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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
Overview
FireChek
By Itself
FireChek
with Quick Exhaust
High Flow Pilot Valve
with FireChek
Solenoid Operated High Flow
Pilot Valve with FireChek
FireChek Thermal Shutoff Valves


FireChek Valves with Quick Exhaust

When the standard FireChek® valve does not vent the air fast enough for a quick return to the failsafe position, it can be combined with a quick exhaust valve that increases the exhaust Cv significantly.

Installation

FireChek® valves with Quick Exhaust install easily between the pneumatic supply and spring return actuator via 1/4" NPT threaded connections.



FireChek with Quick Exhaust Installed

FireChek Valve By Itself

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

Related Articles

Performance Specifications

  • Actuation time:
    25 seconds or less at a temperature rise rate of 30°F/min
  • Actuation Temperature:
    135, 150, or 165°F
  • Maximum Working Control Pressure:
    125 PSIG
  • Fill and Discharge Capacity:
    1 liter of air in under 1 second at 125 PSIG
  • Inlet Cv: 0.49
  • Exhaust Cv:
    1/4 x 3/8 = 3.3;
    1/2 x 3/4 = 8.8

Material

  • MEMRY® Shape Memory Alloy Actuator and Sensor
  • DELRIN® Thermal Insulators
  • BUNA-N O-rings
  • 300 Series SS Body Cover, Reset, Shuttle Cap, Pin, and Bias Spring
  • SS Quick Exhaust Housing with FKM seals and CR (Neoprene) coated nylon flapper

Connections

  • 1/4-18 NPT American Standard Tapered Pipe

Operation

  • see below

Normal Operation


Air flows through FireChek® Valve and into the spring return actuator.

Emergency Operation


Air supply is cut off by the FireChek® Valve and
Quick Exhaust valve diverts exhaust through
exhaust port which is larger than the inlet.
buy a FireChek Series Thermal Shut Off Valve

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