Operating Principle and Attributes: The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a consistent pace within the pump housing for suction and exhaust of gasoline. Two rotors are supported by two bearings and synchronized by a gear, which guarantees these two rotors in particular relative positions. These are close to to one another and also to the housing devoid of actual contacting, so lubrication is pointless within the doing work housing. The very carefully balanced working parts and higher precision bevel wheels ensue the pump be operated stably and continuously below the condition of high-pressure difference. Dynamic seal portion makes use of our patent technologies and imported oil seals, the vibration quantity of shaft to the shaft seals is managed to less than 0.02mm. A gravity valve is set up concerning the suction and exhaust part of the pump. The function from the gravity valve is as follows, when the stress variation between the suction and exhaust part is more than the excess weight of your valve, the valve opens automatically, which helps make the strain distinction always continue to keep within a fixed controllable worth, the worth could be the allowable highest strain big difference to make sure the pump operate normally and to ensure 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 larger speed at comparatively reduce inlet strain and it truly is possessed overload self-protective perform. Because it can be a pump of dry clearance seal development, if a specific pumping speed charge 15 and an greatest vacuum must be obtained, it’s important to supply a lower inlet strain for lowering the back movement, as a result, a pump have to be backed in use, roots vacuum pump should be commenced quickly soon after its inlet pressure reaches a permissible worth for economization. It really is allow to select different kinds of pump as the backing pump for factual demands, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gas containing large quantity of vapor, the liquid ring vacuum pump could be the excellent backing pump.