Working Principle and Features:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant pace inside the pump housing for suction and exhaust of gasoline. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in selected relative positions. They’re close to to one another and to the housing devoid of real contacting, so lubrication is needless within the working housing. The cautiously balanced operating parts and substantial precision bevel wheels ensue the pump be operated stably and constantly underneath the issue of high-pressure difference. Dynamic seal aspect use our patent technology and imported oil seals, the vibration amount of shaft around the shaft seals is controlled to much less than 0.02mm.
A gravity valve is installed involving the suction and exhaust part of the pump. The function of the gravity valve is as follows, once the pressure difference among the suction and exhaust portion is more than the excess weight of the valve, the valve opens instantly, which tends to make the strain variation usually continue to keep in a fixed controllable worth, the value would be the allowable highest pressure difference to ensure the pump perform typically and to ensure actually, the roots vacuum pump with overflow valve is often a form of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably higher speed at comparatively decrease inlet strain and it is actually possessed overload self-protective function. Because it can be a pump of dry clearance seal development, if a certain pumping velocity rate and an greatest vacuum must be obtained, it really is required to provide a reduced inlet stress for decreasing the back flow, consequently, a pump needs to be backed in use, roots vacuum pump should be started soon soon after its inlet stress reaches a permissible value for economization.
It is actually permit to select unique sorts of pump because the backing pump for factual necessities, such as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing substantial volume of vapor, the liquid ring vacuum pump will be the excellent backing pump.