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Rotary piston vacuum pump is suitable for pumping air and other ordinary gases, when a gas ballast valve is used it can also pump condensable gases. The pump must be fitted with appropriate accessories if gas is rich in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil. The HGL, HG pump can be operated singly or as a backing pump combined with other high vacuum pump, such as diffusion pump and oil booster pump. It is widely used in the industry of vacuum coating, vacuum heat treatment, vacuum impregnation....... |
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Rotary vane vacuum pump is suitable for pumping air and other ordinary gases, when a gas ballast valve is used it can also pump condensable gases. The pump must be fitted with appropriate accessories if gas is rich in oxygen, explosive, corrosive to ferrous metal, chemical reactive with vacuum pump oil. The 2XZ rotary vane vacuum pump can be operated singly ...... |
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As mechanical type vacuum pump equipped with a pair of varying pitch screws in pump housing, LG series screw vacuum pump can realize the gas intake and exhaust by the synchronous rotation of the two screws in high speed
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The series ZJP roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant speed inside the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a pair of gear, which ensure these two rotors in certain relative positions. They are near to one anther and to the housing without actual contacting ,so lubrication is unnecessary in the working housing ...... |
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The series ZJ Roots vacuum pump is without overflow valve. The figure-of-eight rotors are counter-rotating at a constant speed inside the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a pair of gears, which ensure these two root ors in certain relative positions. They are near to one another and to the housing without actual contacting, so lubrication is unnecessary in the working housing. ...... |
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For the series SK、2SK、YK、and 2YK liquid ring vacuum pumps , multi-vance impeller is fixed eccentrically in the pump casing. When the vanes rotate,the liquid in the casing forms a liquid that is concentric with the pump casign under the certrifugal effect. The cubage between liquid and vanes have a periodic change, so the function of pumping be performed . Liquid ring vacuum pumps are of the features of low energy consumption and low noise. ......
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