Pipe connector of cutting sleeve type - is applicable medium: oil, water, gas and other non corrosive or corrosive medium, sealing pipe joint, with specifications of aluminium tube is more flexible, and pipe connection, has the characteristics of connecting firm, sealing performance is good, thus in the oil refining industry, chemical industry, light industry, textile, national defence, metallurgy, aviation, shipbuilding, etc system is widely used in; Can also be applied to all kinds of mechanical engineering, machine tool equipment such as hydraulic transmission line.