe to the exhaust pipe. (Figure 2)
When the exhaust piping height exceeds 3 m (10 ft.)
Vent Line Equipment
When the
exhaust
piping is
3 m (10 ft.)
or more
Outlet
Pipe
Inlet
Pipe
Pit
Close to
Power
Trap
Pit
Pit
Exhaust
Piping Receiver
Overflow
Pipe
Steam
Trap
Power
Trap
Vent Line* Equipment
Receiver/
Reservoir
Check
Valve
Pit Outlet
Pipe
Inlet
Pipe
Exhaust
Piping
Overflow
Pipe*
Pit
Close to
Power
Trap
When the
exhaust
piping is
3 m (10 ft.)
or more
Equipment
Receiver/
Reservoir
Power
Trap
Figure 1: Open Systems
Figure 2: Open & Closed Systems
* For Open Systems only
(5) Inlet and Outlet Piping
•Install a 40-mesh or finer strainer on the PowerTrap pumped medium inlet pipe.
The installation should be in a location that allows sufficient space for
maintenance of the strainer.
•Ensure that the inlet and outlet check valves are installed in the correct direction.
The check valve on the inlet pipe in particular should be installed right next to the
PowerTrap.
•Only TLV check valves (CK3MG) should be used; proper discharge capacity
cannot be guaranteed with other check valves.

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(6) Valves on the Various Pipes
•In order to ensure the proper discharge capacity, use full bore ball valves or gate
valves on the pumped medium inlet and outlet lines as well as on the motive
medium supply and exhaust lines. If it is necessary to reduce the velocity of the
motive medium supply, a needle valve can be used. However, be aware that the
discharge capacity will be reduced. (Refer to 1.e in the “Operation” section.)
•Install union or flanged joints between the valves and the PowerTrap to allow for
easy maintenance.
•Be sure to provide the necessary maintenance space for PowerTrap disassembly
and repair (see “Installation and Maintenance Space”).
(7) Receiver and Filling Head
•Please refer to “Sizing the Condensate Receiver/Reservoir”.
The size and vent pipe aperture are determined by (a) the amount of any flash
steam in the in-flowing condensate (pumped medium) and (b) the amount of
pumped medium held back while the PowerTrap is discharging. If the receiver is
small, the flow of flash steam may cause condensate to flow out the vent pipe. If
the vent pipe size is small, the pressure in the receiver will rise, restricting the
pumped medium inflow. Be sure to select a receiver pipe of the correct size.
•The filling head represents the distance from the bottom of the PowerTrap (from
grade) to the bottom of the receiver/reservoir. The standard filling head is
1070 mm (42 in). When an installation calls for a lower filling head, a filling head
of less than 1070 mm (42 in) is allowable. However, the minimum filling head is
860 mm (33 in).
•For open systems:
- If venting flash steam to a high area, an overflow pipe must be installed to
discharge condensate to a safe area.
- Overflow pipe should be installed at the side of the receiver.
•When discharging flash steam from the condensate receiver upward
through the pipe to outside atmosphere, be sure to install an overflow
pipe and discharge to a safe area such as a pit. Failure to install an
overflow pipe is dangerous, as condensate may spurt from the vent pipe
and could result in burns and other injuries.
•To minimize the discharge of flash steam from the overflow pipe, use an
overflow pipe with a U-shaped section about 12 in (300 mm) in length.
WARNING
Examples of Overflow Piping for Open Systems
12 in
(300 mm)
Condensate
Receiver
1) 2) Flash
Steam
Flash
Steam
Condensate
Receiver
To PowerTrap
To PowerTrap
Flash
Steam
Vent Pipe Vent Pipe
Overflow Pipe Overflow Pipe
Condensate
Condensate
Loop Seal
NOTE:
This sketch is for
explanation purposes
only and is not intended
as an installation design.
Pipe the discharge to a safe place such as a pit.
High temperature steam or hot water may
splash.
There is a possibility of condensed hot water dripping from vent pipe
outlet. Make sure to extend to where people do not pass.

