Root Vacuum Pumps

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 pace 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 particular relative positions. They are close to to each other and to the housing without having real contacting, so lubrication is needless from the operating housing. The cautiously balanced operating parts and higher precision bevel wheels ensue the pump be operated stably and continuously under the problem of high-pressure big difference. Dynamic seal part use our patent technology and imported oil seals, the vibration quantity of shaft around the shaft seals is controlled to less than 0.02mm.
A gravity valve is set up in between the suction and exhaust a part of the pump. The perform in the gravity valve is as follows, when the stress distinction in between the suction and exhaust element is above the excess weight in the valve, the valve opens automatically, which makes the stress variation always hold in the fixed controllable worth, the value may be the allowable highest stress distinction to make sure the pump function generally and in order that in actual fact, the roots vacuum pump with overflow valve can be a form of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably increased speed at comparatively reduce inlet strain and it is actually possessed overload self-protective function. Since it is a pump of dry clearance seal development, if a certain pumping pace fee and an ultimate vacuum have to be obtained, it is needed to provide a reduced inlet stress for minimizing the back flow, consequently, a pump has to be backed in use, roots vacuum pump need to be started out soon soon after its inlet stress reaches a permissible worth for economization.
It really is allow to pick different varieties of pump since the backing pump for factual demands, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing massive volume of vapor, the liquid ring vacuum pump is the great backing pump.