December 8, 2020

Operating Principle and Capabilities:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a frequent 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 selected relative positions. These are close to to each other and also to the housing with no real contacting, so lubrication is unnecessary while in the functioning housing. The thoroughly balanced working elements and large precision bevel wheels ensue the pump be operated stably and continuously beneath the situation of high-pressure difference. Dynamic seal aspect use our patent engineering and imported oil seals, the vibration amount of shaft to the shaft seals is managed to significantly less than 0.02mm.
A gravity valve is installed involving the suction and exhaust a part of the pump. The perform on the gravity valve is as follows, when the pressure distinction between the suction and exhaust component is in excess of the excess weight with the valve, the valve opens automatically, which can make the strain big difference normally continue to keep inside a fixed controllable value, the value may be the allowable highest pressure big difference to guarantee the pump do the job usually and to ensure that in reality, the roots vacuum pump with overflow valve is usually a sort of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially greater speed at fairly reduced inlet strain and it truly is possessed overload self-protective function. Because it is a pump of dry clearance seal construction, if a certain pumping velocity charge and an greatest vacuum have to be obtained, it is actually needed to provide a lower inlet pressure for cutting down the back flow, hence, a pump have to be backed in use, roots vacuum pump ought to be started quickly following its inlet pressure reaches a permissible worth for economization.
It’s permit to select different varieties of pump because the backing pump for factual requirements, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing large level of vapor, the liquid ring vacuum pump is the great backing pump.