the collars or flanges being obtained by deformation of the pipe wall

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 > Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member > the pipe ends having integral collars or flanges > the collars or flanges being obtained by deformation of the pipe wall

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 ) > Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member > the pipe ends having integral collars or flanges > the collars or flanges being obtained by deformation of the pipe wall