Operating Principle and Capabilities:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continuous pace within 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 selected relative positions. These are near to each other and to the housing without real contacting, so lubrication is needless in the functioning housing. The thoroughly balanced working parts and higher precision bevel wheels ensue the pump be operated stably and constantly below the issue of high-pressure distinction. Dynamic seal aspect use our patent technologies and imported oil seals, the vibration volume of shaft about the shaft seals is managed to significantly less than 0.02mm.
A gravity valve is put in between the suction and exhaust part of the pump. The perform of your gravity valve is as follows, once the pressure big difference among the suction and exhaust aspect is over the bodyweight with the valve, the valve opens automatically, which tends to make the pressure big difference constantly hold within a fixed controllable worth, the value would be the allowable highest stress variation to make certain the pump perform commonly and in order that the truth is, the roots vacuum pump with overflow valve is actually a form of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably higher speed at somewhat reduce inlet strain and it can be possessed overload self-protective perform. As it is usually a pump of dry clearance seal building, if a particular pumping pace price and an greatest vacuum need to be obtained, it really is important to supply a decrease inlet pressure for minimizing the back movement, thus, a pump have to be backed in use, roots vacuum pump must be begun quickly following its inlet strain reaches a permissible value for economization.
It’s permit to select unique types of pump as the backing pump for factual specifications, such as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing huge amount of vapor, the liquid ring vacuum pump will be the suitable backing pump.