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Products > BALLAST > Suzhou Doctor Pump Co.,Ltd | Similar Products
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2XZ Series Double Stage Rotary Vane Vacuum Pumps

2XZ Series Double Stage Rotary Vane Vacuum Pumps
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 ...

XD Series Single Stage Rotary Vane Oil Sealed Vacuum Pumps

XD Series Single Stage Rotary Vane Oil Sealed Vacuum Pumps
ballast valve is installed on the vacuum pump. 3. If pumping the gases containing dust particles, the dust filters can be installed in front of the vacuum pump. 4. If pumping the corrosive gases, the ...
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