Operating Principle and Functions:
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 ensures these two rotors in specified relative positions. They are really close to to each other and to the housing with out real contacting, so lubrication is needless inside the doing work housing. The thoroughly balanced operating elements and large precision bevel wheels ensue the pump be operated stably and constantly beneath the affliction of high-pressure variation. Dynamic seal component use our patent technologies and imported oil seals, the vibration quantity of shaft on the shaft seals is controlled to less than 0.02mm.
A gravity valve is set up involving the suction and exhaust a part of the pump. The perform of the gravity valve is as follows, when the pressure variation amongst the suction and exhaust portion is in excess of the bodyweight on the valve, the valve opens instantly, which can make the stress variation usually maintain in the fixed controllable worth, the value could be the allowable highest pressure big difference to ensure the pump operate normally and in order that 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 considerably higher velocity at rather lower inlet pressure and it’s possessed overload self-protective perform. As it is usually a pump of dry clearance seal construction, if a certain pumping pace charge and an ultimate vacuum need to be obtained, it can be important to supply a reduce inlet pressure for cutting down the back movement, thus, a pump need to be backed in use, roots vacuum pump really should be commenced quickly immediately after its inlet pressure reaches a permissible worth for economization.
It truly is allow to pick unique types of pump as the backing pump for factual necessities, such as oil seal pump and liquid ring vacuum pump. When pumping the gas containing significant level of vapor, the liquid ring vacuum pump is the suitable backing pump.