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P539A PNEUMATIC ACTUATOR

ID: P539

FISHER P539A PNEUMATIC ACTUATOR FOR N550/N551 SERIES SNAPPY JOE EMERGENCY SHUTOFF VALVES

Pressure Source: Air or Nitrogen

System Pressure Limits: Min: 20 psig; Max: 40 psig; Recommended: 20 to 25 psig

Temperature Limits: -40 to 150°F

Return Mechanism: Internal Spring, no air

Melt Point: 212°F

Details

Type P539A pneumatic actuator permits opening and closing Fisher N550/N551 Series Snappy Joe™ emergency shutoff valves (ESVs) both at the valve with the use of a pneumatic 3-way valve and from a remote location. The actuator opens the valve when pressure is applied. Upon loss of pressure, the N550/N551 Series closes, assisted by the spring in the pneumatic actuator.

Specifications:

Pressure Source: Air or Nitrogen
System Pressure Limits: Min: 20 psig; Max: 40 psig; Recommended: 20 to 25 psig
Temperature Limits: -40 to 150°F
Return Mechanism: Internal Spring, no air
Melt Point: 212°F