Working Principle and Functions:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a frequent speed inside the pump housing for suction and exhaust of fuel. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in certain relative positions. They are close to to one another and to the housing with out real contacting, so lubrication is pointless during the operating housing. The thoroughly balanced working elements and high precision bevel wheels ensue the pump be operated stably and continuously below the ailment of high-pressure variation. Dynamic seal part use our patent technologies and imported oil seals, the vibration amount of shaft to the shaft seals is controlled to much less than 0.02mm.
A gravity valve is put in between the suction and exhaust part of the pump. The perform in the gravity valve is as follows, once the stress big difference involving the suction and exhaust element is more than the excess weight of your valve, the valve opens automatically, which makes the stress big difference constantly preserve in the fixed controllable value, the value could be the allowable highest stress big difference to guarantee the pump perform generally and to ensure in fact, the roots vacuum pump with overflow valve is actually a variety of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially higher velocity at relatively lower inlet stress and it’s possessed overload self-protective perform. Since it is actually a pump of dry clearance seal development, if a particular pumping pace charge and an greatest vacuum should be obtained, it’s needed to supply a lower inlet strain for reducing the back flow, thus, a pump should be backed in use, roots vacuum pump need to be started quickly right after its inlet pressure reaches a permissible value for economization.
It can be permit to select distinct kinds of pump since the backing pump for factual prerequisites, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing large quantity of vapor, the liquid ring vacuum pump would be the great backing pump.