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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 frequent velocity inside 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 particular relative positions. They can be close to to each other and to the housing without actual contacting, so lubrication is unnecessary in the doing work housing. The thoroughly balanced operating components and substantial precision bevel wheels ensue the pump be operated stably and constantly below the condition of high-pressure difference. Dynamic seal aspect use our patent technologies and imported oil seals, the vibration volume of shaft about the shaft seals is managed to less than 0.02mm.
A gravity valve is put in among the suction and exhaust part of the pump. The function from the gravity valve is as follows, when the pressure difference concerning the suction and exhaust aspect is more than the bodyweight with the valve, the valve opens immediately, which helps make the stress variation always preserve in a fixed controllable value, the worth may be the allowable highest pressure big difference to make certain the pump operate commonly and in order that in actual fact, the roots vacuum pump with overflow valve is really a type of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably larger velocity at fairly decrease inlet stress and it can be possessed overload self-protective function. Since it is usually a pump of dry clearance seal construction, if a specific pumping pace price and an ultimate vacuum have to be obtained, it really is necessary to supply a lower inlet strain for decreasing the back movement, consequently, a pump has to be backed in use, roots vacuum pump needs to be began quickly following its inlet strain reaches a permissible worth for economization.
It truly is permit to pick diverse sorts of pump because the backing pump for factual necessities, such as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing big volume of vapor, the liquid ring vacuum pump may be the suitable backing pump.