Cast Steel Globe Valves Class1 150/300/600/900/1500 Bolted bonnet, Outside screw & yoke, Rising stem, Plug type disc, Threaded seat ring. Description: Design and manufacture: ANSI B16.34 and Design and manufacture: BS1873 Test and inspection: API 598 . Face to face dimensions: ANSI B16.10 End flange dimensions: ANSI B16.5 Butt-welding ends: ANSI B16.25 Size: 2" ~ 16". Wooden case.