Abstract

The invention relates to a flexible piping (101) for conveying fluids, that comprises an inner undulated pipe (102) around which are provided a pressure resistance braid (109) having a tubular shape and made of an adapted material as well as an external mechanical protection (1 13) having a tubular shape. The flexible piping further includes an anti-abrasion sheath (1 17) provided around the external mechanical protection (1 13).

IPC Classes  ?

• F16L 11/08 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
• F16L 11/115 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements not embedded in the wall

Abstract

The invention concerns a flexible tube (1) comprising a corrugated pipe (2) around which are mounted a pressure resistant braid (9) of tubular shape made of an adapted material as well as an outer tubular mechanical protection (13). The invention is characterized in that it comprises a tubular antifriction braid (6) arranged between the corrugated pipe and the pressure resistant braid, said antifriction braid being made of an adapted material whereof the hardness and/or the friction coefficient are lower than those of the material used for making the pressure resistant braid and at least one tubular damping layer (12) arranged between the pressure resistant braid and the outer mechanical protection.

IPC Classes  ?

• F16L 11/115 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements not embedded in the wall