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Sealed in a casing thermal expansion of the material, after exposure to the set temperature sensing, expansion, under the effect of inflation pressure, the element within the rubber seal to promote and element mobile push rod. Heat energy into mechanical energy, and the element push rod to produce a displacement direction, using the element displacement of push rod to realize various functions of automatic control. Element is returned after the set temperature drop of push rod return spring.
three way thermostatic mixing valve element 2117169