Root Vacuum Pumps

Operating Principle and Characteristics:
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 gasoline. Two rotors are supported by two bearings and synchronized by a gear, which assures these two rotors in selected relative positions. They can be close to to one another and also to the housing devoid of real contacting, so lubrication is pointless in the working housing. The very carefully balanced working components and substantial precision bevel wheels ensue the pump be operated stably and continuously underneath the condition of high-pressure variation. Dynamic seal portion use our patent engineering and imported oil seals, the vibration volume of shaft over the shaft seals is controlled to less than 0.02mm.
A gravity valve is installed among the suction and exhaust part of the pump. The function with the gravity valve is as follows, once the pressure distinction among the suction and exhaust aspect is above the weight in the valve, the valve opens automatically, which makes the stress big difference often keep in a fixed controllable value, the worth is the allowable highest strain big difference to guarantee the pump perform ordinarily and in order that in actual fact, the roots vacuum pump with overflow valve is a kind of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably greater velocity at reasonably lower inlet pressure and it is actually possessed overload self-protective function. Because it is usually a pump of dry clearance seal construction, if a particular pumping speed rate and an greatest vacuum must be obtained, it is required to provide a lower inlet strain for reducing the back movement, thus, a pump should be backed in use, roots vacuum pump should be started quickly following its inlet pressure reaches a permissible worth for economization.
It is allow to pick diverse varieties of pump since the backing pump for factual requirements, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing substantial volume of vapor, the liquid ring vacuum pump is definitely the best backing pump.


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