Method of coupling plastic pipes by welding

摘要: The coupling of two tubular elements is achieved by welding them together energization an electrical resistance element, the one element comprising a male end, other socket end. operation carried out means composite connecting piece rings which are fitted on another, acting as support for bifilar and sheath. thus uniformly coated in plastic material accurately centered, thereby ensuring uniform heating welding. This method use discharge pipelines waste water rain conduits industrial fluids.