Operating Principle and Features:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continuous speed inside the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which assures these two rotors in sure relative positions. They are really close to to each other and also to the housing without actual contacting, so lubrication is unnecessary in the functioning housing. The thoroughly balanced working components and high precision bevel wheels ensue the pump be operated stably and continuously beneath the condition of high-pressure difference. Dynamic seal element use our patent engineering and imported oil seals, the vibration amount of shaft around the shaft seals is controlled to significantly less than 0.02mm.
A gravity valve is installed involving the suction and exhaust a part of the pump. The function of your gravity valve is as follows, when the strain difference amongst the suction and exhaust part is over the weight in the valve, the valve opens immediately, which can make the pressure big difference constantly hold within a fixed controllable value, the value could be the allowable highest stress big difference to ensure the pump work generally and in order that actually, the roots vacuum pump with overflow valve is often a variety of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably larger pace at reasonably reduced inlet stress and it truly is possessed overload self-protective function. Because it is really a pump of dry clearance seal development, if a certain pumping speed price and an greatest vacuum must be obtained, it really is important to supply a lower inlet strain for decreasing the back flow, thus, a pump has to be backed in use, roots vacuum pump needs to be started off quickly following its inlet stress reaches a permissible value for economization.
It is allow to pick different types of pump since the backing pump for factual demands, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing significant quantity of vapor, the liquid ring vacuum pump would be the best backing pump.