Advertisement
ANDERSON GREENWOOD TYPE 91 AND 94 PILOT OPERATED SAFETY RELIEF VALVES
INSTALLATION AND MAINTENANCE INSTRUCTIONS
4.6 Definitions
Set pressure is defined as that pressure where the dome pressure is 15% of the supply pressure.
Crack pressure is defined as the supply pressure were gas flow begins at the pilot exhaust.
Adjustable pressure regulator
(relieving type)
Supply pressure gauge
Supply pressure
FIGURE 6
½" (1.5 mm)
FNPT ports
Supply port
Supply
Vent
Accumulator
½" (1.5 mm) Pipe
Optional bench set-up
Pilot only
Recommended test set-up
Pressure adjustment
Pilot valve to be set
Blowdown adjustment
Dome pressure gauge
Pressure adjustment
Blowdown adjustment
Dome pressure gauge
9
Advertisement
