Installation Procedure - TLV PowerTrap GP14-B Manuel D'utilisation

Installation Procedure

Installation, inspection, maintenance, repairs, disassembly, adjustment and valve opening/closing
should be carried out only by trained maintenance personnel.
(1) 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. PowerTrap
that have been constructed for other specific fluids are not limited by this restriction.
(2) Motive Medium Supply Piping:
• The motive medium supply pipe diameter should be at least 20 mm (
• Install a 40-mesh or finer strainer on the PowerTrap motive medium supply pipe, as close to
the PowerTrap as possible, while allowing sufficient space for maintenance of the strainer.
Strainers should be angled in the 3 or 9 o'clock positions for horizontal installations.
• See "Specifications" on page 7 for the maximum motive medium inlet pressure.
• For Open Systems: Steam, compressed air, nitrogen or other non-flammable, non-toxic
fluids may be used as the motive medium.
• For Closed Systems: Use steam as the motive medium. Except in special cases, do no use
non-condensable gases such as air or nitrogen.
• When the motive medium is steam, if the application will require that the equipment be shut
down (non-operating) for periods of 2 months or longer, install piping connecting the motive
medium supply line to the receiver/reservoir pipe, being sure to install a drip leg on the
motive medium supply line, and a steam trap in the drip leg (between where it branches to
go to the PowerTrap and where it enters the receiver/reservoir pipe). (See item [St] in the
drawings on pages 8 and 9.)
This measure is not necessary when the motive medium is compressed air or nitrogen.
(3) Pressure Reducing Valve on the Motive Medium Supply Piping:
• When the supply pressure of the motive medium is greater than the maximum operating
pressure of the PowerTrap, install a TLV COSPECT series pressure reducing valve. Make sure
that the motive medium pressure is lower than the maximum operating pressure of the
PowerTrap. Use good piping practices when selecting the installation location for COSPECT.
In this case, be sure to install a safety valve between the pressure reducing valve and the
PowerTrap.
• When the supply pressure of the motive medium is less than the maximum operating pressure
of the PowerTrap, if a pressure reducing valve is to be installed to slow the speed of the flow,
the installation of a safety valve is not required.
• Install the pressure reducing valve as far away from the PowerTrap as possible.
When the motive medium pressure is less than 0.5 MPaG (72.5 psig, 5 barg): at
least 3 m (10 ft)
When the motive medium pressure is 0.5 MPaG or greater (72.5 psig or greater, 5
barg or greater): at least 3 m + 1 m for every 0.1 MPaG (1 barg) over 0.5 MPaG (5 barg)
10 ft + 1 ft for every 4.5 psig over 72.5 psig)
• The pressure setting on the pressure reducing valve should be between 0.05 and 0.15 MPa
(7 – 20 psi, 0.5 – 1.5 bar) higher than the back pressure.
When the discharge capacity of the PowerTrap is insufficient for the set motive pressure,
increase this set pressure even further.
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