March 1, 2021

Operating Principle and Characteristics: 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 assures these two rotors in specific relative positions. They are really near to each other and to the housing without actual contacting, so lubrication is unnecessary inside the operating housing. The cautiously balanced working elements and high precision bevel wheels ensue the pump be operated stably and continuously below the issue of high-pressure difference. Dynamic seal aspect makes use of our patent engineering and imported oil seals, the vibration amount of shaft around the shaft seals is managed to significantly less than 0.02mm. A gravity valve is set up in between the suction and exhaust part of the pump. The function of the gravity valve is as follows, when the strain difference in between the suction and exhaust element is over the weight from the valve, the valve opens automatically, which makes the pressure distinction always hold within a fixed controllable value, the value may be the allowable highest pressure difference to make sure the pump operate usually and so that in actual fact, the roots vacuum pump with overflow valve is usually a sort of overload self-protective pump. Series SYF roots vacuum pump with overflow valve has considerably increased pace at somewhat reduce inlet strain and it’s possessed overload self-protective function. Because it is a pump of dry clearance seal construction, if a particular pumping pace fee 15 and an ultimate vacuum must be obtained, it can be needed to provide a reduce inlet pressure for minimizing the back movement, hence, a pump has to be backed in use, roots vacuum pump need to be commenced quickly right after its inlet stress reaches a permissible worth for economization. It is allow to pick distinct sorts of pump because the backing pump for factual demands, such as oil seal pump and liquid ring vacuum pump. When pumping the gas containing big volume of vapor, the liquid ring vacuum pump may be the ideal backing pump.