Fisher Bulk Storage and Transport Equipment
Fisher Type P539A Pneumatic Actuator
Fisher 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.
- Remotely Operate Emergency Shutoff Valves on Stationary Storage Tanks
- Fusible Element Provides Thermal Release