Ball Valves

Ball valves, like gate valves, are used in open or close position, not recommended for intermediate positions. Unlike gate valves, ball valves are quarter turn valves which closure member rotates very fast from full-open to full-closed position. DESIGN AND MANUFACTURING: Ball valves are designed and manufactured according to the following international codes and standards:

Category:

Description

DESIGN AND MANUFACTURING:

ASME B16.34 valves – flanged, threaded, and welding end
API-6D Specification for pipeline and piping valves
ISO 14313 Petroleum and natural gas industries, pipeline transportation systems, pipeline valves
API 608 metal ball valves – flanged, threaded, and welding end
ISO 17292 (outdated BS-5351) Metal ball valves for petroleum, petrochemical and allied industries

INSPECTION AND TEST:

API 598 valve inspection and testing
API-6D Specification for pipeline and piping valves
ISO 14313 Petroleum and natural gas industries, pipeline transportation systems, pipeline valves

FLANGE DIMENSION:

ASME B16.5 pipe flanges and flanged fittings
ASME B16.47 large diameter steel flanges: NPS 26 through NPS 60
MSS SP 44 steel pipeline flanges

WELDED OR THREADED ENDS:

ASME B16.25 buttwelding ends
ASME B16.11 forged steel fittings, socket-welding and threaded
ASME B1.20.1 pipe threads general purpose

FACE TO FACE AND END TO END

ASME B16.10 face to face and end-to-end dimensions of valves
API-6D Specification for pipeline and piping valves
ISO 14313 Petroleum and natural gas industries, pipeline transportation systems, pipeline valves

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