| 摘要 |
<p>Pressurised-fluid tap for multiple fillings, in particular for a pressurised-gas reservoir, comprising a body (1) having a base (4) intended to be fixed at an orifice of a pressurised reservoir, the body (1) defining an internal circuit (5) for drawing-off/filling fluid extending between an upstream end (2) intended to be connected with the storage space of a reservoir and a downstream end (3) intended to be connected with a user member receiving or dispensing gas, the tap comprising, disposed in series in the circuit (5), a residual-pressure valve (6) and an isolation valve (7) distinct from the residual-pressure valve (6), the tap comprising a member (8) actuating the isolation valve (7) in order to selectively control the obstruction or not of the circuit (5), the actuation member (8) being able to move between a first so-called "closure" position in which the isolation valve (7) obstructs the circuit (5) and a second so-called "drawing-off" position in which the isolation valve (7) does not obstruct the circuit (5), characterised in that the residual-pressure valve (6) is situated upstream of the isolation valve (7) and in that the actuation member (8) can be moved into a third so-called "filling" position in which the actuation member forces the isolation valve (7) not to obstruct the circuit (5) and in which the residual-pressure valve (6) is moved into an opening position not obstructing the circuit (5), whatever the pressure differential on either side of the residual-pressure valve (6).</p> |
