Working Principle and Options:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant speed within 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’re close to to each other and to the housing without the need of real contacting, so lubrication is unnecessary within the doing work housing. The carefully balanced working components and high precision bevel wheels ensue the pump be operated stably and continuously beneath the condition of high-pressure distinction. Dynamic seal part use our patent engineering and imported oil seals, the vibration volume of shaft within the shaft seals is managed to less than 0.02mm.
A gravity valve is put in in between the suction and exhaust a part of the pump. The function of the gravity valve is as follows, when the stress distinction amongst the suction and exhaust aspect is over the excess weight in the valve, the valve opens immediately, which can make the strain distinction constantly keep in a fixed controllable worth, the worth would be the allowable highest pressure difference to ensure the pump work normally and to ensure in fact, 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 increased speed at relatively lower inlet strain and it really is possessed overload self-protective function. Since it can be a pump of dry clearance seal construction, if a specific pumping pace rate and an ultimate vacuum have to be obtained, it really is necessary to supply a decrease inlet strain for lowering the back movement, hence, a pump has to be backed in use, roots vacuum pump really should be started out quickly after its inlet stress reaches a permissible value for economization.
It is permit to select various types of pump because the backing pump for factual demands, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing significant amount of vapor, the liquid ring vacuum pump will be the excellent backing pump.