Thermal Static Drain Valve

The working principle of a thermal static drain valve is mainly to control the opening and closing of the drain valve by utilizing the temperature difference between steam and condensate. This type of drain valve typically includes a temperature sensitive element, such as a bellows, filled with a liquid that is prone to evaporation. When the temperature of the condensate is high, the saturation pressure of the liquid increases, causing the bellows to elongate axially, thereby closing the valve core and preventing steam leakage. When the temperature of the condensate drops, the saturation pressure of the liquid decreases, the bellows contracts, the valve hole is opened, and the condensate is discharged. This mechanism enables the drain valve to automatically adjust the discharge based on the temperature of the condensate, effectively preventing steam leakage while discharging non condensable gases such as condensate and air. The thermal static drain valve produced by Shanghai Meiyanyi Pump Valve uses temperature differences to control the drainage process, and has the characteristics of automatic adjustment, wide applicability, and flexible installation. It is a commonly used energy-saving drainage equipment in industrial steam pipelines.