Operating Principle and Characteristics:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a consistent velocity within the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which guarantees these two rotors in particular relative positions. They are really close to to each other and to the housing devoid of real contacting, so lubrication is needless in the doing work housing. The meticulously balanced working parts and substantial precision bevel wheels ensue the pump be operated stably and continuously below the affliction of high-pressure distinction. Dynamic seal portion use our patent technologies and imported oil seals, the vibration level of shaft on the shaft seals is managed to significantly less than 0.02mm.
A gravity valve is set up concerning the suction and exhaust a part of the pump. The function with the gravity valve is as follows, when the stress distinction amongst the suction and exhaust element is in excess of the excess weight from the valve, the valve opens immediately, which helps make the stress difference often retain in a fixed controllable worth, the value will be the allowable highest strain difference to ensure the pump work normally and to ensure in truth, the roots vacuum pump with overflow valve is often a type of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably larger velocity at relatively lower inlet strain and it really is possessed overload self-protective perform. Since it is really a pump of dry clearance seal development, if a specific pumping speed fee and an greatest vacuum need to be obtained, it really is important to supply a decrease inlet stress for reducing the back movement, for that reason, a pump must be backed in use, roots vacuum pump really should be started quickly just after its inlet pressure reaches a permissible worth for economization.
It is allow to select various types of pump as the backing pump for factual demands, such as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing massive volume of vapor, the liquid ring vacuum pump will be the excellent backing pump.