Working Principle and Features:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continual 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 sure relative positions. They are near to one another and to the housing with no actual contacting, so lubrication is pointless while in the operating housing. The meticulously balanced working parts and higher precision bevel wheels ensue the pump be operated stably and continuously beneath the condition of high-pressure variation. Dynamic seal element use our patent engineering and imported oil seals, the vibration amount of shaft within the shaft seals is managed to significantly less than 0.02mm.
A gravity valve is set up in between the suction and exhaust part of the pump. The function of the gravity valve is as follows, when the strain difference in between the suction and exhaust element is over the weight in the valve, the valve opens automatically, which makes the pressure big difference always retain within a fixed controllable value, the value may be the allowable highest pressure difference to make sure the pump operate usually and so that in actual fact, the roots vacuum pump with overflow valve is usually a sort of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably increased pace at rather reduce inlet strain and it’s possessed overload self-protective function. Because it is really a pump of dry clearance seal construction, if a particular pumping pace fee and an greatest vacuum must be obtained, it can be needed to provide a reduce inlet pressure for minimizing the back movement, hence, a pump has to be backed in use, roots vacuum pump should be commenced quickly soon after its inlet stress reaches a permissible value for economization.
It’s allow to pick distinct types of pump because the backing pump for factual demands, such as oil seal pump and liquid ring vacuum pump. When pumping the gas containing big volume of vapor, the liquid ring vacuum pump may be the ideal backing pump.