Root Vacuum Pumps

Working Principle and Features:
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 fuel. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in sure relative positions. They may be close to to one another and also to the housing without the need of actual contacting, so lubrication is needless inside the operating housing. The cautiously balanced operating components and high precision bevel wheels ensue the pump be operated stably and continuously under the affliction of high-pressure difference. Dynamic seal aspect use our patent technologies and imported oil seals, the vibration quantity of shaft within the shaft seals is controlled to significantly less than 0.02mm.
A gravity valve is installed concerning the suction and exhaust a part of the pump. The function from the gravity valve is as follows, once the stress distinction amongst the suction and exhaust portion is more than the excess weight from the valve, the valve opens instantly, which tends to make the strain difference often keep inside a fixed controllable value, the value would be the allowable highest stress distinction to make sure the pump operate generally and to ensure in reality, 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 speed at reasonably decrease inlet strain and it is possessed overload self-protective function. Because it is often a pump of dry clearance seal construction, if a particular pumping velocity rate and an ultimate vacuum should be obtained, it really is needed to provide a reduced inlet strain for lowering the back flow, as a result, a pump must be backed in use, roots vacuum pump ought to be began quickly soon after its inlet strain reaches a permissible worth for economization.
It is permit to select distinctive types of pump because the backing pump for factual prerequisites, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing significant amount of vapor, the liquid ring vacuum pump may be the great backing pump.