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 continual velocity within the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which guarantees these two rotors in certain relative positions. These are near to each other and also to the housing without actual contacting, so lubrication is unnecessary from the functioning housing. The meticulously balanced working elements and higher precision bevel wheels ensue the pump be operated stably and continuously below the ailment of high-pressure distinction. Dynamic seal component use our patent engineering and imported oil seals, the vibration level of shaft about the shaft seals is controlled to significantly less than 0.02mm.
A gravity valve is set up between the suction and exhaust a part of the pump. The perform in the gravity valve is as follows, once the strain big difference involving the suction and exhaust aspect is above the bodyweight in the valve, the valve opens automatically, which helps make the pressure distinction constantly maintain within a fixed controllable value, the value is definitely the allowable highest strain big difference to make certain the pump do the job commonly and so that the truth is, the roots vacuum pump with overflow valve is a type of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially greater pace at somewhat lower inlet pressure and it really is possessed overload self-protective perform. Since it is a pump of dry clearance seal construction, if a specific pumping speed price and an ultimate vacuum need to be obtained, it can be important to provide a decrease inlet strain for minimizing the back movement, thus, a pump should be backed in use, roots vacuum pump must be commenced quickly just after its inlet strain reaches a permissible worth for economization.
It’s allow to select different varieties of pump since the backing pump for factual specifications, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing large quantity of vapor, the liquid ring vacuum pump could be the suitable backing pump.