March 1, 2021

Working Principle and Characteristics: The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a consistent velocity within 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 specific relative positions. They may be near to one another and to the housing with no real contacting, so lubrication is needless while in the working housing. The cautiously balanced operating elements and large precision bevel wheels ensue the pump be operated stably and constantly under the issue of high-pressure big difference. Dynamic seal aspect employs our patent engineering and imported oil seals, the vibration volume of shaft around the shaft seals is controlled to significantly less than 0.02mm. A gravity valve is put in in between the suction and exhaust a part of the pump. The function with the gravity valve is as follows, when the stress difference amongst the suction and exhaust portion is above the fat on the valve, the valve opens automatically, which can make the strain difference always maintain within a fixed controllable worth, the worth is the allowable highest pressure big difference to make certain the pump work normally and to ensure in actual fact, the roots vacuum pump with overflow valve is really a sort of overload self-protective pump. Series SYF roots vacuum pump with overflow valve has substantially increased velocity at somewhat reduced inlet strain and it truly is possessed overload self-protective perform. As it is a pump of dry clearance seal building, if a particular pumping velocity charge 15 and an greatest vacuum must be obtained, it is needed to supply a lower inlet strain for minimizing the back flow, hence, a pump need to be backed in use, roots vacuum pump need to be started quickly immediately after its inlet stress reaches a permissible worth for economization. It is permit to pick different sorts of pump as the backing pump for factual needs, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gas containing significant volume of vapor, the liquid ring vacuum pump could be the ideal backing pump.