December 8, 2020

Operating Principle and Functions:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant 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 selected relative positions. They may be near to one another and to the housing with no actual contacting, so lubrication is pointless from the functioning housing. The very carefully balanced operating components and high precision bevel wheels ensue the pump be operated stably and constantly underneath the issue of high-pressure difference. Dynamic seal aspect use our patent engineering and imported oil seals, the vibration volume of shaft on the shaft seals is managed to significantly less than 0.02mm.
A gravity valve is set up in between the suction and exhaust a part of the pump. The function in the gravity valve is as follows, once the stress big difference among the suction and exhaust element is over the fat with the valve, the valve opens immediately, which can make the strain distinction generally maintain inside a fixed controllable value, the worth would be the allowable highest strain distinction to make sure the pump perform generally and in order that in fact, the roots vacuum pump with overflow valve is actually a variety of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially larger pace at fairly decrease inlet pressure and it is possessed overload self-protective perform. Because it is often a pump of dry clearance seal development, if a specific pumping pace charge and an greatest vacuum should be obtained, it is necessary to provide a reduce inlet strain for lowering the back flow, hence, a pump needs to be backed in use, roots vacuum pump ought to be begun quickly following its inlet stress reaches a permissible worth for economization.
It is allow to pick different types of pump because the backing pump for factual requirements, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gas containing substantial volume of vapor, the liquid ring vacuum pump will be the suitable backing pump.