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Thermally activated Emergency Shutdown Valves (ESDs) are critical components in refinery, terminal and distribution safety systems. Thermal activated shutoffs work like fuses in the piping that carries extracted fuels. When a fire occurs, the fuel flow is shut down, preventing the fuel from feeding the fire. The Thermally activated Emergency Shutdown Valves (ESDs) include:
Assured Automation's 150F and 300F Flanged Ball Valves offer a unique design that is ideal for process and petrochemical applications.
150F/300F Series Flanged Ball Valves feature a floating ball and protected seat design, open and close locking device for position safety lockout (on manual valves), spiral wound body gasket with secondary metal to metal seal, O-ring backed seat and O-ring reinforced stem packing.
FM approved FireChek® thermal exhaust valve blocks air supply and opens actuator exhaust port allowing valve to close when heat is detected. The FireChek® is resettable and field testable. When the thermal shutoff senses temperatures above the shape memory alloy's actuation level, the shape memory element simultaneously vents pneumatic actuator air pressure and closes upstream supply pressure. A manual reset allows routine performance testing for safety maintenance programs.
The F Series pneumatic actuators offer a simple and cost effective solution for use on quarter turn (90 degree) ball valves. On ESD series valve assemblies the actuator is operated by an explosion proof solenoid valve.