Root Vacuum Pumps

Working Principle and Features:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a continual pace inside 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. They may be near to each other and also to the housing without having real contacting, so lubrication is unnecessary during the operating housing. The thoroughly balanced operating parts and higher precision bevel wheels ensue the pump be operated stably and continuously below the issue of high-pressure variation. Dynamic seal part use our patent technologies and imported oil seals, the vibration quantity of shaft about the shaft seals is managed to significantly less than 0.02mm.
A gravity valve is set up among the suction and exhaust part of the pump. The function on the gravity valve is as follows, once the stress difference between the suction and exhaust part is over the weight of your valve, the valve opens automatically, which makes the stress variation normally maintain in a fixed controllable value, the worth may be the allowable highest pressure big difference to make certain the pump function ordinarily and to ensure that actually, 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 higher speed at rather decrease inlet stress and it truly is possessed overload self-protective perform. Since it is often a pump of dry clearance seal building, if a specific pumping speed price and an ultimate vacuum need to be obtained, it is actually essential to supply a reduced inlet stress for minimizing the back movement, for that reason, a pump needs to be backed in use, roots vacuum pump ought to be began quickly immediately after its inlet strain reaches a permissible value for economization.
It is actually allow to pick distinct types of pump since the backing pump for factual requirements, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing huge quantity of vapor, the liquid ring vacuum pump may be the best backing pump.