44
GOVERNORS NOR
TH AMERICA
US
LOW PRESSURE GAS REGULATOR
|
DESCRIPTION AND OPERATION
|
REV. A
Operation, maintenance and warning manual
4.6 - SAFETY DEVICES
To avoid tripping of safety devices during normal service (when the utility has no anomalies), flushing purges of the down-
stream line should not be carried out with the reducer installed.
4.6.1 - SAFETY MEMBRANE
Tripping of the safety membrane (A) results in replacement of the regulator.
The safety membrane (A) is a device capable of limiting the leakage of gas into the atmosphere if the working membrane
(B) ruptures.
The tripping of the safety membrane (A) ensures gas leakage to the atmosphere of a maximum value of 30 l/h. Micro
leakage of gas into the atmosphere will enable detection of rupture of the working membrane (B).
B
A
Fig. 4.8. Safety membrane
Summary of Contents for 30051
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