Putting The Ratio Version Regulator Into Service - PIETRO FIORENTINI GOVERNOR 30051 Use And Maintenance Manual

8.4.3 - PUTTING THE RATIO VERSION REGULATOR INTO SERVICE

To commission the Ratio version regulator (B), proceed as shown in Tab. 8.48.:
Step Action
1 Partially open the downstream air vent valve when present.
2 Slowly open upstream shut-off devices (e.g. solenoid valves, OPSO slam-shut valve, etc.).
Wait for the downstream pressure to stabilise at the spring setting P2 indicated on the nameplate.
3
NOTICE!
For the values on the rating plate, please refer to section 2.8 'Applied rating plates' et seq.
Proceed as described in section 7.5.3 'Ratio Version Adjustments'.
NOTICE!
4
Turn the adjusting screw to calibrate the regulator by checking the gas outlet pressure with a
pressure gauge.
5 Close the air vent valve.
GAS
AIR
67
A
Fig. 8.21.
C
B
D
Commissioning (Ratio version)
LOW-PRESSURE GAS REGULATOR
Tab. 8.47.
| COMMISSIONING
Use, maintenance and warning manual
| REV. A
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