83
GOVERNORS NOR
TH AMERICA
LOW PRESSURE GAS REGULATOR
|
COMMISSIONING
|
REV. A
US
Operation, maintenance and warning manual
8.4.3 - COMMISSIONING OF THE RATIO VERSION REGULATOR
To commission the Ratio (B) version regulator, proceed as shown in Tab. 8.53.:
Step
Operation
1
Partially open the downstream vent tap when present.
2
Slowly open upstream shutoff devices (e.g., solenoid valves, OPSO block valve, etc.).
3
Wait for the downstream pressure to stabilize at the spring setting P2 indicated on the plate.
Refer to Section 2.8 "Identification plates applied" et seq. for the values on the identification
plate.
4
Proceed as indicated in Section 7.5.3 “Ratio version adjustments”.
Act on the setting screw to calibrate the regulator by checking the gas outlet pressure with a
pressure gauge.
5
Close the vent tap.
Tab. 8.53.
GAS
AIR
A
B
C
D
Fig. 8.28. Commissioning (Ratio version)
Summary of Contents for 30051
Page 98: ...TM0061USA ...
