Design Pr. & Temp Rating Face to Face & End to End Dimensions Flange Ends Butt Weld Ends Testing & Inspection : : : : : : ASME B16.34 / BS 1868 ANSI B16.34 ANSI B16.10 (upto 24") ASME B16.5 ASME B16.25 API 598 / EN 12266 PART 1 (BS 6755 PART 1) API...