Working Principle and Options:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a frequent velocity inside the pump housing for suction and exhaust of gasoline. Two rotors are supported by two bearings and synchronized by a gear, which guarantees these two rotors in certain relative positions. These are close to to one another and also to the housing without the need of actual contacting, so lubrication is unnecessary from the doing work housing. The meticulously balanced operating parts and higher precision bevel wheels ensue the pump be operated stably and continuously underneath the issue of high-pressure variation. Dynamic seal portion use our patent engineering and imported oil seals, the vibration amount of shaft to the shaft seals is managed to significantly less than 0.02mm.
A gravity valve is installed between the suction and exhaust a part of the pump. The perform in the gravity valve is as follows, when the pressure distinction involving the suction and exhaust part is more than the excess weight in the valve, the valve opens instantly, which can make the stress distinction always preserve within a fixed controllable worth, the value is the allowable highest pressure distinction to make sure the pump function commonly and to ensure in fact, the roots vacuum pump with overflow valve can be a form of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably higher speed at fairly lower inlet stress and it is actually possessed overload self-protective perform. Since it is a pump of dry clearance seal construction, if a particular pumping speed rate and an ultimate vacuum have to be obtained, it is essential to provide a decrease inlet pressure for lowering the back movement, consequently, a pump have to be backed in use, roots vacuum pump ought to be started off soon soon after its inlet pressure reaches a permissible value for economization.
It is allow to select diverse sorts of pump because the backing pump for factual demands, 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 excellent backing pump.