The TLV GP10L PowerTrap is a mechanical pump designed to discharge liquid from vacuum-pressure or low-pressure areas to high-pressure areas, or from lower to higher elevations. It is primarily used for condensate recovery on open systems. The related GT10L model features an additional built-in steam trap function, making it suitable for closed systems where the inlet pressure may alternately be lower or higher than the outlet pressure.

WARNING

Install properly and DO NOT use this product outside the recommended operating pressure, temperature, and other specification ranges. Use only under conditions in which no freeze-up or water hammer will occur. Freezing or water hammer may damage the product, leading to fluid discharge, which may cause burns or other injury.

Application Systems

There are two main types of delivery systems (piping methods): the closed system and the open system. The selection of the GP model or GT model is determined by the system type.

Type of System	Closed System	Open System
System Overview	Condensate Recovery Line directly connected	Discharge to Atmosphere via Vent Pipe and Receiver
Benefits	No flash steam discharge. Use with vacuum equipment possible (providing sufficient differential pressure).	Collection of condensate from multiple equipment. Can be used where trap is lower than receiver.
Notes	Only one piece of equipment possible per system. Minimum height requirement ensures condensate flows naturally by gravity (approx. 0.3 m or 0.5 m).	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 (GT10L)	Mechanical pump (GP10L)

Operation

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. In the case of the GT, the main valve on the trap unit opens as the float rises, discharging condensate normally when inlet pressure is greater than back pressure.
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 to become greater than the back pressure, forcing the outlet check valve open and discharging the condensate.

3. As a result of the condensate 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 valve, allowing the cycle to repeat.

Specifications

Model	Max. Operating Pressure (PMO)	Motive Medium Pressure Range	Max. Allowable Back Pressure
GP10L, GT10L	1.05 MPaG (150 psig)	0.03 - 1.05 MPaG (5 - 150 psig)	0.05 MPa less than motive medium pressure used
GP14L, GT14L, GP14M, GT14M	1.4 MPaG (200 psig)	0.03 - 1.4 MPaG (5 - 200 psig)	0.05 MPa less than motive medium pressure used

Configuration

The GP10L and GT10L models utilize screwed connections (Rc(PT), NPT, or BSP) for the condensate inlet and outlet.

No.	Part Name	No.	Part Name
1	Body	7	Snap-action Unit
2	Cover	8	Intake Valve Unit
3	Cover Gasket	9	Exhaust Valve Unit
4	Cover Bolt	10	Plug
5	Nameplate	11	Trap Unit (GT10L only)
6	Float

Installation Guidelines

Fluids that can be discharged through the PowerTrap are limited to steam condensate and water. A 40-mesh or finer strainer should be installed on both the pumped medium inlet pipe and the motive medium supply pipe.

• For Open Systems: Steam, compressed air, or nitrogen may be used as the motive medium.
• For Closed Systems: Use steam as the motive medium. Except in special cases, do not use non-condensable gases such as air or nitrogen.

Open System Piping

INFO

A condensate receiver is necessary for storing condensate during pumping in open systems. If the exhaust line must discharge to the atmosphere, a sound level of approximately 90 dB may be emitted for two to three seconds. A silencer may be installed if soundproofing is necessary.

Closed System Piping