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 speed within the pump housing for suction and exhaust of gasoline. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in particular relative positions. These are close to to one another and to the housing with out real contacting, so lubrication is needless from the functioning housing. The thoroughly balanced working elements and substantial precision bevel wheels ensue the pump be operated stably and continuously beneath the issue of high-pressure variation. Dynamic seal portion use our patent technological innovation and imported oil seals, the vibration level of shaft on the shaft seals is managed to less than 0.02mm.
A gravity valve is installed concerning the suction and exhaust a part of the pump. The function of your gravity valve is as follows, once the strain difference concerning the suction and exhaust aspect is above the bodyweight of the valve, the valve opens automatically, which helps make the pressure distinction always hold in the fixed controllable value, the worth could be the allowable highest strain difference to guarantee the pump perform normally and to ensure that in reality, the roots vacuum pump with overflow valve is actually a sort of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably increased speed at comparatively reduced inlet strain and it truly is possessed overload self-protective function. Since it is a pump of dry clearance seal construction, if a particular pumping velocity charge and an ultimate vacuum need to be obtained, it is necessary to supply a decrease inlet strain for cutting down the back flow, hence, a pump need to be backed in use, roots vacuum pump should be started soon just after its inlet stress reaches a permissible value for economization.
It truly is permit to select distinctive sorts of pump as the backing pump for factual requirements, such as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing large amount of vapor, the liquid ring vacuum pump is definitely the excellent backing pump.