FIELD: joints of polymeric pipes. SUBSTANCE: flange of metal-plastic pipe has longitudinal rods, lateral armature wound on them, and carrying member positioned within monolithic unit made of binding polymer. A thread is provided between turns of the lateral armature in the layer of polymeric binder. Step of the thread is equal to step of winding of the lateral armature with a shift in direction of the carrying member up to abutting against a turn of the lateral armature. The carrying member is also provided with a thread answered to the winding of the lateral armature. EFFECT: improved design. 2 dwg
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|---|---|---|---|
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