Design and Manufacture: Cast steel globe valve to BS 1873 and ASME B16.34; Forged steel globe valve to API 602. Inspection and Test: API 598. End flange dimension: ASME B16.5. BW end dimension:ASME B16.25 Socket-weld dimension: ASME B16.10. Face to face and end to end: ASME B16.10 Pressure-temperature ratings:ASME B16.34