March 1, 2021

Working Principle and Attributes: The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant speed inside the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which assures these two rotors in certain relative positions. They are near to each other and also to the housing with out actual contacting, so lubrication is unnecessary during the operating housing. The carefully balanced working components and high precision bevel wheels ensue the pump be operated stably and constantly below the situation of high-pressure difference. Dynamic seal component utilizes 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 in the gravity valve is as follows, once the pressure distinction between the suction and exhaust part is in excess of the excess weight from the valve, the valve opens instantly, which tends to make the stress big difference constantly continue to keep in a fixed controllable value, the worth could be the allowable highest strain distinction to guarantee the pump operate commonly and to ensure that the truth is, the roots vacuum pump with overflow valve is usually a kind of overload self-protective pump. Series SYF roots vacuum pump with overflow valve has considerably greater pace at comparatively reduce inlet stress and it’s possessed overload self-protective function. Because it is often a pump of dry clearance seal construction, if a certain pumping speed price 15 and an ultimate vacuum have to be obtained, it can be essential to provide a reduced inlet stress for decreasing the back movement, for that reason, a pump has to be backed in use, roots vacuum pump must be started off soon right after its inlet pressure reaches a permissible worth for economization. It really is allow to select distinct kinds of pump because the backing pump for factual requirements, such as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing huge quantity of vapor, the liquid ring vacuum pump will be the great backing pump.