Operating Principle and Attributes:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant velocity within the pump housing for suction and exhaust of gasoline. Two rotors are supported by two bearings and synchronized by a gear, which assures these two rotors in certain relative positions. They are really close to to one another and also to the housing with no real contacting, so lubrication is pointless inside the working housing. The cautiously balanced working parts and high precision bevel wheels ensue the pump be operated stably and continuously beneath the issue of high-pressure distinction. Dynamic seal aspect use our patent technology and imported oil seals, the vibration amount of shaft to the shaft seals is controlled to much less than 0.02mm.
A gravity valve is put in among the suction and exhaust part of the pump. The perform of your gravity valve is as follows, when the stress distinction between the suction and exhaust portion is over the weight on the valve, the valve opens automatically, which helps make the pressure distinction normally preserve within a fixed controllable value, the worth could be the allowable highest pressure big difference to ensure the pump do the job ordinarily and so that in reality, the roots vacuum pump with overflow valve is often a kind of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably higher pace at comparatively decrease inlet pressure and it truly is possessed overload self-protective function. Because it is really a pump of dry clearance seal construction, if a specific pumping velocity fee and an greatest vacuum should be obtained, it really is required to provide a reduce inlet stress for lowering the back movement, hence, a pump needs to be backed in use, roots vacuum pump really should be began quickly right after its inlet pressure reaches a permissible worth for economization.
It can be permit to pick unique kinds of pump as the backing pump for factual necessities, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing huge volume of vapor, the liquid ring vacuum pump is the best backing pump.