butterfly Valve Applicable Standards: Design & Manufacture according to : BS 1868 Face to Face according to : ASME B16.10 Flange Dimensions according to : ASME B16.5 Pressure & Temperature according to : ASME B16.34 Test & Inspection according to : API 6D / API 598 Visual Inspection according to : MSS SP-55 Marking according to : MSS SP-25
