Technical Specifications
Followed By ‘Wesmec’

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ASME (AMERICAN SOCIETY OF MECHANICAL ENGINEERS):

ASME B31.1: Power Piping.

ASME B31.3: Process Piping.

ASME B1.1: Unified Inch Screw Threads.

ASME B1.20.1: Pipe Threads, General Purpose (Inch).

ASME B16.5: Piping Flanges and Flanged Fittings.

ASME B16.9: Factory Made Wrought Steel Butt Welding Fittings.

ASME B16.10: Face to Face and End to End dimensions of Valves.

ASME B16.11: Forged Fittings, Socket Welding and Threaded.

ASME B16.20: Metallic Gasket for Pipe Flanges-Ring Type Joint, Spiral Wound and Jacketed.

ASME B16.21: Non Metallic Gaskets for Pipe Flanges.

ASME B16.25: Butt Welding Ends.

ASME B16.34: Valves-Flanged, Threaded and Welding End.

ASME B18.2.1: Square and Hex. Bolts and Screws. (Inch Series).

ASME B18.2.2: Square and Hex. Nuts. (Inch Series).

ASME B36.10: Welded and Seamless Wrought Steel Pipe.

ASME B36.19: Stainless Steel Pipe.

ASME B46.1: Surface Texture. (Surface Roughness, Waviness and Lay).

 

AMERICAN BOILER AND PRESSURE VESSEL CODE:

ASME Section VIII: Rules for Construction of Pressure Vessels.

ASME Section IX: Qualification Standard for Welding and Brazing Procedures, Welders, Brazers and Welding and Brazing Operators.

 

API (AMERICAN PETROLEUM INSTITUTE):

API 5L: Specification for Line Pipe.

API 598: Valve Inspection and Testing.

API 600: Steel Gate Valves-Flanged and Butt Welding Ends and Bolted Bonnets.

API 602: Steel Gate, Globe and Check Valves for Size NPS 4 (DN100) and Smaller for Petroleum and Natural Gas Industries.

API 608: Metal Ball Valves-Flanged, Threaded and Welding End.

 

MSS (MANUFACTURER STANDARDIZATION SOCIETY):

MSS-SP-25: Standard Marking System for Valves, Fittings, Flanges and Unions.

MSS-SP-44: Steel Pipeline Flanges.

MSS-SP-53: Quality Standard for Steel Castings and Forgings for Valves, Flanges, Fittings and other Piping Components – Magnetic Particle Examination Method. (MPI).

MSS-SP-54: Quality Standard for Steel Castings and Forgings for Valves, Flanges, Fittings and other Piping Components – Radiographic Examination Method. (RT).

MSS-SP-61: Pressure Testing of Valves.

MSS-SP-93: Quality Standard for Steel Castings and Forgings for Valves, Flanges, Fittings and other Piping Components – Liquid Penetrant Examination Method. (LPT).

MSS-SP-94: Quality Standard for Steel Castings and Forgings for Valves, Flanges, Fittings and other Piping Components – Ultrasonic Examination Method. (UT).

MSS-SP-99: Instrument Valves.

MSS-SP-137: Quality Standard for Positive Material Identification of Metal Valves, Flanges, Fittings and other Piping Components. (PMI).

 

BS (BRITISH STANDARD):

BS 1873: Steel Globe and Globe Stop and Check Valves (Flanged and Butt Welding Ends) for Petroleum, Petrochemical and Allied Industries.

BS EN ISO 17292: Metal Ball Valves for Petroleum, Petrochemical and Allied Industries.

BS EN ISO 12266-1: Industrial Valves – Testing of Valves.

BS EN ISO 12266-2: Industrial Valves – Testing of Valves.

BS 3799: Specification for Steel Pipe Fittings, Screwed and Socket Welding for Petroleum Industry.

BS 4368: Metallic Tube Connectors for Fluid Power and General Use. Specification for Type Test Requirements.

 

OTHER:

ASTM: American Society for Testing and Materials.

NACE: National Association of Corrosion Engineers.

ISO: International Organization for Standardization.

 

Note:

We follow many more standards and specifications depending upon the client’s project requirement. We believe in following strict standards and specifications so that our products may give our clients the maximum performance during peak times.