Operating Principle and Attributes:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a constant pace within the pump housing for suction and exhaust of fuel. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in certain relative positions. They may be close to to each other and to the housing with out real contacting, so lubrication is unnecessary inside the functioning housing. The cautiously balanced working elements and substantial precision bevel wheels ensue the pump be operated stably and constantly underneath the affliction of high-pressure variation. Dynamic seal aspect use our patent technologies and imported oil seals, the vibration volume of shaft to the shaft seals is controlled to significantly less than 0.02mm.
A gravity valve is put in involving the suction and exhaust part of the pump. The perform in the gravity valve is as follows, when the pressure variation in between the suction and exhaust part is in excess of the weight from the valve, the valve opens instantly, which can make the strain big difference usually preserve within a fixed controllable value, the worth is the allowable highest stress variation to ensure the pump do the job ordinarily and to ensure in fact, the roots vacuum pump with overflow valve is a sort of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially greater pace at comparatively reduced inlet pressure and it is possessed overload self-protective function. Since it can be a pump of dry clearance seal construction, if a specific pumping speed charge and an ultimate vacuum have to be obtained, it can be important to provide a reduce inlet pressure for decreasing the back flow, consequently, a pump needs to be backed in use, roots vacuum pump need to be begun quickly after its inlet strain reaches a permissible value for economization.
It’s permit to select diverse kinds of pump since the backing pump for factual needs, such as oil seal pump and liquid ring vacuum pump. When pumping the gas containing massive quantity of vapor, the liquid ring vacuum pump is the best backing pump.