TLV GT14L PowerTrap is a compact mechanical pump with a built-in steam trap designed for a wide range of applications, including the drainage of medium capacity heat exchangers, flash steam recovery systems, and reservoirs often operating under vacuum conditions. The GT model features an integrated steam trap function, making it suitable for use in instances where the inlet pressure may alternately be lower than or higher than the outlet pressure.

It handles high-temperature condensate without cavitation and requires no electric power or additional level controls, making it intrinsically safe. The pump operates with a low filling head (minimum 300 mm) and features an inline design for easy access to internal parts, simplifying cleaning and reducing maintenance costs. High-quality stainless steel internals and hardened working surfaces ensure long-term reliability.

WARNING

Install properly and DO NOT use this product outside the recommended operating pressure, temperature, and other specification ranges. Improper use may result in hazards such as damage to the product or malfunctions which may lead to serious accidents.

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.

Operation Cycle

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.
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, 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 state.

Configuration and Materials

No.	Part Name	Material	DIN	ASTM/AISI
1	Body	Cast Iron FC250 / Cast Steel A216 Gr.WCB	0.6025 / 1.0619	A126 Cl.B / -
2	Cover	Cast Iron FC250 / Cast Steel A216 Gr.WCB	0.6025 / 1.0619	A126 Cl.B / -
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 (Valve) / SUS420F (Seat)	1.4125 / 1.4028	AISI440C / AISI420F
7	Exhaust Valve Unit	Stainless Steel SUS440C (Valve) / SUS420F (Seat)	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	-

Installation Piping Examples

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.

Open System Piping (Steam System Example)

INFO

For Open Systems: Steam, compressed air, or nitrogen may be used as the motive medium. An overflow pipe should be installed at the side of the receiver to discharge condensate to a safe area if venting flash steam to a high area.

Closed System Piping (Steam System Example)

INFO

For Closed Systems: Use steam as the motive medium. Except in special cases, do not use non-condensable gases such as air or nitrogen. The exhaust pipe must be connected to the top of the reservoir.

Dimensions and Capacity

Weight:

• Cast Iron: 56 kg
• Cast Steel: 61 kg

TIP

A check valve must be installed at both the pumped medium inlet and outlet. To achieve the rated capacities with the standard GT14L configuration, TLV check valves CKF5M for inlet and CKF3M for outlet must be used.

Periodic Inspection

There are two types of periodic inspection: the visual inspection and the disassembly inspection.

• Visual Inspection: As a general rule, this inspection should be performed at least once every 3 months. Check for leakage, ensure cyclic operation (sharp mechanical sound of the snap-unit), and verify that pumped medium does not accumulate in the equipment.
• Disassembly Inspection: As a general rule, this inspection should be performed at least once every 2 years. Check the snap-action movement, valve shafts, float condition, and ensure no foreign matter is sticking to the internal mechanisms.