ROOTS VACUUM PUMPS
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 within the pump housing for suction and exhaust of fuel. Two rotors are supported by two bearings and synchronized by a gear, which guarantees these two rotors in certain relative positions. They may be close to to one another and to the housing with out real contacting, so lubrication is pointless during the functioning housing. The thoroughly balanced working elements and high precision bevel wheels ensue the pump be operated stably and continuously below the ailment of high-pressure variation. Dynamic seal part makes use of our patent technology and imported oil seals, the vibration level of shaft on the shaft seals is managed to significantly less than 0.02mm. A gravity valve is installed in between the suction and exhaust part of the pump. The perform on the gravity valve is as follows, once the stress big difference among the suction and exhaust component is more than the weight on the valve, the valve opens automatically, which helps make the stress big difference constantly continue to keep within a fixed controllable value, the worth could be the allowable highest stress variation to be sure the pump operate ordinarily and so that in truth, the roots vacuum pump with overflow valve is often a sort of overload self-protective pump. Series SYF roots vacuum pump with overflow valve has substantially larger speed at comparatively reduced inlet pressure and it truly is possessed overload self-protective function. Since it is usually a pump of dry clearance seal development, if a particular pumping pace fee 15 and an greatest vacuum have to be obtained, it can be necessary to supply a lower inlet stress for lowering the back movement, consequently, a pump should be backed in use, roots vacuum pump needs to be commenced soon after its inlet stress reaches a permissible worth for economization. It is permit to select different varieties of pump since the backing pump for factual prerequisites, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gas containing substantial level of vapor, the liquid ring vacuum pump could be the perfect backing pump.