Operating Principle and Attributes:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a frequent velocity within the pump housing for suction and exhaust of fuel. Two rotors are supported by two bearings and synchronized by a gear, which assures these two rotors in specified relative positions. They may be close to to one another and also to the housing without having real contacting, so lubrication is needless during the functioning housing. The carefully balanced working parts and high precision bevel wheels ensue the pump be operated stably and constantly beneath the condition of high-pressure variation. Dynamic seal portion use our patent technology and imported oil seals, the vibration amount of shaft over the shaft seals is managed to much less than 0.02mm.
A gravity valve is set up concerning the suction and exhaust part of the pump. The perform of your gravity valve is as follows, when the strain big difference amongst the suction and exhaust part is in excess of the fat with the valve, the valve opens automatically, which makes the stress variation often preserve inside a fixed controllable worth, the worth is definitely the allowable highest stress distinction to make certain the pump get the job done commonly and so that the truth is, the roots vacuum pump with overflow valve is usually a type of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably larger pace at rather lower inlet pressure and it is possessed overload self-protective function. As it is often a pump of dry clearance seal development, if a particular pumping velocity charge and an ultimate vacuum need to be obtained, it’s necessary to supply a decrease inlet stress for decreasing the back movement, therefore, a pump has to be backed in use, roots vacuum pump need to be started soon soon after its inlet strain reaches a permissible value for economization.
It is actually allow to select diverse types of pump as the backing pump for factual necessities, such as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing significant quantity of vapor, the liquid ring vacuum pump is definitely the ideal backing pump.