Operating Principle and Capabilities:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continuous 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 sure relative positions. These are near to one another and also to the housing without the need of real contacting, so lubrication is pointless in the operating housing. The very carefully balanced operating components and high precision bevel wheels ensue the pump be operated stably and constantly underneath the condition of high-pressure variation. Dynamic seal aspect use our patent engineering and imported oil seals, the vibration amount of shaft on the shaft seals is controlled to less than 0.02mm.
A gravity valve is set up among the suction and exhaust part of the pump. The perform of your gravity valve is as follows, once the stress distinction amongst the suction and exhaust part is above the weight on the valve, the valve opens automatically, which tends to make the stress variation constantly maintain in a fixed controllable value, the value will be the allowable highest strain variation to guarantee the pump operate normally and in order that in fact, the roots vacuum pump with overflow valve is a kind of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially greater speed at reasonably reduce inlet pressure and it is possessed overload self-protective function. Because it is a pump of dry clearance seal building, if a particular pumping speed rate and an greatest vacuum must be obtained, it’s needed to provide a lower inlet strain for reducing the back movement, hence, a pump has to be backed in use, roots vacuum pump ought to be began soon right after its inlet stress reaches a permissible worth for economization.
It’s allow to pick unique varieties of pump as the backing pump for factual specifications, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing significant amount of vapor, the liquid ring vacuum pump is definitely the excellent backing pump.