REPLACEABLE VALVE SEAT RING WITH ENHANCED FLOW DESIGN

摘要

A REPLACEABLE VALVE SEAT RING (30) FOR A VALVE ASSEMBLY HAS AN ANNULAR RING BODY (38) AND AN OPEN FLOW PASSAGE (42) EXTENDING THROUGH THE RING BODY. A SEATING SURFACE (32) IS PROVIDED ON THE RING BODY (38) ADJACENT ONE END OF THE FLOW PASSAGE. A TOOL ACCEPTING REGION (50) OF THE FLOW PASSAGE IS FORMED CONCENTRIC WITH AND AT LEAST PARTIALLY ALONG THE FLOW PASSAGE (42). THE TOOL ACCEPTING REGION (50) IS ADAPTED TO RECEIVE A STANDARD TOOL HEAD THEREIN FOR INSTALLING AND REMOVING THE VALVE SEAT RING (30). (FIG. 2)