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Working Principle and Attributes:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a consistent speed within the pump housing for suction and exhaust of fuel. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in specific relative positions. These are near to each other and to the housing with no actual contacting, so lubrication is needless in the functioning housing. The carefully balanced operating parts and high precision bevel wheels ensue the pump be operated stably and constantly underneath the ailment of high-pressure variation. Dynamic seal aspect use our patent technologies and imported oil seals, the vibration level of shaft about the shaft seals is controlled to much less than 0.02mm.
A gravity valve is set up involving the suction and exhaust a part of the pump. The perform with the gravity valve is as follows, when the stress distinction between the suction and exhaust portion is in excess of the weight with the valve, the valve opens instantly, which makes the pressure big difference normally preserve inside a fixed controllable worth, the value may be the allowable highest strain distinction to guarantee the pump perform commonly and so that in truth, the roots vacuum pump with overflow valve is usually a variety of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially increased speed at rather lower inlet pressure and it’s possessed overload self-protective function. As it is a pump of dry clearance seal construction, if a certain pumping pace fee and an greatest vacuum have to be obtained, it’s important to supply a reduce inlet stress for lowering the back flow, hence, a pump needs to be backed in use, roots vacuum pump need to be begun quickly just after its inlet strain reaches a permissible value for economization.
It can be allow to select distinctive varieties of pump since the backing pump for factual specifications, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing huge amount of vapor, the liquid ring vacuum pump could be the perfect backing pump.