Working Principle and Characteristics:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continual pace inside the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in sure relative positions. They are near to one another and to the housing with no actual contacting, so lubrication is needless in the working housing. The meticulously balanced operating components and substantial precision bevel wheels ensue the pump be operated stably and continuously below the affliction of high-pressure variation. Dynamic seal component use our patent engineering and imported oil seals, the vibration quantity of shaft on the shaft seals is managed to less than 0.02mm.
A gravity valve is put in amongst the suction and exhaust part of the pump. The perform from the gravity valve is as follows, when the strain distinction amongst the suction and exhaust element is in excess of the bodyweight of the valve, the valve opens immediately, which makes the strain variation always preserve within a fixed controllable value, the worth is the allowable highest stress distinction to guarantee the pump do the job generally and to ensure in fact, the roots vacuum pump with overflow valve is really a kind of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably increased velocity at somewhat decrease inlet stress and it really is possessed overload self-protective perform. Because it is actually a pump of dry clearance seal building, if a specific pumping velocity fee and an greatest vacuum need to be obtained, it really is essential to supply a reduced inlet strain for reducing the back movement, thus, a pump must be backed in use, roots vacuum pump need to be commenced quickly right after its inlet stress reaches a permissible worth for economization.
It is permit to pick various varieties of pump as the backing pump for factual demands, such as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing significant level of vapor, the liquid ring vacuum pump is the great backing pump.