December 8, 2020

Working Principle and Characteristics:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continuous speed inside the pump housing for suction and exhaust of fuel. Two rotors are supported by two bearings and synchronized by a gear, which guarantees these two rotors in particular relative positions. They may be close to to each other and to the housing without the need of actual contacting, so lubrication is unnecessary from the functioning housing. The very carefully balanced working elements and large precision bevel wheels ensue the pump be operated stably and constantly underneath the issue of high-pressure big difference. Dynamic seal component use our patent technology and imported oil seals, the vibration level of shaft on the shaft seals is controlled to much less than 0.02mm.
A gravity valve is installed amongst the suction and exhaust part of the pump. The function of your gravity valve is as follows, once the stress distinction involving the suction and exhaust portion is over the bodyweight of the valve, the valve opens automatically, which makes the stress distinction generally keep in a fixed controllable value, the worth may be the allowable highest strain distinction to be sure the pump work typically and to ensure that in fact, the roots vacuum pump with overflow valve is often a form of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably increased velocity at somewhat reduced inlet strain and it’s possessed overload self-protective perform. Since it is often a pump of dry clearance seal development, if a specific pumping velocity rate and an greatest vacuum have to be obtained, it is needed to provide a lower inlet strain for cutting down the back flow, consequently, a pump need to be backed in use, roots vacuum pump need to be started off soon just after its inlet stress reaches a permissible value for economization.
It is actually allow to pick diverse types of pump as the backing pump for factual necessities, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the fuel containing large amount of vapor, the liquid ring vacuum pump would be the suitable backing pump.