December 8, 2020

Operating Principle and Characteristics:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a frequent speed inside the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which guarantees these two rotors in sure relative positions. They are really near to one another and to the housing with out real contacting, so lubrication is needless while in the working housing. The carefully balanced operating parts and high precision bevel wheels ensue the pump be operated stably and constantly underneath the condition of high-pressure distinction. Dynamic seal aspect use our patent technological innovation and imported oil seals, the vibration amount of shaft on the shaft seals is controlled to significantly less than 0.02mm.
A gravity valve is set up concerning the suction and exhaust a part of the pump. The perform from the gravity valve is as follows, once the stress difference concerning the suction and exhaust component is more than the weight of the valve, the valve opens instantly, which can make the stress big difference generally preserve within a fixed controllable value, the worth is the allowable highest stress difference to ensure the pump do the job usually and to ensure that in truth, 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 larger velocity at fairly lower inlet stress and it truly is possessed overload self-protective perform. Because it is usually a pump of dry clearance seal building, if a specific pumping pace charge and an greatest vacuum need to be obtained, it is actually required to supply a reduce inlet stress for lowering the back flow, therefore, a pump must be backed in use, roots vacuum pump really should be began quickly following its inlet stress reaches a permissible value for economization.
It’s allow to select distinctive types of pump because the backing pump for factual specifications, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing big level of vapor, the liquid ring vacuum pump could be the best backing pump.