Form No. 43539049
–16–
Oct 2013
NOTE:
Do not expose final stage piping to excessive heat or direct sunshine during the leak test. Pressure
build-up in the line due to heat may compensate for pressure loss due to leaks. This will prevent the gauge
reading from indicating system leaks.
WARNING: Gas Pressure Testing is to be performed only by qualified personnel.
CHECK GAS INLET (SUPPLY) PRESSURE:
1. Be sure the valve is in the “OFF” position before removing the pressure tap plug at the valve. Connect a
low-pressure test set (water manometer or dry gauge) to the 1/8” NPT Inlet Pressure Tap connection.
(Refer to Figures 9, 9a and 9b for each control valve type.) Turn the valve to the “ON” position. DO NOT
EXCEED THE PRESSURES SHOWN IN THE GAS PRESSURE TABLE.
2. Turn the valve back to the “OFF” position before removing the test set and replacing the plug. Repeat the
gas leak test at the plug.
FIGURE 9a
FIGURE 9
