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Working Principle and Capabilities: The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continual velocity within the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in particular relative positions. They may be near to one another and also to the housing devoid of actual contacting, so lubrication is unnecessary inside the doing work housing. The very carefully balanced operating components and high precision bevel wheels ensue the pump be operated stably and continuously beneath the affliction of high-pressure distinction. Dynamic seal part employs our patent technology and imported oil seals, the vibration volume of shaft on the shaft seals is managed to much less than 0.02mm. A gravity valve is put in among the suction and exhaust a part of the pump. The perform of your gravity valve is as follows, once the pressure variation among the suction and exhaust aspect is above the weight of the valve, the valve opens instantly, which tends to make the pressure variation usually preserve in a fixed controllable value, the worth would be the allowable highest pressure big difference to be sure the pump work generally and so that in truth, the roots vacuum pump with overflow valve is often a type of overload self-protective pump. Series SYF roots vacuum pump with overflow valve has substantially higher velocity at fairly lower inlet stress and it is possessed overload self-protective perform. Since it can be a pump of dry clearance seal development, if a specific pumping speed charge 15 and an greatest vacuum should be obtained, it is actually important to supply a reduced inlet pressure for lowering the back movement, thus, a pump have to be backed in use, roots vacuum pump should be began soon following its inlet stress reaches a permissible value for economization. It is actually permit to pick distinctive varieties of pump as the backing pump for factual specifications, such as oil seal pump and liquid ring vacuum pump. When pumping the gas containing substantial volume of vapor, the liquid ring vacuum pump could be the excellent backing pump.

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