Root Vacuum Pumps

Working Principle and Attributes:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a consistent speed inside 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 near to each other and to the housing without having real contacting, so lubrication is pointless from the working housing. The carefully balanced operating components and large precision bevel wheels ensue the pump be operated stably and continuously underneath the problem of high-pressure big difference. Dynamic seal component use our patent technologies and imported oil seals, the vibration volume of shaft over the shaft seals is managed to much less than 0.02mm.
A gravity valve is installed in between the suction and exhaust part of the pump. The function of the gravity valve is as follows, once the pressure big difference between the suction and exhaust aspect is over the weight from the valve, the valve opens automatically, which helps make the pressure variation often preserve in a fixed controllable worth, the value will be the allowable highest stress big difference to make sure the pump function normally and to ensure actually, the roots vacuum pump with overflow valve is often a form of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially increased speed at rather lower inlet stress and it’s possessed overload self-protective function. Because it can be a pump of dry clearance seal building, if a specific pumping speed fee and an greatest vacuum should be obtained, it is necessary to supply a decrease inlet strain for reducing the back flow, therefore, a pump need to be backed in use, roots vacuum pump need to be started out quickly after its inlet strain reaches a permissible worth for economization.
It really is allow to pick diverse types of pump because the backing pump for factual specifications, such as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing big amount of vapor, the liquid ring vacuum pump may be the excellent backing pump.


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