The TLV PowerTrap GP14-B is a mechanical pump used to discharge liquid from vacuum-pressure or low-pressure areas to high-pressure areas, or from lower to higher elevations. It features an integrated pumping function that can eliminate and pump out condensate even if it cannot be discharged due to very low supply steam pressure because of reduced load in the steam-using equipment (a phenomenon known as 'stall'). This model is suitable for both closed and open delivery systems.

Operation

WARNING

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.

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, thus discharging the condensate in the unit through the outlet pipe.
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.

Specifications

DANGER

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 will occur. Freezing may damage the product, leading to fluid discharge, which may cause burns or other injury.

Specification	Value
Motive Medium Pressure Range	0.03 - 1.4 MPaG (5 - 200 psig)
GP14-B (Cast Iron in Europe)	0.03 - 1.3 MPaG (5 - 185 psig)
Maximum Allowable Back Pressure	0.05 MPa (7 psi) less than motive medium pressure used (but not to exceed 1.05 MPaG / 150 psig)

Note: Maximum allowable pressure (PMA) and maximum allowable temperature (TMA) are PRESSURE SHELL DESIGN CONDITIONS, NOT OPERATING CONDITIONS.

System Configuration

The GP14-B supports both Closed and Open systems.

Type of System	Closed System	Open System
Benefits	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 (approx. 1 m).	Separate steam trap required for each piece of equipment. Requires venting pipe to discharge flash steam.

Open System Piping Example

NOTE: This sketch is for explanation purposes only and is not intended as an installation design.

It is necessary to install a condensate receiver for storing condensate during pumping, as condensate cannot enter the PowerTrap while it is discharging.

Closed System Piping Example

If the pressure at the PowerTrap inlet exceeds the pressure at the PowerTrap outlet, make sure to install a steam trap at the PowerTrap outlet. Steam will blow if no steam trap is installed.

Installation Considerations

WARNING

Use hoisting equipment for heavy objects (weighing approximately 20 kg or more). Failure to do so may result in back strain or other injury if the object should fall.

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 – 1.0.

Motive Medium Supply Piping

• The motive medium supply pipe diameter should be at least 20 mm (3/4").
• Install a 40-mesh or finer strainer on the motive medium supply pipe, as close to the PowerTrap as possible.
• For Open Systems: Steam, compressed air, nitrogen or other non-flammable, non-toxic fluids may be used.
• For Closed Systems: Use steam as the motive medium. Except in special cases, do not use non-condensable gases such as air or nitrogen.

Exhaust Piping

• The exhaust pipe diameter should be at least 25 mm (1").
• The exhaust pipe should be connected to the top of the receiver/reservoir.
• If the exhaust piping height exceeds 3 m (10 ft) and steam is used as the motive medium, condensate must be drained from the exhaust pipe.

Velocity at Outlet Piping

• The GP14-B can discharge approximately 30 liters (8 U.S. gal) of pumped medium for each discharge operation.
• The amount of time required for each discharge operation will be between 3 and 30 seconds.
• The instantaneous flow through the pumped medium outlet pipe during the discharge operation is between 4 and 40 metric tonnes (1,060 and 10,600 U.S. gal) per hour.