March 1, 2021

Operating 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 within the pump housing for suction and exhaust of fuel. Two rotors are supported by two bearings and synchronized by a gear, which guarantees these two rotors in selected relative positions. These are near to one another and to the housing without actual contacting, so lubrication is needless while in the operating housing. The thoroughly balanced operating components and substantial precision bevel wheels ensue the pump be operated stably and continuously below the situation of high-pressure variation. Dynamic seal part makes use of our patent engineering and imported oil seals, the vibration amount of shaft within the shaft seals is managed to less than 0.02mm. A gravity valve is set up between the suction and exhaust a part of the pump. The perform in the gravity valve is as follows, once the pressure difference among the suction and exhaust part is above the weight in the valve, the valve opens immediately, which tends to make the stress variation usually preserve inside a fixed controllable worth, the value is definitely the allowable highest stress big difference to make sure the pump perform commonly and to ensure the truth is, the roots vacuum pump with overflow valve is really a kind of overload self-protective pump. Series SYF roots vacuum pump with overflow valve has substantially higher speed at rather lower inlet pressure and it truly is possessed overload self-protective function. Because it is actually a pump of dry clearance seal construction, if a certain pumping speed charge 15 and an ultimate vacuum must be obtained, it truly is essential to supply a reduce inlet pressure for reducing the back flow, for that reason, a pump should be backed in use, roots vacuum pump ought to be begun quickly soon after its inlet strain reaches a permissible worth for economization. It really is allow to select distinctive sorts of pump because the backing pump for factual specifications, such as oil seal pump and liquid ring vacuum pump. When pumping the gas containing huge quantity of vapor, the liquid ring vacuum pump could be the excellent backing pump.