hot sale double stage rotary vane vacuum pump
Min.Order Quantity: 1 Set/Sets hot sale double stage rotary vane vacuum pump
Supply Ability: 400~700 Set/Sets per Month hot sale double stage rotary vane vacuum pump
Payment Terms: L/C,T/T,
Price: Online consultation
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This pump is a two-stage high-speed oil seal rotary vane vacuum pump. It is equipped with air ballast valves. Its function is to fill the exhaust space with a certain amount of air when the valve is opened, thereby reducing the proportion of steam partial pressure in the total exhaust pressure. Because the partial pressure of steam is lower than that of saturated steam, which corresponds to the working temperature of the pump, steam can be discharged from the pump by filling air to avoid condensation of the steam in the pump oil and to prevent the oil from being emulsified by condensation steam, thus prolonging the useful lift. However, when the ballast valve is opened, the limit vacuum degree of the pump will decrease and the temperature of the pump will rise.
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