ROOTS VACUUM PUMPS
Working Principle and Features: The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a frequent velocity within 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 specified relative positions. They are really near to one another and also to the housing without having real contacting, so lubrication is pointless within the working housing. The thoroughly balanced operating parts and substantial precision bevel wheels ensue the pump be operated stably and continuously below the condition of high-pressure difference. Dynamic seal aspect makes use of our patent technology and imported oil seals, the vibration level of shaft to the shaft seals is controlled to significantly less than 0.02mm. A gravity valve is installed involving the suction and exhaust a part of the pump. The function of the gravity valve is as follows, when the strain distinction in between the suction and exhaust portion is over the bodyweight with the valve, the valve opens immediately, which can make the strain difference constantly hold in the fixed controllable worth, the worth may be the allowable highest strain difference to make certain the pump do the job commonly and in order that in fact, the roots vacuum pump with overflow valve is actually a type of overload self-protective pump. Series SYF roots vacuum pump with overflow valve has substantially greater speed at rather lower inlet strain and it is actually possessed overload self-protective perform. Because it is really a pump of dry clearance seal building, if a certain pumping velocity fee 15 and an greatest vacuum must be obtained, it’s essential to provide a lower inlet pressure for lowering the back movement, therefore, a pump has to be backed in use, roots vacuum pump should be begun soon just after its inlet strain reaches a permissible value for economization. It is permit to select different types of pump as the backing pump for factual needs, such as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing massive volume of vapor, the liquid ring vacuum pump may be the suitable backing pump.