Hot Sale High Efficiency Rotary Vacuum Pump price
Min.Order Quantity: 1 Set/Sets Hot Sale High Efficiency Rotary Vacuum Pump price
Supply Ability: 400~700 Set/Sets per Month Hot Sale High Efficiency Rotary Vacuum Pump price
Payment Terms: L/C,T/T,
Price: Online consultation
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This type of pump is double stage high speed oil sealed rotary vane vacuum pump. It is equipped with gas-ballast valve. Its function is to fill the exhaust space with certain amount of air ,when the valve is open ,so to reduce the proportion of the partial pressure of vapor in the total discharge pressure .As the partial pressure of vapor is lower than that of the saturated vapor pressure corresponding to the working temperature of the pump, vapor can be discharged from the pump with the filled air in order to avoid condensation of vapor in the pump oil and to prevent oil from emulsifying by the condensed vapor so as to prolong the useful lift of oil .However the ultimate vacuum of the pump shall drop ,and the temperature of the pump shall rise when the gas-ballast valve is open.
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