YZW-type self-operated temperature control valve using liquid heat expansion and liquid incompressible principle to achieve automatic adjustment. The liquid inside the temperature sensor expands evenly and its control action is proportional. When the temperature of the controlled medium changes, the volume of the temperature-sensing liquid in the sensor expands or shrinks. Controlled medium temperature is higher than the set value, the temperature of the liquid expansion, pushing the valve down to close the valve to reduce the heat medium flow; charged media temperature is below the set value, the temperature of the liquid contraction, the return spring push valve Core open, increase the flow of heat medium. This article Keywords: control valve
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