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.
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