Working Principle and Capabilities:
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 fuel. Two rotors are supported by two bearings and synchronized by a gear, which assures these two rotors in particular relative positions. They are near to each other and to the housing with out real contacting, so lubrication is unnecessary while in the functioning housing. The very carefully balanced working elements and high precision bevel wheels ensue the pump be operated stably and constantly beneath the affliction of high-pressure variation. Dynamic seal aspect use our patent technologies and imported oil seals, the vibration level of shaft on the shaft seals is controlled to significantly less than 0.02mm.
A gravity valve is put in amongst the suction and exhaust part of the pump. The function from the gravity valve is as follows, when the stress difference concerning the suction and exhaust part is above the fat of your valve, the valve opens automatically, which tends to make the stress difference generally continue to keep in the fixed controllable worth, the value will be the allowable highest stress difference to make sure the pump operate commonly and so that in reality, the roots vacuum pump with overflow valve is a form of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially increased velocity at comparatively decrease inlet pressure and it is possessed overload self-protective function. Since it is a pump of dry clearance seal building, if a certain pumping pace charge and an greatest vacuum have to be obtained, it is actually needed to provide a decrease inlet pressure for lowering the back movement, for that reason, a pump need to be backed in use, roots vacuum pump ought to be began quickly immediately after its inlet stress reaches a permissible worth for economization.
It is actually permit to pick distinct 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 gas containing big quantity of vapor, the liquid ring vacuum pump is the perfect backing pump.