172-65318MA-04 (GP10/GT10/GP14/GT14 PowerTrap) 23 Nov 2018
6
Operation
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.
CAUTION
(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, as shown in (1) below.
•
In the case of the GT, the main valve on the trap unit opens as the float rises.
When Pi > P
b
(when the inlet pressure (Pi) is greater than the back pressure (P
b
)),
the condensate passes through the outlet check valve and is discharged through
the condensate outlet pipe (normal trapping function).
•
When Pi
≤
P
b
for both the GP and the GT, the condensate is not discharged and
collects in the body of the unit.
(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, as shown in (2) below.
(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 and the status reverts to that shown in
(1) below.
(1) Condensate Inflow
(2) Condensate Discharge
Inlet Check
Valve
Outlet Check Valve
Outlet Check Valve
Inlet Check Valve
Body
Float
Trap Unit
Cover
Exhaust Valve
(Open)
Intake Valve
(motive medium)
(Close)
Push
Rod
Condensate
Inlet Pipe
Condensate
Outlet Pipe
Exhaust Valve
(Close)
Intake Valve
(motive medium)
(Open)
Condensate
Outlet Pipe
