Root Vacuum Pumps

Operating Principle and Functions:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a frequent velocity inside the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in selected relative positions. They are near to each other and to the housing without real contacting, so lubrication is pointless while in the functioning housing. The meticulously balanced working components and higher precision bevel wheels ensue the pump be operated stably and continuously under the situation of high-pressure distinction. Dynamic seal element use our patent engineering and imported oil seals, the vibration level of shaft about the shaft seals is controlled to less than 0.02mm.
A gravity valve is installed concerning the suction and exhaust a part of the pump. The perform of your gravity valve is as follows, when the stress variation between the suction and exhaust element is above the excess weight from the valve, the valve opens instantly, which makes the pressure big difference usually hold inside a fixed controllable value, the worth may be the allowable highest strain big difference to guarantee the pump do the job usually and in order that actually, the roots vacuum pump with overflow valve is a form of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially larger velocity at fairly decrease inlet pressure and it truly is possessed overload self-protective perform. Because it is a pump of dry clearance seal development, if a certain pumping speed price and an ultimate vacuum should be obtained, it is actually important to provide a lower inlet stress for minimizing the back movement, as a result, a pump have to be backed in use, roots vacuum pump must be begun quickly after its inlet strain reaches a permissible value for economization.
It truly is permit to select unique varieties of pump as the backing pump for factual necessities, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gas containing large volume of vapor, the liquid ring vacuum pump is the excellent backing pump.