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December 8, 2020

Working Principle and Attributes:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continual pace 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 can be close to to each other and to the housing without real contacting, so lubrication is needless inside the operating housing. The thoroughly balanced working elements and higher precision bevel wheels ensue the pump be operated stably and continuously below the situation of high-pressure distinction. Dynamic seal part use our patent technology and imported oil seals, the vibration quantity of shaft to the shaft seals is controlled to less than 0.02mm.
A gravity valve is set up in between the suction and exhaust part of the pump. The function on the gravity valve is as follows, when the strain variation among the suction and exhaust component is above the excess weight from the valve, the valve opens immediately, which helps make the stress distinction always keep within a fixed controllable worth, the value would be the allowable highest strain big difference to ensure the pump perform generally and to ensure that in reality, 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 considerably increased pace at rather decrease inlet strain and it is possessed overload self-protective function. Since it is usually a pump of dry clearance seal development, if a certain pumping pace rate and an greatest vacuum need to be obtained, it truly is needed to supply a reduce inlet pressure for minimizing the back movement, for that reason, a pump have to be backed in use, roots vacuum pump really should be started out soon right after its inlet strain reaches a permissible worth for economization.
It’s allow to pick diverse types of pump since the backing pump for factual demands, such as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing substantial level of vapor, the liquid ring vacuum pump is definitely the great backing pump.