| 摘要 |
PURPOSE:To provide a pressure regulating valve which can eliminate the need of separately disposing an emergency cutoff valve by disposing a pin capable of freely elevating at a middle portion of an operation rod piercing in such a manner as to reciprocate between an inner chamber and a side wall and bringing the uper and lower ends of the pin into contact with head portions of valve guards in such a manner as to freely engage and disengage. CONSTITUTION:A pair of valve gaurds 9, 10 have conical head poritons 9a, 10a opposed to each other in an inner chamber of a valve and leg portions 9b, 10b pieced through the center portions of upper and lower partition walls 1a, 1b in such a manner as to freely elevate. The respective ends of the valve guards are brought into contact with the lower surface of an interlocking element 7 and the upper end of a valve rod 2b, reepectively. An operation rod 11 piecing wide walls is disposed in the inner chamber, and a through hole 11a bored through the middle portion of the rod 11 is provided with a pin 12 brought into contact at both ends thereof with head portions 9c, 10c of the valve guards 9, 10. |
