| 摘要 |
A valve (1) comprises a body (2), provided with a plurality of openings (3, 4, 5, 55) through which a pressurised fluid can enter or exit said valve (1) and cavity means (8, 9, 26, 54), made in the body (2) and suitable for receiving the fluid. The cavity means (8, 9, 26, 54) comprises a first cavity (8) and a second cavity (9), the first cavity (8) comprising a portion (10) suitable for receiving a containing element (16) and the second cavity (9) comprising an end portion (9b) suitable for receiving a closing element (46). The valve (1) further comprises connecting means (58) suitable for making the portion (10) and the end portion (9b) reciprocally communicating. |
