Product Description Specifications: 1) Construction features: bolted, cover, swing type disc, threaded, or welded seat ring 2) Standard compliance: a) Basic design: BS 1868 b) Face to face dimension: ANSI B16.10 c) End to end dimension: ANSI B16.10 d) Flanged ends: I) 2 - 24" to ANSI B16.5 II) 24" to MSS SP-44 III) API 605 on request IV) B.W. ends to ANSI B16.25 e) Shell wall thickness: I) 2 - 24" to API 600 II) > 24" to manufacturer's standard 3) Manufacturing to NACE MR 01-75 on request