TLV GT10L is a compact mechanical pump with a built-in steam trap designed for a wide range of applications, including the drainage of low-capacity heat exchangers, flash steam recovery systems, and reservoirs that often operate under vacuum conditions. The PowerTrap series is used to discharge liquid from vacuum-pressure or low-pressure areas to high-pressure areas, or from lower to higher elevations.

The GT model features an additional steam trap function, making it suitable for use in instances in which the inlet pressure may alternately be lower than or higher than the outlet pressure. The GP model is a mechanical pump without the built-in trap.

Features

1. Handles high-temperature condensate without cavitation.
2. No electric power or additional level controls required, hence intrinsically safe.
3. Pump will operate with a low filling head (min. 300 mm).
4. Easy, inline access to internal parts simplifies cleaning and reduces maintenance costs.
5. High-quality stainless steel internals and hardened working surfaces ensure reliability.
6. Compact design permits installation in a limited space.

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.

Application Systems

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

Type of System	Closed System	Open System
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
Notes	- Only one piece of equipment possible per system - Equipment has minimum height requirement to ensure condensate flows naturally	- Separate steam trap required for each piece of equipment - Requires venting pipe to discharge flash steam to atmosphere
Model	GT10L / GT14L / GT14M (Mechanical pump with built-in trap)	GP10L / GP14L / GP14M (Mechanical pump)

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 and the float rises. In the case of the GT, the main valve on the trap unit opens as the float rises. When the inlet pressure is greater than the back pressure, the condensate passes through the outlet check valve and is discharged.
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, discharging the condensate.
3. As a result of the condensate being discharged, the water level drops and the float descends. When the float reaches its low level, the push rod moves down quickly, opening the exhaust valve and closing the intake valve.

Configuration

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

Installation Piping Examples

Open System Piping (Steam System Example)

Closed System Piping (Steam System Example)

INFO

In closed system applications, the motive medium must be compatible with the liquid being pumped. If a non-condensable gas such as air or nitrogen is used as the motive medium, please consult TLV for assistance.

Dimensions