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Explanation for Overflow Piping for Open Systems
1) If flash steam can be discharged from overflow pipe
Install overflow pipe and vent pipe separately.
2) If flash steam should not be released from overflow pipe (prevent flash steam
release)
Install overflow pipe and vent pipe separately. For overflow pipe, install loop
seal (approx. 300 mm (12 in)). Flash steam release from overflow pipe can be
prevented since water always accumulates at loop seal. Piping size should be
the same or larger than condensate inlet pipe.
NOTE: • There is a possibility of rust becoming clogged and/or corrosion since
water always present in the loop seal. The possibility is greater if the
piping diameter is too small (generally 25 mm (1 in) or smaller).
• If the loop seal becomes clogged, hot overflow water will blow from
vent pipe. Make sure to install vent pipe to lead to a safe place
• Do not install loop seal on the vent pipe
Contact TLV if neither 1) nor 2) above can be installed.
(8) Velocity at Outlet Piping
The PowerTrap uses the motive medium supply pressure to push the pumped
medium out of the trap.
•The GP10F can discharge approximately 30 liters (7.9 gallons) of pumped
medium for each discharge operation.
•The amount of time required for each discharge operation will be between 3 and
30 seconds, depending on the back pressure and the motive medium pressure.
This means that the instantaneous flow through the pumped medium outlet pipe
during the discharge operation is between 3.6 and 36 metric tonnes (950 and
9500 gallons) per hour.
•When a flowmeter is to be installed in the pumped medium outlet piping, it should
be selected to reflect the intermittent operation and should be sized to
accommodate the maximum and minimum instantaneous flow. Contact TLV for
details.
Sizing the Condensate Receiver/Reservoir
When selecting the receiver/reservoir for the PowerTrap, select from among the
following 3 conditions:
(1) When large quantities of flash steam are involved
(For open systems using steam)
a) Determine the amount of flash steam:
Amount of flash steam Fs = Q ×(hd’ −hh’)/r
Fs : amount of flash steam (kg/h) (lb/h)
Q : amount of condensate (kg/h) (lb/h)
hd’ : specific enthalpy (kJ/kg) (Btu/lb) of saturated condensate at
condensate inlet set pressure (P1)
hh’ : specific enthalpy (kJ/kg) (Btu/lb) of saturated condensate at
Receiver
P1
P2
Flash Steam
Condensate
P1
2

172-65378MA-03 (GP10F PowerTrap) 23 Apr 2019
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condensate receiver set pressure (P2)
r : specific enthalpy (kJ/kg) (Btu/lb) vaporization (latent heat of
steam) at condensate receiver set pressure (P2)
b) Determine the vent pipe diameter according to the amount of flash steam in
Vented Receiver Table - 1 shown on the next page.
c) Determine the overflow pipe diameter (Dop, refer to the figure below).
NOTE: The overflow pipe diameter should be at least as large as the condensate
inlet pipe diameter (Dcip, refer to the figure below).
d) Determine the minimum condensate receiver diameter (Dcr, refer to the figure
below) by selecting the largest value among those
from (i), (ii), and (iii) based on a condensate receiver
length of 1 m.
(i) is the overflow pipe diameter multiplied by 3 or
more.
(ii) is the minimum receiver diameter according to
the amount of flash steam in Vented Receiver Table
- 1 shown on the next page.
(iii) is the minimum receiver diameter according to
the amount of condensate in Vented Receiver Table
- 2 shown on the next page.
NOTE: Receiver length can be reduced by 50% when the motive pressure (Pm)
divided by the back pressure (Pb) is "2" or greater.
(When Pm÷Pb≥2)
ドレンヘッダー
Dop
Overflow
Pipe
Condensate
Receiver
Condensate
Inlet Pipe
Dcr ≥3 ×Dop
Dcr
D
cip
D
op
≥ D
cip

172-65378MA-03 (GP10F PowerTrap) 23 Apr 2019
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Vented Receiver Table - 1
(For atmospheric, open system installations)
Flash Steam
up to ~
kg/hour
Receiver
Diameter
(Length: 1 m (3.5 ft)
)
mm (in)
Vent Line
Diameter
mm (in)
Flash Steam
up to ~
lb/hour
Receiver
Diameter
(Length:3.5 ft)
in
Vent Line
Diameter
in
25 80 (3) 50 (3) 1 25 (1)
50 100 (4) 75 (4) 1½ 50 (2)
75 125 (5) 100 (4) 2 50 (2)
100 150 (6) 200 (6) 2½ 80 (3)
150 200 (8) 300 (8) 3 80 (3)
200 200 (8) 400 (8) 4 100 (4)
300 250 (10) 600 (10) 4 125 (5)
400 300 (12) 800 (12) 6 125 (5)
500 350 (14) 1000 (14) 6 150 (6)
700 400 (16) 1400 (16) 8 200 (8)
800 450 (18) 1600 (18) 8 200 (8)
1000 500 (20) 2000 (20) 8 200 (8)
1100 500 (20) 2200 (20) 10 250 (10)
1400 550 (22) 2800 (22) 10 250 (10)
1500 600 (24) 3000 (24) 10 250 (10)
Vented Receiver Table - 2
(For atmospheric, open system installations)
Amount of Condensate
kg/hour
Receiver Diameter
(Length: 1 m (3.5 ft))
mm (in)
Amount of Condensate
lb/hour
Receiver Diameter
(Length: 3.5 ft)
in
1000 or less 80 (3) 2200 or less 3
1500 100 (4) 3300 4
2000 125 (5) 4400 5
3000 150 (6) 6600 or less 6
6000 200 (8) 13000 8
10000 250 (10) 22000 10
NOTE: When amount of flash steam and condensate are between two values in the table, select
the larger value (one line below).

