DIFF Subgroup
F16L 19/03 with flexible sealing rings between the sealing surfaces
Introduced: July 1974
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 > Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member > with flexible sealing rings between the sealing surfaces