Working Principle and Functions:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant pace 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 particular relative positions. They may be near to each other and also to the housing without actual contacting, so lubrication is needless from the functioning housing. The thoroughly balanced operating components and substantial precision bevel wheels ensue the pump be operated stably and constantly underneath the problem of high-pressure distinction. Dynamic seal aspect use our patent technological innovation and imported oil seals, the vibration quantity of shaft over the shaft seals is managed to less than 0.02mm.
A gravity valve is put in amongst the suction and exhaust a part of the pump. The perform with the gravity valve is as follows, once the pressure distinction among the suction and exhaust part is more than the excess weight on the valve, the valve opens instantly, which helps make the stress difference often maintain in the fixed controllable worth, the worth is the allowable highest stress big difference to guarantee the pump do the job generally and to ensure actually, the roots vacuum pump with overflow valve is really a variety of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably higher velocity at relatively reduced inlet pressure and it truly is possessed overload self-protective function. Since it is often a pump of dry clearance seal building, if a specific pumping pace rate and an greatest vacuum should be obtained, it is necessary to supply a reduced inlet strain for reducing the back flow, consequently, a pump need to be backed in use, roots vacuum pump must be started soon immediately after its inlet strain reaches a permissible value for economization.
It really is permit to pick unique varieties of pump since the backing pump for factual necessities, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing substantial amount of vapor, the liquid ring vacuum pump would be the excellent backing pump.