Working Principle and Attributes:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant velocity 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 specific relative positions. They may be close to to each other and to the housing with no actual contacting, so lubrication is unnecessary while in the doing work housing. The carefully balanced working elements and large precision bevel wheels ensue the pump be operated stably and continuously below the ailment of high-pressure distinction. Dynamic seal element use our patent technologies and imported oil seals, the vibration volume of shaft within the shaft seals is managed to much less than 0.02mm.
A gravity valve is put in concerning the suction and exhaust a part of the pump. The function in the gravity valve is as follows, once the strain variation between the suction and exhaust element is more than the fat of your valve, the valve opens immediately, which helps make the pressure distinction always retain within a fixed controllable worth, the worth would be the allowable highest stress big difference to be sure the pump do the job typically and to ensure that in truth, the roots vacuum pump with overflow valve can be a variety of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially increased pace at relatively lower inlet strain and it really is possessed overload self-protective perform. As it can 
be a pump of dry clearance seal development, if a specific pumping pace charge and an ultimate vacuum have to be obtained, it is actually necessary to supply a decrease inlet pressure for cutting down the back flow, for that reason, a pump needs to be backed in use, roots vacuum pump really should be commenced quickly just after its inlet strain reaches a permissible value for economization.
It is actually permit to select different sorts of pump since the backing pump for factual necessities, such as oil seal pump and liquid ring vacuum pump. When pumping the gas containing huge volume of vapor, the liquid ring vacuum pump may be the ideal backing pump.
