Root Vacuum Pumps

Operating Principle and Options:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continuous velocity 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’re close to to each other and to the housing without real contacting, so lubrication is unnecessary while in the functioning housing. The carefully balanced operating components and high precision bevel wheels ensue the pump be operated stably and continuously under the problem of high-pressure variation. Dynamic seal component use our patent technological innovation and imported oil seals, the vibration amount of shaft over the shaft seals is controlled to significantly less than 0.02mm.
A gravity valve is set up between the suction and exhaust part of the pump. The function in the gravity valve is as follows, once the strain difference in between the suction and exhaust component is above the fat of your valve, the valve opens immediately, which tends to make the pressure difference constantly retain within a fixed controllable value, the value is the allowable highest pressure difference to guarantee the pump do the job normally and to ensure that in actual fact, the roots vacuum pump with overflow valve is usually a type of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially higher velocity at comparatively lower inlet stress and it truly is possessed overload self-protective function. As it is actually a pump of dry clearance seal construction, if a certain pumping speed price and an ultimate vacuum need to be obtained, it is actually important to supply a reduced inlet strain for decreasing the back movement, as a result, a pump need to be backed in use, roots vacuum pump should be started out soon after its inlet strain reaches a permissible value for economization.
It’s allow to select 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 massive level of vapor, the liquid ring vacuum pump is definitely the perfect backing pump.


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