Abstract: The clamping system is used to connect a first and a second tube whose facing ends have bearing surfaces protruding relative to their cylindrical external surface. The clamping system has a clampable collar and a seal. The collar includes a belt able to cooperate with the bearing surfaces of the tubes by this internal periphery delimiting a recess into which the bearing surfaces can be inserted. The seal is supported by the collar in the unclamped state of the latter and has an annular sealing portion which includes a metal washer and a non-metal based washer fixed to the metal washer. The metal washer can carry support lugs to support the washers relative to the collar.

Abstract: The clamping system is used to connect a first and a second tube whose facing ends have bearing surfaces protruding relative to their cylindrical external surface. The clamping system has a clampable collar and a seal. The collar includes a belt able to cooperate with the bearing surfaces of the tubes by this internal periphery delimiting a recess into which the bearing surfaces can be inserted. The seal is supported by the collar in the unclamped state of the latter and includes an annular sealing portion which includes a first washer and a second washer fixed to the first washer by retaining lugs carried by the first washer.

Abstract: A clamping collar including a belt carrying a retaining member and a hook configured to hook onto the retaining member to define a hooked clamping state of the collar. The hook has a front wall and a running part which connects the front wall to the belt. The retaining member carries a first abutment member able, during the hooking of the hook onto the retaining member, to come into abutment with a second abutment member to define a maximum advanced position of the hook relative to the retaining member. The belt has at least one abutment wall member which has the second abutment member. The second abutment member is located, forwardly in the direction of movement of the hook towards the retaining member, at most in the area of connection of the belt to the hook.

Abstract: A belt has a sealing ring disposed in an annular recess of the belt and two tightening lugs born by the ends of the belt. The edges of the recess form wedging steps for the edges of the sealing ring which substantially occupy the entire width of the recess. The ends of the belt exhibit a sealing arrangement which includes lateral tabs, that are formed at the second end and which extend widthwise on the belt, from one edge of the belt to the recess such that each lateral tab includes a part of one of the wedging steps.

Abstract: The device includes a belt (10), a sealing ring (22) disposed in an annular recess (11) of the belt and two tightening lugs (12A, 12B) born by the ends (10A, 10B) of the belt. The edges of the recess (11) form wedging steps for the edges of the sealing ring which substantially occupy the entire width of the recess. The ends (10A, 10B) of the belt exhibit a sealing arrangement which includes lateral tabs (28A, 28B), that are formed at the second end and which extend widthwise on the belt, from one edge of the belt to the recess (11) such that each lateral tab includes a part of one of the wedging steps.