Operating Principle and Features:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continuous 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 sure relative positions. They are near to each other and to the housing without the need of real contacting, so lubrication is needless from the doing work housing. The meticulously balanced operating components and high precision bevel wheels ensue the pump be operated stably and constantly below the affliction of high-pressure variation. Dynamic seal aspect use our patent engineering and imported oil seals, the vibration amount of shaft to the shaft seals is controlled to less than 0.02mm.
A gravity valve is put in involving the suction and exhaust part of the pump. The perform with the gravity valve is as follows, when the pressure variation concerning the suction and exhaust portion is more than the fat in the valve, the valve opens immediately, which can make the stress variation constantly hold in a fixed controllable worth, the worth could be the allowable highest pressure difference to make certain the pump do the job typically and in order that in reality, the roots vacuum pump with overflow valve can be a variety of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably greater pace at reasonably decrease inlet strain and it’s possessed overload self-protective perform. As it is really a pump of dry clearance seal development, if a particular pumping pace fee and an ultimate vacuum need to be obtained, it is essential to provide a decrease inlet strain for lowering the back movement, thus, a pump must be backed in use, roots vacuum pump should be began soon soon after its inlet strain reaches a permissible worth for economization.
It really is permit to select distinct kinds of pump as the backing pump for factual needs, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing big volume of vapor, the liquid ring vacuum pump could be the perfect backing pump.