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Operating Principle and Functions:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continual velocity inside the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which assures these two rotors in certain relative positions. They are near to one another and also to the housing without having real contacting, so lubrication is unnecessary during the functioning housing. The cautiously balanced operating elements and higher precision bevel wheels ensue the pump be operated stably and continuously beneath the issue of high-pressure distinction. Dynamic seal element use our patent technology and imported oil seals, the vibration amount of shaft about the shaft seals is managed to significantly less than 0.02mm.
A gravity valve is set up concerning the suction and exhaust part of the pump. The perform from the gravity valve is as follows, once the pressure big difference among the suction and exhaust portion is more than the fat on the valve, the valve opens instantly, which can make the strain difference often hold in the fixed controllable worth, the worth may be the allowable highest pressure variation to guarantee the pump operate commonly and so that actually, the roots vacuum pump with overflow valve is a variety of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably larger pace at reasonably reduce inlet stress and it truly is possessed overload self-protective perform. Since it is actually a pump of dry clearance seal development, if a particular pumping pace price and an greatest vacuum have to be obtained, it is important to provide a reduce inlet strain for minimizing the back flow, thus, a pump needs to be backed in use, roots vacuum pump must be commenced soon right after its inlet strain reaches a permissible value for economization.
It’s allow to select unique sorts of pump because the backing pump for factual necessities, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing huge volume of vapor, the liquid ring vacuum pump could be the perfect backing pump.