Corrugated pipe according to the shape of the wave can be classified as spiral corrugated pipe and annular corrugated pipe, spiral corrugated pipe is a corrugated spiral arrangement of tube shaped shell, between the wavy and wavy with a helix angle, all the bellows can be together through a spiral line connecting; annular corrugated pipe is a corrugated closed circular tube shaped shell, between its ripple and ripple by the annular corrugated series and. The waveform can be divided into U shape, C shape, S shape, V shape and N shape. In order to improve the capacity of carrying capacity, the multi layer (also with three layers) corrugated pipe and corrugated pipe with reinforced ribs are issued.
Corrugated pipe according to the material can be divided into metal corrugated pipe and non metal corrugated pipe. Metal corrugated pipe, including metal bellows, bellows expansion joints, metal corrugated hose, such as the three forms. The metal corrugated pipe is mainly used as an element in the elastic component of the corrugated pipe. According to the processing technology can be divided into hydraulic molding corrugated pipe, welding molding corrugated pipe, corrugated pipe, corrugated pipe, rubber molding, spinning forming corrugated pipe, rolling forming corrugated pipe and mechanical expansion bellows and so on.
The non metal corrugated pipe comprises a quartz corrugated pipe, a rubber corrugated pipe, a polyester corrugated pipe and a plastic corrugated pipe. Non metallic corrugated pipe has the advantages of corrosion resistance, heat resistance, aging resistance and so on. The quartz, rubber, polyester and plastic corrugated pipe made of PTFE (Ploytetrafluoroethylene or referred to as F4) bellows are generally as part of the elastic component to the application, mainly to complete the survey, the connection, the different functions of compensation, sensing, sealing and shock absorption.
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