Operating Principle and Characteristics:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant pace inside the pump housing for suction and exhaust of gasoline. Two rotors are supported by two bearings and synchronized by a gear, which assures these two rotors in specified relative positions. They can be near to each other and also to the housing with out real contacting, so lubrication is unnecessary within the working housing. The cautiously balanced operating elements and high precision bevel wheels ensue the pump be operated stably and continuously below the problem of high-pressure distinction. Dynamic seal aspect use our patent technologies and imported oil seals, the vibration level of shaft on the shaft seals is controlled to less than 0.02mm.
A gravity valve is installed involving the suction and exhaust a part of the pump. The perform with the gravity valve is as follows, once the stress distinction amongst the suction and exhaust component is more than the excess weight with the valve, the valve opens instantly, which can make the strain difference constantly preserve in a fixed controllable worth, the worth is the allowable highest strain variation to ensure the pump function generally and to ensure the truth is, the roots vacuum pump with overflow valve is actually a form of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially greater velocity at reasonably decrease inlet stress and it truly is possessed overload self-protective function. Since it is usually a pump of dry clearance seal development, if a certain pumping speed price and an greatest vacuum have to be obtained, it’s necessary to supply a reduced inlet strain for lowering the back flow, as a result, a pump need to be backed in use, roots vacuum pump really should be began soon just after its inlet pressure reaches a permissible value for economization.
It truly is permit to pick different kinds of pump as the backing pump for factual specifications, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing significant level of vapor, the liquid ring vacuum pump could be the great backing pump.