TLV PowerTrap GP10L, Instruction Manual

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172-65043MA-02 (GP10L/GT10L PowerTrap ) 9 Mar 2004
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 P
1
> P
b
(when the inlet pressure (P
1
) 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 P
1
≤
P
b
for both the GP and GT models, 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) and (3) Pumped Medium Flow or Discharge
(exhaust step)
(2) Pumped Medium Supply
(intake step)
Check
Valve
Check Valve
Check Valve
Check Valve
Body
Float Steam
Trap
Cover
Exhaust Valve
(open)
Intake Valve
(motive medium)
(closed)
Pumped
Medium
Inlet Pipe
Pumped
Medium
Outlet Pipe
Exhaust Valve
(closed)
Intake Valve
(motive medium)
(open)