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(2) When flash steam is not involved
(For closed systems)
Determining the reservoir diameter and length
based on the amount of condensate:
Reservoir Table
(For equalized, closed system installations)
Amount of
Pumped
Medium
Reservoir Diameter (mm) & Length (m)
Amount of
Pumped
Medium
Reservoir Diameter (in) & Length (ft)
(kg/h)
40
50
80
100
150
200
250
(lb/h)
1½
2
3
4
6
8
10
300 or less
1.2m
0.7
500 or less
3.0 ft
2.0
400
1.5
1.0
700
4.0
2.5
1.0
500
2.0
1.2
0.5
1000
5.5
3.5
1.5
600
1.5
0.6
1200
4.5
2.0
1.0
800
2.0
0.8
0.5
1500
2.5
1.5
1000
1.0
0.7
2000
3.5
2.0
1500
1.5
1.0
3000
4.5
3.0
2000
2.0
1.3
0.6
4000
6.5
4.0
1.5
3000
2.0
0.9
0.5
5000
5.0
2.5
4000
1.2
0.7
6000
5.5
2.5
1.5
5000
1.4
0.8
0.5
7000
6.5
3.0
1.5
6000
1.7
1.0
0.6
8000
3.5
2.0
7000
2.0
1.2
0.7
9000
4.0
2.5
1.5
8000
1.3
0.8
10000
4.5
2.5
1.5
9000
1.5
0.9
12000
5.0
3.0
2.0
10000
1.7
1.0
14000
6.0
3.5
2.5
16000
6.5
4.0
2.5
18000
4.5
3.0
20000
1.5
1.5
NOTE: Reservoir length can be reduced by 50% when the motive pressure (Pm) divided by the
back pressure (Pb) is "2" or greater. (When Pm ÷ Pb≥2)
(3) When there are small quantities of flash steam and a large amount of condensate
(e.g., open systems pumping large amounts of super-cooled condensate)
Consult the sizing tables in sections (1) and (2) above.
Select the condensate receiver size based on the larger of (1) and (2).
Select the vent pipe diameter and overflow pipe diameter from (1).
Reservoir
P1
Condensate
PowerTrap

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•
Installing Several PowerTrap Units in Parallel
Refer to the figure below as a general guide for the piping when several PowerTrap
units are to be installed after the same pumped medium inlet pipe.
The size of the pumped medium inlet pipe, return line and exhaust pipe manifold is
determined by the number of PowerTrap units installed.
When specifications exist separately from the instruction manual, follow the
specifications.
Pumped Medium
Vent Pipe
Motive
Medium
Supply
Exhaust Pipe
TLV
GP10F
Pumped Medium Inlet Pipe
Pumped Medium Return Line
Receiver
TLV
GP10F TLV
GP10F
Exhaust Pipe
Exhaust Pipe
Motive
Medium
Supply
Motive
Medium
Supply
Medium
Return
(main line)
Filling Head
NOTE: This sketch is for explanation purposes
only and is not intended as an installation
design.
Overflow Pipe
Exhaust Pipe Manifold
Number of
PowerTrap
Units
Installed
Pumped Medium
Inlet Pipe Size
Pumped Medium
Return Line Size
Exhaust Pipe
Manifold Size
Overflow
Pipe Size Vent Pipe Size
mm (in) mm (in) mm (in)
2 125 (5) 80 (3) 40 (1½) Determine
overflow
pipe size
according to
“Sizing the
Cond
ensate
Receiver/
Reservoir”
See the
Vent Line
Diameter
column in
Table-1
3 150 (6) 100 (4) 50 (2)
4 200 (8) 100 (4) 65 (2½)
5 200 (8) 125 (5) 65 (2½)
6 200 (8) 125 (5) 80 (3)

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Installation and Maintenance Space
The maintenance space shown in the figure below should be provided to enable
disassembly, inspection and replacement of the PowerTrap.
BE CAREFUL to install
a union in the exhaust
piping in a position that
will allow the Cover Unit
to be lifted straight up
from the Body.
500 mm
(20”)
1500 mm (~60”)
500 mm
(20”)
1500 mm (~60” )
~400 mm (~15¾”)

