Operating Principle and Features:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continuous pace within 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. These are close to to one another and to the housing without the need of actual contacting, so lubrication is pointless while in the operating housing. The thoroughly balanced operating parts and high precision bevel wheels ensue the pump be operated stably and continuously beneath the affliction of high-pressure variation. Dynamic seal element use our patent engineering and imported oil seals, the vibration level of shaft on the shaft seals is controlled to less than 0.02mm.
A gravity valve is put in among the suction and exhaust a part of the pump. The perform from the gravity valve is as follows, once the strain distinction concerning the suction and exhaust part is more than the weight of your valve, the valve opens automatically, which helps make the stress difference usually hold in a fixed controllable value, the value would be the allowable highest strain distinction to guarantee the pump work normally and to ensure that in fact, the roots vacuum pump with overflow valve is actually a kind of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has substantially greater pace at reasonably decrease inlet pressure and it really is possessed overload self-protective function. Since it is a pump of dry clearance seal development, if a particular pumping pace rate and an ultimate vacuum must be obtained, it can be needed to supply a lower inlet pressure for reducing the back flow, hence, a pump must be backed in use, roots vacuum pump ought to be commenced soon after its inlet pressure reaches a permissible value for economization.
It’s permit to pick different types of pump because the backing pump for factual specifications, such as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing big amount of vapor, the liquid ring vacuum pump may be the excellent backing pump.