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Gate Valve(check valve, ball valve) Features: 1) Construction features: rising stem, flexible solid wedge, bolted bonnet, threaded, or welded seat ring2) Standard compliance: a) Basic design: API 600 b) Face to face dimension: ANSI B16.10 c) End to end dimension: ANSI B16.10 d) Flanged ends dimensions: i) 2 - 24" to ANSI B16.5 ii) 26 - 36" 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) 26 - 36" to manufacturers' standard3) Manufacturing to NACE MR 01-75 on request