172-65318MA-04 (GP10/GT10/GP14/GT14 PowerTrap) 23 Nov 2018
10
Installation Procedure
Refer to the systems outlined in the “General Description” section on page 5 to select the
correct system and model (GT or GP) for the application. 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 and water. PowerTraps 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 (
3
/
4
in).
•
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 or nitrogen 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)
