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December 8, 2020

Operating Principle and Characteristics:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant pace 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 sure relative positions. They are close to to each other and also to the housing without the need of real contacting, so lubrication is pointless from the working housing. The very carefully balanced working elements and large precision bevel wheels ensue the pump be operated stably and continuously below the situation of high-pressure distinction. Dynamic seal component use our patent technology and imported oil seals, the vibration volume of shaft on the shaft seals is managed to significantly less than 0.02mm.
A gravity valve is put in in between the suction and exhaust part of the pump. The function from the gravity valve is as follows, once the strain variation amongst the suction and exhaust part is over the bodyweight of the valve, the valve opens automatically, which tends to make the strain difference often keep in the fixed controllable value, the worth could be the allowable highest pressure variation to make sure the pump work normally and in order that in fact, the roots vacuum pump with overflow valve is really a type of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably larger velocity at comparatively decrease inlet strain and it truly is possessed overload self-protective perform. Because it is actually a pump of dry clearance seal development, if a particular pumping velocity price and an ultimate vacuum must be obtained, it can be essential to provide a decrease inlet pressure for cutting down the back flow, for that reason, a pump have to be backed in use, roots vacuum pump must be started off soon following its inlet stress reaches a permissible worth for economization.
It’s permit to pick diverse types of pump because the backing pump for factual prerequisites, such as oil seal pump and liquid ring vacuum pump. When pumping the gas containing substantial quantity of vapor, the liquid ring vacuum pump would be the suitable backing pump.