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Thermostatic Wax and Related Products


The principle of the elements

Thermostatic Element can transfer heat energy into mechanical energy. It has a function that can induce temperature change and rapidly automatically comes out mechanical movement. Because of having applied the thermal expansion material inside, so there is no any ambient influence when mechanical movement happens. It is a key part which has the advantages with all kinds of temperature regulating and control systems, such as wide temperature regulating range, exactly temperature control, simple structure, reliable capability, etc. It has been widely application in many fields such as automobile industry, building heating, sanitary ware, air-conditioner, industrial automatic control,? fire protection, household appliances, solar water heater, petrochemical industry, shipping, safeguard, aviation and space etc.

Thermostatic Element Structure Type


Diaphragm Type
Capusle Type
Piston Type
Operation Principle

The Thermostatic Wax that has been sealed in shell body induces expansion by a given temperature, and inner rubber seal part drives its handspike to move under expansion pressure to realize a transition from thermal energy into mechanical energy. The Thermostatic Wax brings an upward movement to its handspike, and automatic control of various function are realized by use of upward movement of handspike. The return of ?handspike is accomplished by negative load in a given returned temperature.

  • Small body size, occupied limited space, and its size and structure may be designed in according to the location where needs to work.
  • Temperature control is reliable and nicety
  • No shaking and tranquilization in working condition.
  • The element doesn��t need special maintenance.
  • Working life is long.
Main Technical Parameters
  • Stroke be confirmed by drawing and technical parameters
  • Stroke movement is relatives to the temperature range of the element, and the effective distance range is from 1.5mm to 20 mm.
  • Temperature control range of thermostatic element is between �C20 ~ 230��.
  • Lag phenomenon is generally 1 ~ 2��. Friction of each component part and lag of the component part temperature cause a lag phenomenon. Because there is a difference between up and down curve of traveling distance.
  • Loading force of thermostatic element is difference, it depends on its�� shell size.
We can offer technical support and help with making the thermostatic element.

How does it work

Temperature Cylinder

Water Mixing

Air Condition

Safty Switch


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