December 8, 2020

Working Principle and Options:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continuous speed 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 specified relative positions. They can be close to to each other and to the housing with no real contacting, so lubrication is needless during the doing work housing. The cautiously balanced working parts and higher precision bevel wheels ensue the pump be operated stably and constantly beneath the problem of high-pressure difference. Dynamic seal component use our patent technologies and imported oil seals, the vibration amount of shaft within the shaft seals is controlled to significantly less than 0.02mm.
A gravity valve is installed amongst the suction and exhaust a part of the pump. The perform from the gravity valve is as follows, when the pressure difference amongst the suction and exhaust aspect is in excess of the excess weight of the valve, the valve opens automatically, which helps make the pressure difference often hold in a fixed controllable value, the value could be the allowable highest stress variation to be sure the pump function ordinarily and to ensure that in actual fact, the roots vacuum pump with overflow valve is a sort of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially greater speed at reasonably reduce inlet strain and it’s possessed overload self-protective perform. Since it can be a pump of dry clearance seal development, if a certain pumping pace fee and an greatest vacuum should be obtained, it’s necessary to provide a reduced inlet stress for minimizing the back movement, hence, a pump need to be backed in use, roots vacuum pump needs to be commenced quickly soon after its inlet stress reaches a permissible value for economization.
It’s permit to pick various kinds of pump because the backing pump for factual demands, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing significant amount of vapor, the liquid ring vacuum pump is the great backing pump.