December 8, 2020

Working Principle and Capabilities:
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 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 each other and also to the housing with no real contacting, so lubrication is unnecessary within the working housing. The meticulously balanced working elements and substantial precision bevel wheels ensue the pump be operated stably and constantly below the problem of high-pressure big difference. Dynamic seal part use our patent technologies and imported oil seals, the vibration quantity of shaft to the shaft seals is managed to significantly less than 0.02mm.
A gravity valve is put in between the suction and exhaust part of the pump. The function of your gravity valve is as follows, once the strain difference amongst the suction and exhaust portion is in excess of the fat on the valve, the valve opens instantly, which tends to make the stress variation always maintain in the fixed controllable value, the worth will be the allowable highest stress difference to be sure the pump get the job done commonly and so that in truth, the roots vacuum pump with overflow valve is really a form of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially higher speed at fairly reduced inlet strain and it is possessed overload self-protective function. Because it is often a pump of dry clearance seal building, if a certain pumping speed fee and an ultimate vacuum have to be obtained, it truly is essential to provide a decrease inlet strain for cutting down the back movement, for that reason, a pump need to be backed in use, roots vacuum pump need to be began quickly immediately after its inlet pressure reaches a permissible worth for economization.
It is actually allow to select unique sorts of pump as the backing pump for factual prerequisites, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gas containing significant volume of vapor, the liquid ring vacuum pump is the perfect backing pump.