TLV GT14M PowerTrap is a compact mechanical pump with a built-in steam trap designed for condensate removal and recovery. It is highly suitable for the drainage of medium capacity heat exchangers, flash steam recovery systems, and reservoirs, often operating under vacuum conditions. The GT model features a built-in trap function, making it suitable for use in instances where the inlet pressure may alternately be lower than or higher than the outlet pressure.

Features

• Handles high-temperature condensate without cavitation.
• No electric power or additional level controls required, hence INTRINSICALLY SAFE.
• Pump will operate with a low filling head (min. 350 mm).
• Easy, inline access to internal parts simplifies cleaning and reduces maintenance costs.
• High-quality stainless steel internals and hardened working surfaces ensure reliability.
• Compact design permits installation in a limited space.

Specifications

Specification	Value
Body Material	Cast Iron (FC250) / Cast Steel (A216 Gr.WCB)
Pumped Medium Inlet & Outlet	DN 40 × DN 40 (Flanged)
Motive Medium & Pump Exhaust	1/2" (Screwed)
Maximum Operating Pressure (PMO)	13 barg (Cast Iron) / 14 barg (Cast Steel)
Maximum Operating Temperature (TMO)	200 °C (Cast Iron) / 220 °C (Cast Steel)
Motive Medium Pressure Range	0.3 – 13 barg (Cast Iron) / 0.3 – 14 barg (Cast Steel)
Maximum Allowable Back Pressure	0.5 bar less than motive medium pressure used
Volume of Each Discharge Cycle	Approx. 12.5 liters
Motive Medium	Saturated Steam
Pumped Medium	Steam Condensate, Water

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.

Configuration and Materials

No.	Description	Material	DIN	ASTM/AISI
1	Body	Cast Iron FC250 / Cast Steel	0.6025 / 1.0619	A126 Cl.B / A216 Gr.WCB
2	Cover	Cast Iron FC250 / Cast Steel	0.6025 / 1.0619	A126 Cl.B / A216 Gr.WCB
3	Cover Gasket	Graphite Compound	—	—
4	Float	Stainless Steel SUS316L	1.4404	AISI316L
5	Snap-action Unit	Stainless Steel	—	—
6	Motive Medium Intake Valve Unit	Stainless Steel SUS440C / SUS420F	1.4125 / 1.4028	AISI440C / AISI420F
7	Exhaust Valve Unit	Stainless Steel SUS440C / SUS420F	1.4125 / 1.4028	AISI440C / AISI420F
8	Steam Trap Unit	Stainless Steel	—	—
9	Inlet Check Valve CKF5M	Stainless Steel SUS304	1.4301	AISI304
10	Outlet Check Valve CKF3M	Cast Stainless Steel A351 Gr.CF8	1.4312	—

Application and Operation

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: the closed system and the open system.

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 (normal trapping function).
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, reverting to the filling status.

Installation Guidelines

Open System Piping

Closed System Piping

TIP

Only TLV check valves supplied with PowerTrap should be used; proper discharge capacity cannot be guaranteed with other check valves. The CKF5M is a swing type check valve for the condensate inlet and must be installed with the "UP" mark pointing upwards. The CKF3M is a disc check valve for the condensate outlet and can be installed in any orientation.

Reservoir Sizing (Closed Systems)

The reservoir must have a capacity sufficient to store the condensate produced during the PowerTrap operation and discharge. When flash steam is not involved, refer to the following table to determine the reservoir pipe diameter and length based on the amount of condensate:

Amount of Condensate (kg/h)	Reservoir Diameter 100 mm	Reservoir Diameter 150 mm	Reservoir Diameter 200 mm	Reservoir Diameter 250 mm
1000	0.7 m	-	-	-
2000	1.3 m	0.6 m	-	-
4000	-	1.2 m	0.7 m	-
6000	-	1.7 m	1.0 m	0.6 m
8000	-	-	1.3 m	0.8 m
10000	-	-	1.7 m	1.0 m

Note: Reservoir length can be reduced by 50% when the motive medium pressure divided by back pressure equals 2 or greater.

Maintenance and Disassembly

DANGER

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.

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.

Periodic inspection should be performed at least once every 2 years. Check that the snap-action moves up and down smoothly, the float is not damaged, and there is no foreign matter sticking to the shafts and levers. Always replace the body and cover gaskets with new gaskets when reassembling.