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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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