thermal actuator
thermal actuators

 

 

thermal actuators  
  thermal actuators  
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Click For Thermal Actuator Technical Information

Our thermal actuators are vailable in a variety of sizes and configurations, Vernatherm's thermal actuators may be applied in a variety of different applications because our sizes range from miniature to large & heavy duty units. Whatever the size, these fast acting thermal actuators, produce high forces, and long travel distances, enabling the effective control of your system without the need for any electrical power.

Our thermal expansion material blend gives us an edge over our competitor's standard operating temperatures. When you choose Rostra's thermal actuators, the customer is in complete control of what temperature range they recieve. You can choose any temperature range from 30F to 300F which is the largest selection available today.

The figure below shows a change in temperature that causes the thermo sensitive material to expand and contract. When the thermal actuator is expanding it applies pressure to the rubber plug which is forced into reduced diameters in the piston guide to acheive mechanical advantage. This extruding action pushes the piston which causes movement, or what we call "motion".

The expansion/contraction of these thermal actuators can be utilized to operate a valve, mechanical linkage, electric switch, or any other device. The plug and diaphragm type has clearly been proven to be the most reliable style for any application.

 

thermal actuators

The figure below shows a typical thermal actuator expansion curve. An expansion curve graphically displays an actuator's performance characteristics. Typical characteristics are "temperature range”, "working stroke”, "power stroke”, and "return stroke". Rostra Vernatherm has the capability to customize your actuator's characteristics to any value you need it to be. You can simply provide a performance curve and we can custom talor a thermal actuator to your desired performace.

thermal actuators

 

 
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