A nonmetallic pipeline for conveying a fluid medium, specifically a non-adhesive pultruded composite tube provided with a liner layer (1) formed through extrusion molding of high polymer. Arranged on the outer surface of the liner layer (1) is a hoop layer (2) formed by directly winding and curing resin and high-strength fibers thereupon; a framework layer (3) is formed on the hoop layer by directly winding a resin and high-strength fiber pultruded composite strip thereupon at an angle of 30°-70° to the axial direction; a wear-resistant layer (4) is formed on the framework layer by winding tensile water cloth thereupon at an angle of 70°-85° to the axial direction; a tensile armor layer (5) is formed on the wear-resistant layer by directly winding a resin and high-strength fiber pultruded strip thereupon at an angle to the axial direction; an outer protective layer (6) is formed on the tensile armor layer by winding an ageing-resistant high polymer extruded composite strip thereupon. The present composite tube is simple in structure, of logical design, low in cost, and easy to manufacture while featuring high compression strength and tensile strength, high corrosion resistance and bending resistance, and being convenient to transport and deploy and having a long service life. Due to relative movement between layers, the length of the product can reach 2 km, continuous laying in a long distance can be realized, and connection between tubes is reduced.
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