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We Make Valve Automation Easy
We Make Valve Automation Easy

FireChek® FC4 Series Heat Activated Shut-Off Valves

Testable, Resettable, Self-Activating, Easily Retrofit
Complete Series
By Itself
with Quick Exhaust
High Flow Pilot Valve
with FireChek
Solenoid Operated High Flow
Pilot Valve with FireChek
FireChek Thermal Shutoff Valves

FM Approved*
FM Approval through Memry Corp.

FireChek Valves

When the FireChek® valve senses excessive heat from a nearby fire, it immediately vents the pneumatic actuator and closes the actuator air supply line. FireChek® valves trigger quickly, securing pneumatically operated process line valves. Because FireChek® valves respond to heat, not flame, they offer dramatically improved protection compared with conventional plastic tubing burn-through. They shut off the air supply line to prevent plant air from feeding oxygen to a fire.

Overview Video

Features & Benefits

  • Rapidly responds to temperature rise, NOT flames
  • Vents actuator air pressure
  • Closes actuator air supply line
  • Needs no power source, self activates
  • Compatible with ALL pneumatic actuators
  • No contact with process fluids
  • Easy to test and reset
  • Reliable, intrinsic triggering
  • Easily retrofit, installs in minutes
  • Valve Made in the USA


If a FireChek® valve senses temperatures above the shape memory alloy's actuation temperature, the shape memory element simultaneously vents pneumatic actuator air pressure and closes upstream supply pressure. FireChek® valves' manual reset allows routine performance testing for safety maintenance programs. A hot-air gun will quickly actuate a FireChek® valve. After cooling briefly, the FireChek® valve can easily be reset without the use of tools, for continued protection.
View an illustrated diagram of
the FireChek® valve operation.

Shape Memory Alloy Actuator

The shape memory element senses the ambient temperature and, through a phase induction change, rapidly produces the force and motion to operate FireChek®. The element is 100% reliable because the shape memory effect is intrinsic to the alloy. Shape memory alloys have performed successfully for years in military, industrial, and consumer product applications.

buy a FireChek Series Thermal Shut Off Valve
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Please contact us to verify any information that is critical to your application..