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 velocity inside the pump housing for suction and exhaust of gas. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in particular relative positions. They’re near to one another and to the housing with no actual contacting, so lubrication is unnecessary inside the working housing. The cautiously balanced operating components and high precision bevel wheels ensue the pump be operated stably and constantly beneath the problem of high-pressure difference. Dynamic seal element use our patent technologies and imported oil seals, the vibration amount of shaft within the shaft seals is managed to less than 0.02mm.
A gravity valve is installed between the suction and exhaust 
part of the pump. The perform with the gravity valve is as follows, once the stress variation amongst the suction and exhaust aspect is more than the bodyweight from the valve, the valve opens automatically, which makes the stress distinction normally hold in the fixed controllable worth, the worth is the allowable highest stress distinction to guarantee the pump get the job done normally 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 larger speed at fairly lower inlet stress and it truly is possessed overload self-protective perform. Since it can be a pump of dry clearance seal building, if a certain pumping pace fee and an ultimate vacuum need to be obtained, it really is required to provide a reduce inlet strain for lowering the back flow, thus, a pump need to be backed in use, roots vacuum pump needs to be begun quickly right after its inlet strain reaches a permissible worth for economization.
It truly is allow to select different types of pump as the backing pump for factual specifications, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gas containing massive quantity of vapor, the liquid ring vacuum pump may be the suitable backing pump.
