The versatility of thermal actuator technology has led to its implementation in a variety of unique Aerospace & Defense applications. Combining straightforward design and reliable performance, our technology is often the ideal solution for particularly remote, original, and extreme design challenges. 

Each of our thermal actuator valves are powered by our exclusive Thermoloid® paraffin wax actuator, precisely blended to produce a controlled volume change and useable stroke in response to a narrow range of temperature variations.

When the thermal actuator is in its “cold position” the Thermoloid® wax is solid, and the piston is retracted. Once the temperature increases to within the valve’s pre-determined active range, the wax changes into its liquid phase, undergoing thermal expansion and increasing in volume. This expansion extends the piston, producing usable stroke and putting the actuator into its “hot position.” The piston can then act upon a valve stem, lever or any other mechanical device requiring this type of movement.

Thermal actuators convert temperature change into a mechanical force to push/pull, open/close or move a load. The temperature change causes the wax to change its phase which occurs over a narrow and customizable temperature range, typically within 10-15°F, but can be modified to suit a variety of applications. Due to the non-compressible nature of the wax this motion produces a significant amount of force.