Operating Principle and Features:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a consistent velocity inside the pump housing for suction and exhaust of fuel. Two rotors are supported by two bearings and synchronized 
by a gear, which assures these two rotors in certain relative positions. They’re close to to each other and also to the housing without having real contacting, so lubrication is pointless within the doing work housing. The very carefully balanced working components and large precision bevel wheels ensue the pump be operated stably and continuously beneath the ailment of high-pressure big difference. Dynamic seal part use our patent technology and imported oil seals, the vibration quantity of shaft over the shaft seals is controlled to less than 0.02mm.
A gravity valve is installed among the suction and exhaust a part of the pump. The perform in the gravity valve is as follows, when the stress variation involving the suction and exhaust component is more than the fat from the valve, the valve opens immediately, which helps make the stress variation always keep in a fixed controllable value, the worth could be the allowable highest strain big difference to be sure the pump get the job done normally and so that actually, the roots vacuum pump with overflow valve is a sort of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably larger pace at relatively lower inlet stress and it is actually possessed overload self-protective function. Since it is really a pump of dry clearance seal development, if a certain pumping velocity charge and an ultimate vacuum have to be obtained, it truly is necessary to provide a lower inlet stress for cutting down the back flow, hence, a pump should be backed in use, roots vacuum pump should be started out soon soon after its inlet pressure reaches a permissible value for economization.
It truly is permit to pick different sorts of pump because the backing pump for factual needs, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gas containing large level of vapor, the liquid ring vacuum pump would be the perfect backing pump.
