<p>A rising stem plug valve has a valve body housing that receives a plug. A handle assembly is attached to the plug far rotational movement of the plug between operative positions. A control assembly is attached to the plug for unseating and seating of the plug within the valve body. The plug includes at least one plug portion having openings corresponding to an interior configuration. Ring cords substantially surround the openings in the plug to create a seal therearound. The plug may include upper and lower plus portions with an untapered portion located between them. An O-ring is located on the untapered portion of the plug to maintain separation between the upper and lower plug portions.</p>
申请公布号
CA2328119(C)
申请公布日期
2004.06.22
申请号
CA20002328119
申请日期
2000.12.12
申请人
TM INDUSTRIAL SUPPLY, INC.
发明人
JACKSON, RICKY L.;O'CONNELL, MICHAEL S.;ZEMCIK, LAWRENCE R.;STEINER, CARL A.