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December 8, 2020

Operating Principle and Characteristics:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continual pace within the pump housing for suction and exhaust of gasoline. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in specific relative positions. They are really near to one another and also to the housing with no real contacting, so lubrication is pointless during the working housing. The carefully balanced working components and higher precision bevel wheels ensue the pump be operated stably and constantly below the issue of high-pressure variation. Dynamic seal aspect use our patent technologies and imported oil seals, the vibration level of shaft within the shaft seals is controlled to much less than 0.02mm.
A gravity valve is installed between the suction and exhaust a part of the pump. The function on the gravity valve is as follows, when the stress variation among the suction and exhaust portion is above the fat with the valve, the valve opens automatically, which helps make the pressure variation normally keep inside a fixed controllable worth, the value is definitely the allowable highest pressure big difference to make certain the pump work normally and in order that in fact, the roots vacuum pump with overflow valve is a type of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially larger velocity at rather decrease inlet strain and it really is possessed overload self-protective perform. As it is really a pump of dry clearance seal building, if a particular pumping velocity fee and an greatest vacuum should be obtained, it’s required to supply a lower inlet strain for cutting down the back flow, thus, a pump needs to be backed in use, roots vacuum pump should be started quickly just after its inlet stress reaches a permissible value for economization.
It is actually permit to select distinctive sorts of pump since the backing pump for factual needs, this kind of 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 perfect backing pump.