Joints in which sealing surfaces are pressed together by means of a member

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F16Engineering elements F16LPIPES JOINTS OR FITTINGS FOR PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING MEANS FOR THERMAL INSULATION IN GENERAL

F16L19/00Joints in which sealing surfaces are pressed together by means of a member

F16L19/005comprising locking means for the threaded member F16L19/02Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member F16L19/0206the collar not being integral with the pipe F16L19/0212using specially adapted sealing means F16L19/0218comprising only sealing rings F16L19/0225without sealing rings F16L19/0231with specially adapted means for positioning the threaded member behind the collar F16L19/0237specially adapted for use with attachments F16L19/0243specially adapted for use with coated pipes F16L19/025the pipe ends having integral collars or flanges F16L19/028the collars or flanges being obtained by deformation of the pipe wall F16L19/0283and having a bell-mouthed shape F16L19/0286and being formed as a flange F16L19/04using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection F16L19/041the ring being an insert F16L19/043with additional sealing means F16L19/045consisting of cutting edges on one of the connecting parts which penetrate into the wall of the pipe F16L19/046consisting of a soft ring F16L19/048specially adapted for use with attachments F16L19/05with a rigid pressure ring between the screwed member and the exterior of the flared pipe end F16L19/055the pressure ring being rotatably connected to the threaded member F16L19/06in which radial clamping is obtained by wedging action on non-deformed pipe ends F16L19/061a pressure ring being arranged between the clamping ring and the threaded member or the connecting member F16L19/062specially adapted for use with attachments F16L19/063by means of conical threaded surfaces F16L19/065the wedging action being effected by means of a ring F16L19/0653the ring being rotatably connected to one of the connecting parts F16L19/0656integral with one of the connecting parts F16L19/07adapted for use in socket or sleeve connections F16L19/075specially adapted for spigot-and-socket joints for pipes of the same diameter F16L19/08with metal rings which bite into the wall of the pipe F16L19/083the longitudinal cross-section of the ring not being modified during clamping F16L19/086with additional sealing means F16L19/10the profile of the ring being altered F16L19/103with more than one ring per pipe end being used F16L19/106the ring comprising a shoulder against which the pipe end abuts F16L19/12with additional sealing means F16L19/14the rings being integral with one of the connecting parts