Operating Principle and Characteristics:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant speed within the pump housing for suction and exhaust of fuel. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in specified relative positions. They are close to to one another and to the housing without the need of actual contacting, so lubrication is pointless while in the doing work housing. The very carefully balanced working elements and substantial precision bevel wheels ensue the pump be operated stably and constantly underneath the condition of high-pressure distinction. Dynamic seal portion use our patent technological innovation and imported oil seals, the vibration volume of shaft on the shaft seals is managed to much less than 0.02mm.
A gravity valve is installed between the suction and exhaust a part of the pump. The perform from the gravity valve is as follows, when the pressure big difference amongst the suction and exhaust portion is above the bodyweight in the valve, the valve opens immediately, which helps make the pressure big difference constantly continue to keep within a fixed controllable worth, the worth is the allowable highest stress difference to ensure the pump get the job done generally and to ensure in truth, the roots vacuum pump with overflow valve can be a form of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially larger velocity at comparatively reduce inlet strain and it is possessed overload self-protective function. As it is really a pump of dry clearance seal development, if a particular pumping velocity fee and an greatest vacuum must be obtained, it truly is important to provide a reduce inlet strain for reducing the back flow, consequently, a pump has to be backed in use, roots vacuum pump really should be started off soon following its inlet stress reaches a permissible worth for economization.
It truly is permit to select different kinds of pump because the backing pump for factual demands, such as oil seal pump and liquid ring vacuum pump. When pumping the gas containing significant volume of vapor, the liquid ring vacuum pump is definitely the ideal backing pump.