| 摘要 |
<p>GATE VALVE There is disclosed a gate valve having a gate movable within an elongated, rectangular section of a pressure containing body, and a hoop-like reinforcing flange disposed about the body section near one end thereof and arranged perpendicularly to the length of the body. Welds secure the inner edges of the flange welded to only intermediate portions of the long front walls of the body section, and bolts are provided for drawing together all four sides of the reinforcing flange and a mounting flange on a bonnet assembly. A reinforcing means connects the unsecured portions of the reinforcing flange to the front walls of the body section in such a manner as to have relatively high rigidity with respect to forces perpendicular to the reinforcing flange and relatively low rigidity with respect to forces which result from relative movement between the body and flange in directions generally parallel to the reinforcing flange.</p> |
