with a rigid pressure ring between the screwed member and the exterior of the flared pipe end

Full Title

Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts (F16L17/00 takes precedence; if using bolts or equivalent connecting means F16L23/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L47/00 ) > using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection > with a rigid pressure ring between the screwed member and the exterior of the flared pipe end

Child Classifications

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• F16L 19/055