Operating Principle and Capabilities:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant speed inside 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 selected relative positions. They may be near to one another and to the housing with no real contacting, so lubrication is pointless in the working housing. The carefully balanced working parts and substantial precision bevel wheels ensue the pump be operated stably and constantly under the problem of high-pressure variation. Dynamic seal aspect use our patent technology and imported oil seals, the vibration volume of shaft on the shaft seals is managed to much less than 0.02mm.
A gravity valve is put in amongst the suction and exhaust part of the pump. The function of your gravity valve is as follows, when the pressure variation in between the suction and exhaust element is over the weight with the valve, the valve opens instantly, which tends to make the stress variation usually retain inside a fixed controllable worth, the value will be the allowable highest pressure difference to guarantee the pump function usually and in order that in reality, the roots vacuum pump with overflow valve can be a variety of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably increased speed at relatively reduced inlet stress and it can be possessed overload self-protective function. As it is actually a pump of dry clearance seal development, if a particular pumping pace fee and an ultimate vacuum should be obtained, it really is essential to supply a reduce inlet stress for reducing the back movement, therefore, a pump need to be backed in use, roots vacuum pump ought to be begun soon following its inlet stress reaches a permissible value for economization.
It can be permit to pick diverse sorts of pump as the backing pump for factual demands, such as oil seal pump and liquid ring vacuum pump. When pumping the gas containing massive level of vapor, the liquid ring vacuum pump may be the best backing pump.