Operating Principle and Characteristics:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a frequent speed within the pump housing for suction and exhaust of fuel. Two rotors are supported by two bearings and synchronized by a gear, which assures these two rotors in certain relative positions. They are near to one another and to the housing without having actual contacting, so lubrication is pointless during the doing work housing. The cautiously balanced operating components and high precision bevel wheels ensue the pump be operated stably and constantly below the issue of high-pressure difference. Dynamic seal component use our patent engineering and imported oil seals, the vibration volume of shaft about the shaft seals is controlled to less than 0.02mm.
A gravity valve is installed between the suction and exhaust part of the pump. The perform with the gravity valve is as follows, once the stress difference involving the suction and exhaust part is over the weight of the valve, the valve opens immediately, which makes the stress distinction usually keep inside a fixed controllable value, the value may be the allowable highest stress difference to make sure the pump do the job commonly and so that the truth is, the roots vacuum pump with overflow valve is usually a kind of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably higher velocity at rather reduce inlet pressure and it’s possessed overload self-protective function. Since it is actually a pump of dry clearance seal development, if a certain pumping velocity fee and an greatest vacuum should be obtained, it is essential to provide a reduced inlet strain for reducing the back flow, for that reason, a pump needs to be backed in use, roots vacuum pump ought to be commenced quickly just after its inlet strain reaches a permissible value for economization.
It really is permit to select diverse kinds of pump as the backing pump for factual specifications, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gas containing large quantity of vapor, the liquid ring vacuum pump may be the excellent backing pump.