Operating Principle and Options:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a consistent speed within 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 close to to each other and to the housing with out actual contacting, so lubrication is unnecessary inside the operating housing. The meticulously balanced operating components and substantial precision bevel wheels ensue the pump be operated stably and constantly underneath the ailment of high-pressure distinction. Dynamic seal portion use our patent engineering and imported oil seals, the vibration volume of shaft on the shaft seals is managed to much less than 0.02mm.
A gravity valve is put in in between the suction and exhaust a part of the pump. The perform of your gravity valve is as follows, once the pressure distinction among the suction and exhaust element is above the weight of the valve, the valve opens automatically, which can make the pressure difference often preserve inside a fixed controllable value, the worth is the allowable highest strain big difference to make sure the pump perform commonly and to ensure that in reality, 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 substantially larger speed at rather reduced inlet strain and it is actually possessed overload self-protective function. Because it is actually a pump of dry clearance seal construction, if a certain pumping velocity price and an ultimate vacuum have to be obtained, it can be needed to supply a reduced inlet strain for cutting down the back movement, hence, a pump should be backed in use, roots vacuum pump must be started quickly just after its inlet stress reaches a permissible value for economization.
It is actually allow to pick distinctive kinds of pump as the backing pump for factual prerequisites, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing substantial level of vapor, the liquid ring vacuum pump could be the perfect backing pump.