Operating Principle and Attributes:
The series SYF roots vacuum pump is with overflow valve. 
The figure-of-eight rotors are counter-rotating at a continual speed within the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which guarantees these two rotors in sure relative positions. They’re near to each other and also to the housing devoid of real contacting, so lubrication is needless from the functioning housing. The very carefully balanced working parts and higher precision bevel wheels ensue the pump be operated stably and continuously beneath the affliction of high-pressure variation. Dynamic seal portion use our patent technology and imported oil seals, the vibration quantity of shaft around the shaft seals is managed to much less than 0.02mm.
A gravity valve is set up between the suction and exhaust a part of the pump. The perform of your gravity valve is as follows, when the stress variation amongst the suction and exhaust component is in excess of the excess weight from the valve, the valve opens instantly, which tends to make the strain distinction constantly keep within a fixed controllable worth, the worth is the allowable highest strain distinction to guarantee the pump function normally and so that actually, 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 higher speed at somewhat reduced inlet pressure and it’s possessed overload self-protective perform. Because it is actually a pump of dry clearance seal building, if a certain pumping velocity rate and an ultimate vacuum need to be obtained, it is required to provide a decrease inlet stress for minimizing the back movement, hence, a pump must be backed in use, roots vacuum pump should be begun soon immediately after its inlet stress reaches a permissible value for economization.
It is actually allow to select distinctive kinds of pump as the backing pump for factual specifications, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gas containing massive level of vapor, the liquid ring vacuum pump is the perfect backing pump.
