December 8, 2020

Operating Principle and Capabilities:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a consistent velocity within the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which guarantees these two rotors in particular relative positions. They are really close to to each other and to the housing with no real contacting, so lubrication is needless during the functioning housing. The thoroughly balanced operating parts and substantial precision bevel wheels ensue the pump be operated stably and continuously under the affliction of high-pressure difference. Dynamic seal portion use our patent technology and imported oil seals, the vibration level of shaft on the shaft seals is managed to significantly less than 0.02mm.
A gravity valve is put in between the suction and exhaust a part of the pump. The function with the gravity valve is as follows, when the pressure difference in between the suction and exhaust portion is in excess of the weight of the valve, the valve opens automatically, which helps make the stress difference usually continue to keep in the fixed controllable value, the worth will be the allowable highest strain variation to guarantee the pump get the job done ordinarily and in order that in truth, the roots vacuum pump with overflow valve is usually a kind of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably larger velocity at somewhat decrease inlet strain and it’s possessed overload self-protective perform. Because it is really a pump of dry clearance seal development, if a specific pumping speed fee and an greatest vacuum need to be obtained, it’s important to provide a reduced inlet stress for reducing the back flow, for that reason, a pump must be backed in use, roots vacuum pump needs to be started quickly just after its inlet pressure reaches a permissible worth for economization.
It is actually allow to select different sorts of pump as the backing pump for factual needs, such as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing massive volume of vapor, the liquid ring vacuum pump is definitely the best backing pump.

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