| 摘要 |
<p>An intercepting valve of a fluid comprises a valve obturator (18) rotatable between a closed valve position and an open valve position. The valve further comprises a bypass duct (30) made in the valve body in order to fluidically connect the inlet duct and the outlet duct of the valve. A bypass obturator (32) is placed in said bypass duct. A command element (40) is suitable to cause a rotation of the valve obturator and of the bypass obturator, said command element being rotatable between a first position, in which both the valve obturator and the bypass obturator are in the closed position, and a second position, in which the valve obturator is in the open position and the bypass obturator is in the closed position, passing through an intermediate position, in which the valve obturator is still in the closed position while the bypass obturator is in the open position.</p> |
