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 gasoline. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in specified relative positions. They can be near to one another and also to the housing devoid of real contacting, so lubrication is needless within the functioning housing. The thoroughly balanced working elements and higher precision bevel wheels ensue the pump be operated stably and continuously underneath the ailment of high-pressure distinction. Dynamic seal aspect use our patent technological innovation and imported oil seals, the vibration amount of shaft over the shaft seals is managed to significantly less than 0.02mm.
A gravity valve is put in involving the suction and exhaust a part of the pump. The function in the gravity valve is as follows, when the pressure distinction in between the suction and exhaust portion is above the bodyweight on the valve, the valve opens automatically, which tends to make the pressure variation constantly hold in the fixed controllable worth, the worth is definitely the allowable highest strain distinction to be sure the pump function usually and to ensure in actual fact, the roots vacuum pump with overflow valve is really a variety of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially larger speed at reasonably lower inlet stress and it can be possessed overload self-protective perform. As it can be a pump of dry clearance seal construction, if a specific pumping velocity rate and an ultimate vacuum need to be obtained, it truly is important to provide a lower inlet pressure for minimizing the back movement, therefore, a pump must be backed in use, roots vacuum pump really should be begun soon right after its inlet pressure reaches a permissible worth for economization.
It can be allow to pick unique types of pump because the backing pump for factual necessities, such as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing massive volume of vapor, the liquid ring vacuum pump could be the great backing pump.