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Description:
When FireChek®
Senses excessive heat from a nearby fire,it immediately vents the pneumatic
actuator and closes the actuator air supply line. FireChek®
triggers quickly,securing pneumatically operated process line valves.
Because
FireChek® responds to heat,not flame,it offers dramatically
improved protection compared with conventional plastic tubing burn-through.It
shuts off the air supply line to prevent plant air from feeding oxygen
to a fire.
Features:
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
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.
Operation:
If FireChek® 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.
FireChekÕs® manual reset allows routine performance
testing for safety maintenance programs. A hot-air gun will quickly actuate
FireChek®. After cooling briefly, the FireChek®
can easily be reset without the use of tools, for continued protection.
See
it Work! Test with Heat Gun
| Resetting the Valve
(Quicktime Plugin Required)
Installation:
FireChek® installs easily between the pneumatic supply
and spring return actuator via two female threaded connections.
Materials:
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
Connections
1/4-18 NPT American Standard Tapered Pipe
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
Cv = 0.49
Overall Dimensions: Length = 2.59" |
Diameter = 1" | Weight = 0.482 lbs.
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