172-65043MA-02 (GP10L/GT10L
PowerTrap
) 9 Mar 2004
10
(2) Motive Medium Supply Piping:
!"
The motive medium supply pipe diameter should be at least 15 mm (½”).
!"
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.
!"
The maximum motive medium inlet pressure is 1.05 MPaG (150 psig, 10.5 barg).
!"
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 or some other such condensable gas 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:
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When the motive medium pressure is greater than 1.05 MPaG (150 psig, 10.5
barg), install a TLV
COSPECT
Series pressure reducing valve in order to reduce
the motive medium pressure to the
PowerTrap
. Use good piping practices when
selecting the installation location for
COSPECT
.
Be sure to install a safety valve between the pressure reducing valve and the
PowerTrap
.
!"
When the motive medium pressure is less than 1.05 MPaG (150 psig, 10.5 barg),
if a 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 / 0.1 MPaG (1 barg) over 0.5 MPaG
(5 barg) (10 ft + 1 ft / 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.
Summary of Contents for PowerTrap GP10L
Page 36: ......
