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Operating Principle and Characteristics:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a consistent speed within the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which assures these two rotors in sure relative positions. They may be near to one another and also to the housing with out actual contacting, so lubrication is needless in the functioning housing. The meticulously balanced working elements and substantial precision bevel wheels ensue the pump be operated stably and continuously beneath the issue of high-pressure variation. Dynamic seal aspect use our patent technological innovation and imported oil seals, the vibration quantity of shaft to the shaft seals is controlled to much less than 0.02mm.
A gravity valve is put in involving the suction and exhaust a part of the pump. The function in the gravity valve is as follows, when the pressure distinction between the suction and exhaust part is over the bodyweight of your valve, the valve opens instantly, which tends to make the stress distinction usually retain in a fixed controllable worth, the worth will be the allowable highest pressure big difference to ensure the pump function generally and to ensure in fact, the roots vacuum pump with overflow valve is actually a kind of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably greater velocity at rather reduce inlet pressure and it really is possessed overload self-protective function. Because it can be a pump of dry clearance seal construction, if a particular pumping speed charge and an greatest vacuum should be obtained, it really is important to provide a reduced inlet strain for decreasing the back movement, hence, a pump need to be backed in use, roots vacuum pump need to be began soon immediately after its inlet strain reaches a permissible value for economization.
It can be allow to select distinctive sorts of pump since the backing pump for factual necessities, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing big quantity of vapor, the liquid ring vacuum pump may be the ideal backing pump.