Operating Principle and Features:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant velocity 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 specific relative positions. They may be near to each other and to the housing without the need of real contacting, so lubrication is pointless within the functioning housing. The very carefully balanced operating components and substantial precision bevel wheels ensue the pump be operated stably and continuously below the situation of high-pressure variation. Dynamic seal element use our patent technological innovation and imported oil seals, the vibration amount of shaft within the shaft seals is controlled to much less than 0.02mm.
A gravity valve is installed in between the suction and exhaust a part of the pump. The function in the gravity valve is as follows, when the stress big difference between the suction and exhaust element is in excess of the weight of your valve, the valve opens automatically, which tends to make the stress variation normally keep inside a fixed controllable value, the worth is the allowable highest stress variation to make sure the pump work ordinarily and in order that in truth, the roots vacuum pump with overflow valve is often a variety of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably greater pace at comparatively lower inlet pressure and it’s possessed overload self-protective perform. As it is often a pump of dry clearance seal building, if a certain pumping pace rate and an greatest vacuum must be obtained, it truly is necessary to provide a reduced inlet strain for reducing the back movement, thus, a pump have to be backed in use, roots vacuum pump ought to be started off soon following its inlet strain reaches a permissible value for economization.
It can be permit to pick different types of pump since the backing pump for factual demands, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing huge volume of vapor, the liquid ring vacuum pump will be the ideal backing pump.