| 摘要 |
<p>The end of the spring (12) directed towards the ball (8) houses with sufficient radial clearance in a cup or basket (10) which slides axially guided in the seat (6) of the body of the valve, which is provided with lateral openings (11) for the passage of the fluid and which is carrying at the centre of its base, a recess impression (9) for the co-operation with the ball (8). The other end of the spring (12) opposed to the one which is toward the ball, surrounds a centring projection (15) obtained on the reaction body (14) which carries the openings (16, 16') for the passage of the liquid which flows through the valve in the opening phase. A similar centring projection (13, 13') for the spring (12) may be provided also on the internal face of the bottom of the cup or basket (10) above mentioned. <IMAGE></p> |
