Pipe production is divided into PE solid wall pipe, corrugated pipe, drip irrigation belt, PPR pipe, PERT floor heating pipe, steel wire reinforced pipe, steel belt winding pipe, carbon pipe, gas pipe, communication pipe, polyurethane foam insulation pipe, etc. The melt pump for pipe adopts high precision gear gap, which can effectively reduce the pressure of the barrel during the extrusion process, reduce the friction between the screw and the barrel, reduce the load of the thrust bearing of the gear box, and can effectively solve the problem of exhausting and bubbling material from the extru