Forged Steel Valves Range: gate valves, globe valves, check valve, Y-type globe valves, and Y-type check valves Type: flange ends, inner screwed ends, and socket welding Class: 150 to 600lbs, 900 to 1,500lbs, and 2,500lbs Design: ASME/ANSI B16.34, API 600, and API 602 Ends connection: Flange dimension: ASME/ANSI B16.5 (RF) SW dimension: ANSI B16.11 Screwed dimension: ANSI B16.20 BW dimension: ANSI B16.25 Structural feature: Bolt bonnet (BB), outside screwed, and yoke (OS and Y) Welded bonnet (WB), outside screwed, and yoke (OS and Y) Pressure-in bonnet (PS), outside screwed, and yoke (OS and Y) Body material: A105, F304, F304L, F316, and F316L Inspection and test: API 598, API6D, CE, and ISO9001