Working Principle and Functions:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continual pace 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. They may be close to to each other and also to the housing without having real contacting, so lubrication is needless inside the doing work housing. The meticulously balanced operating parts and high precision bevel wheels ensue the pump be operated stably and continuously under the situation of high-pressure difference. Dynamic seal aspect use our patent technology and imported oil seals, the vibration level of shaft over the shaft seals is managed to less than 0.02mm.
A gravity valve is installed in between the suction and exhaust part of the pump. The perform of your gravity valve is as follows, once the stress difference between the suction and exhaust element is over the weight in the valve, the valve opens immediately, which makes the pressure difference generally maintain within a fixed controllable worth, the value is definitely the allowable highest pressure variation to ensure the pump operate normally and to ensure that in fact, the roots vacuum pump with overflow valve is actually a sort of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably greater velocity at reasonably reduced inlet strain and it is possessed overload self-protective function. As it can be a pump of dry clearance seal development, if a certain pumping speed charge and an greatest vacuum have to be obtained, it can be important to provide a decrease inlet stress for lowering the back movement, for that reason, a pump have to be backed in use, roots vacuum pump should be began soon just after its inlet pressure reaches a permissible value for economization.
It really is allow to pick distinct varieties of pump as the backing pump for factual requirements, 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 may be the best backing pump.