| 摘要 |
The invention relates to a body (2) in which are arranged: a recess (8) in which at least one bearing is placed, a pipe (3) suitable for having a fluid pass therethrough, and a shutter (5) which is pivotably mounted in the pipe (2) by means of a shaft (7) which is received with radial clearance in the bearing, an open position, and a closed position in which said shutter engages with the body (2) directly via a first contact area (11) of the shutter located on a first side of the shaft (7), and indirectly via an intermediate part (20) which is at least partially inserted between the body (2) and a second area (15) of the shutter (5) located on a second side of the shaft (7) opposite said first side, the movement of the shutter (5) from the open position to the closed position following a radial movement of the shaft (7) in the bearing. |