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Operation and Periodic Inspection
• After all piping work has been completed in accordance with the
specific piping system designed when the decision to utilize the
PowerTrap was made, check once again to make sure that all pipe
connections have been tightened, gaskets have been inserted where
needed and all parts are securely installed.
• When beginning operation, make sure that the operator stays well clear
of the release area of the vent line and overflow piping.
At the start-up of operation, large quantities of condensate may flow,
causing the PowerTrap to momentarily overload. If this occurs in open
systems, hot condensate may spurt from the vent piping or overflow
piping and could result in burns, other injuries or damage to equipment.
WARNING
Install properly and DO NOT use this product outside the recommended
operating pressure, temperature and other specification ranges.
Improper use may result in such hazards as damage to the product or
malfunctions which may lead to serious accidents. Local regulations
may restrict the use of this product to below the conditions quoted.
CAUTION
When disassembling or removing the product, wait until the internal
pressure equals atmospheric pressure and the surface of the product
has cooled to room temperature. Disassembling or removing the
product when it is hot or under pressure may lead to discharge of fluids,
causing burns, other injuries or damage.
CAUTION
Be sure to use only the recommended components when repairing the
product, and NEVER attempt to modify the product in any way. Failure to
observe these precautions may result in damage to the product or burns
or other injury due to malfunction or the discharge of fluids.
CAUTION
Installation, inspection, maintenance, repairs, disassembly, adjustment and valve
opening/closing should be carried out only by trained maintenance personnel.
Operation
(1) Valve Operation
Refer to the open-system piping drawing in “Installation” on page 8 to become
familiar with the names and locations of the various valves.
If water hammer occurs, immediately cease operation and close any valves that are
operating.
a) Slowly open the valve on the exhaust pipe.
b) Slowly open the valve on the motive medium supply pipe.
Make sure that there is no sound of flow from the exhaust pipe or the pumped
medium inlet pipe.
c) Slowly open the valve on the pumped medium outlet pipe.
d) Slowly open the valve on the pumped medium inlet pipe.
When using a manual valve for venting air on a closed system, leave the valve
slightly open until the PowerTrap has cycled 2 or 3 times in order to release any
air inside the system, then close the valve.

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e) The PowerTrap operation is normal if it cycles intermittently; first exhausting the
motive medium to fill with pumped medium, then taking in motive medium to
force the pumped medium out.
•The interval of operation will vary greatly depending on the amount of pumped
medium inflow, the temperature, the motive medium (steam or gas) and the
motive pressure. (The interval of operation is considered to be the length of
time between the start of one discharge cycle and the start of the next
discharge cycle.)
The interval of operation Tc (s) can be roughly determined using the following
formula: Tc = 108,000/Q or Tc = 238,000/Qp
Q: amount of condensate (inflowing pumped medium) (kg/h)
Qp: amount of condensate (inflowing pumped medium) (lb/h)
•The GP10F can discharge approximately 30 liters (7.9 gallons) of pumped
medium for each discharge operation. The amount of time required for each
discharge operation will be between 3 and 30 seconds, depending on the back
pressure and the motive medium pressure.
(2) If an error such as a leak or water hammer occurs after beginning PowerTrap
operation, shut off the valves immediately in the following order:
valve on motive medium supply pipe →pumped medium inlet valve →pumped
medium outlet valve →valve on exhaust pipe
(3) Whenever any type of malfunction is suspected in the PowerTrap, refer to the
“Troubleshooting” section.
Periodic Inspection and Diagnosis
There are two types of periodic inspection: the visual inspection and the disassembly
inspection.
(1) Visual Inspection
•As a general rule, this inspection should be performed at least once every 3 months.
•Check the following items:
a) There should be no leakage from the PowerTrap or from any of the connections.
b) The PowerTrap unit should be operating cyclically (one indication being the
sharp, mechanical sound of the snap-unit operating at the transition between
the filling and the discharge parts of the cycle). Immediately after the end of the
discharge part of the cycle and during the filling part of the cycle, the sound of
flow in the exhaust pipe should be heard. During the pumping (discharge) part
of the cycle, flow in the motive medium supply pipe should be heard.
c) Pumped medium should not accumulate in the (steam-using) equipment, and
the temperature of the equipment should not be abnormally low.
d) For open systems, verify that an overflow pipe from the receiver is installed.
e) For open systems, no steam should be seen flowing out through the vent pipe.
f) There should not be any abnormal noise from the pumped medium outlet pipe
or the pumped medium recovery line when the PowerTrap operates.