Operating Principle and Attributes:
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 ensures these two rotors in selected relative positions. They are near to each other and to the housing without having actual contacting, so lubrication is needless while in the working housing. The meticulously balanced working parts and substantial precision bevel wheels ensue the pump be operated stably and continuously beneath the issue of high-pressure variation. Dynamic seal aspect use our patent technology and imported oil seals, the vibration level of shaft around the shaft seals is managed to less than 0.02mm.
A gravity valve is put in concerning the suction and exhaust part of the pump. The function from the gravity valve is as follows, once the strain big difference involving the suction and exhaust aspect is above the excess weight on the valve, the valve opens automatically, which helps make the stress big difference generally retain within a fixed controllable value, the worth will be the allowable highest strain variation to be sure the pump work ordinarily and in order that in actual fact, the roots vacuum pump with overflow valve is a variety of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably larger speed at somewhat lower inlet stress and it can be possessed overload self-protective function. As it is actually a pump of dry clearance seal building, if a certain pumping velocity fee and an greatest vacuum should be obtained, it is actually essential to provide a reduce inlet stress for decreasing the back movement, for that reason, a pump needs to be backed in use, roots vacuum pump ought to be began soon immediately after its inlet stress reaches a permissible value for economization.
It really is allow to select diverse sorts of pump as the backing pump for factual prerequisites, such as oil seal pump and liquid ring vacuum pump. When pumping the gas containing large amount of vapor, the liquid ring vacuum pump could be the great backing pump.