77
GOVERNORS NOR
TH AMERICA
77
GOVERNORS NOR
TH AMERICA
LOW PRESSURE GAS REGULATOR
|
INSTALLATION
|
REV. A
US
Operation, maintenance and warning manual
7.5.5 - DUAL CUT VERSION ADJUSTMENTS
In case it is necessary, change the calibration values of the Dual Cut version regulator, proceed as shown in Tab.7.49:
Step Operation
Equipment required
1
Remove the top cap (A) of the downstream regulator.
-
2
Turn the ring nut (B) of the downstream regulator:
• clockwise to increase the downstream pressure;
• counterclockwise to decrease the downstream pressure.
Hexagonal wrench CH 11 mm
3
Replace the top cap (A) of the downstream regulator.
-
Tab. 7.49.
A
B
Fig. 7.25. Operating pressure adjustment (Standard version)
Small calibration variations of ±10% from the value on the identification plate (see Section 2.8 "Identifica
-
tion plates applied") can be made only by observing the spring ranges in the tables in Chapter 10 ("Cali
-
bration tables").
Summary of Contents for 30051
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