China Cast Steel Globe Valvehttps://www.onevalves.com/cast-steel-flange-globe-valve-rising-stem.html: BS 1873, ASME B16.34 standard, flange, butt welding end connection, outside screw and yoke, bolted bonnet, rising stem. Detail Information Specification Design and manufacture: BS 1873, ASME B16.34 Face to face: ASME B16.10 Flange ends: ASME B16.5 Butt welding ends: ASME B16.25 Inspection and Test: API 598 Features Straight pattern body design OS & Y, Outside screw and yoke BB, Bolted bonnet Rising stem and handwheel Loose disc, Choice of plg or ball