ROOTS VACUUM PUMPS
Operating Principle and Features: 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 gasoline. Two rotors are supported by two bearings and synchronized by a gear, which guarantees these two rotors in specified relative positions. These are close to to each other and to the housing with out real contacting, so lubrication is pointless from the working housing. The thoroughly balanced operating elements and higher precision bevel wheels ensue the pump be operated stably and continuously underneath the condition of high-pressure variation. Dynamic seal element utilizes our patent technologies and imported oil seals, the vibration quantity of shaft within the shaft seals is controlled to significantly less than 0.02mm. A gravity valve is installed involving the suction and exhaust part of the pump. The perform from the gravity valve is as follows, when the stress difference involving the suction and exhaust component is in excess of the bodyweight in the valve, the valve opens automatically, which helps make the stress distinction constantly retain inside a fixed controllable value, the value is definitely the allowable highest stress variation to ensure the pump perform normally and to ensure that in fact, the roots vacuum pump with overflow valve is a variety of overload self-protective pump. Series SYF roots vacuum pump with overflow valve has substantially greater speed at reasonably reduced inlet strain and it really is possessed overload self-protective perform. As it is usually a pump of dry clearance seal construction, if a certain pumping pace fee 15 and an greatest vacuum need to be obtained, it’s necessary to provide a lower inlet stress for cutting down the back flow, therefore, a pump needs to be backed in use, roots vacuum pump needs to be commenced quickly soon after its inlet strain reaches a permissible value for economization. It’s permit to select various 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 gasoline containing large quantity of vapor, the liquid ring vacuum pump is the suitable backing pump.