Product Name: Fisher P539A Pneumatic Actuator Product Brand: Fisher Product Code: P539A Product Artikel: Fisher P539A Pneumatic Actuator
Fisher™ Type P539A Pneumatic Actuator 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
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