Algas SDI TORREXX TX240, Operation & Maintenance Manual

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ASDI Operations and Maintenance – TX Models – P/N: 54629
6-38
Solenoid Valve Leak Test
1) Shut the outlet isolation valve. The inlet isolation valve should be open.
Start the vaporizer and allow it to heat up until the heaters shut off. This
allows any accumulated liquid in the vaporizer to be forced back toward
the supply tank.
2) Disconnect the vaporizer by shutting off the power at the disconnect.
Shut the inlet isolation valve. Cautiously bleed off any LPG pressure in
the vaporizer and outlet supply piping. When the pressure reaches no
pressure in the vaporizer, remove, and reinstall the pressure gauge in
the vaporizer and verify 0 pressure.
3) Open the inlet isolation valve. The solenoid valve is closed and you
should not have any pressure build up in the vaporizer. If pressure
increases in the vaporizer, the solenoid valve is leaking and needs to be
repaired or replaced.
Figure 15 – Solenoid Valve Leak Test Components
VAPOR DISCHARGE OUTLET
ISOLATION VALVE
SOLENOID VALVE
STRAINER
LIQUID INLET
ISOLATION VALVE
LIQUID IN
VAPOR OUT
FIRST STAGE
REGULATOR
VAPOR
PRESSURE
GAUGE
VAPORIZER
PRESSURE
GAUGE