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Working Principle and Options:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a consistent pace inside the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in specific relative positions. They are near to one another and also to the housing with out actual contacting, so lubrication is pointless within the operating housing. The carefully balanced working parts and substantial precision bevel wheels ensue the pump be operated stably and constantly below the situation of high-pressure big difference. Dynamic seal component use our patent technology and imported oil seals, the vibration quantity of shaft to 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 perform of the gravity valve is as follows, once the strain big difference between the suction and exhaust component is above the excess weight from the valve, the valve opens automatically, which helps make the stress variation constantly retain in the fixed controllable worth, the value may be the allowable highest stress variation to guarantee the pump work generally and so that in truth, 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 higher speed at relatively reduced inlet stress and it truly is possessed overload self-protective perform. As it is actually a pump of dry clearance seal construction, if a particular pumping velocity price and an ultimate vacuum must be obtained, it truly is needed to supply a decrease inlet stress for reducing the back movement, thus, a pump have to be backed in use, roots vacuum pump need to be started off quickly immediately after its inlet strain reaches a permissible worth for economization.
It truly is permit to select unique kinds of pump because the backing pump for factual demands, such as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing big quantity of vapor, the liquid ring vacuum pump is definitely the great backing pump.