No image available
No image available
Your request is being processed.
Planned Maintenance
 We are currently performing scheduled maintenance. Some site functions are impacted and may not work as expected. Thank you for your patience.
Fisher-P-P539A

Fisher™ Type P539A Pneumatic Actuator

Contact Us
Check Order Status

Product Description

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 4-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.

Features

  • Remotely Operate Emergency Shutoff Valves on Stationary Storage Tanks at Bulk Plants
  • Fusible Element Provides Thermal Release
  • Return Mechanism: Spring only?no air required

Specifications

Emergency Shutoff Valve End Connection Size and Style
1-1/4, 2 and 3-inch NPT
Actuator Pressure Limits
Minimum: 20 psig / 1,4 bar
Maximum: 40 psig / 2,8 bar
Recommended Operating Pressure: 20 to 25 psig / 1,4 to 1,7 bar
Temperature Capabilities
-40° to 150°F / -40° to 66°C
Approximate Weight
4.8 Pounds / 2 kg
Thermal Release Melt Point
212°F / 100°C

Documents & Drawings