| 摘要 |
<p>The throttle valve fitting (1) has a promotion connecting piece (2) and a discharge connecting piece (3) having support edges (11,11') formed at their ends facing each other. The support edges forms a sealing seat (12,12') with shoulders (9) for inner lying gasket (5). A locking collar (6) embraces these support edges in the installed condition, and a butterfly valve (4) is supported over bearing journal (7) in the gasket in installed condition.</p> |
