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Industry Standard

Industry Standard

API Standards - American Petroleum Institute

  • API 598  

    Valve Inspection and Testing


  • API 600

    Steel Gate Valves-Flanged and Butt-Welding Ends, Bolted and Pressure Seal Bonnets.


  • API 6D

    Pipeline Valves (Gate, Plug, Ball and Check Valves.)


Asme Standards - asme International (American Society Of Mechanical Engineers)  

  • ANSI B16.1  

    Cast lron Pipe Flanges and Flanged Fittings


  • ANSI B16.5  

    Pipeline Flanges and Fanged Fittings.


  • ANSI B16.10  

    Valve Dimensions, Face to Face and End to End.


  • ANSI B16.25  

    Buttwelding Ends.


  • ANSI B16.34  

    Valves-Flanged, Threaded and Welding Fnd.


MSS Standards - Manufacturers Standardization  

  • MSS SP-6  

    Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings.                          


  • MSS SP-9  

    Spot Facing for Bronze, lron and Steel Flanges                          


  • MSS SP-25  

    Standard Marking System for Valves, Fittings, Flanges and Unions                          


  • MSS SP-44  

    Steel Pipe Line Flanges                          


  • MSS SP-45  

    Bypass and Drain Connections                          


  • MSS SP-53  

    Quality Standard for Steel Castings and Forgings for Valves, Flanges and Fittings and Other Piping Components-Magnetic Particle Examination Method.                          


  • MSS SP-54  

    Quality Standard for Steel Castings for Valves, Flanges, and Fittings and Other Piping Components-Radiographic Examination Method.                          


  • MSS SP-55  

    Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping Components-Visual Method for Eval of Surface lrregularities.                          


  • MSS SP-93  

    (R 92)Quality Standards for Steel Castings and Forgings for Valves, Flanges and Fittings and Other Piping Components-Liquid Penetrant Examinations Method.                          


  • MSS SP-61  

    Pressure Testing of Steel Valves                          


  • MSS SP-91  

    (R 96)Guidelines for Manual Operation of Valves                          


  • MSS SP-92  

    (R 92)MSS Valves User Guide                          


Astm Standards - American Society For Testing And Materials  

  • ASTM A 193    

    Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High Temperature Service.                          


  • ASTM A 194  

    Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High-Pressure and High-Temperature Service.                          


  • ASTM A 216    

    Standard Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service.                          


  • ASTM A 217    

    Standard Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for   High-Temperature Service.                          


  • ASTM A 276  

    Standard Specification for Stainless and Heat-Resisting Steel Bars and Shapes.                          


  • ASTM A 351  

    Standard Specification for Castings, Austenitic, Austenitic-Ferritic(Duples), for Pressure-Containing Parts.                          


  • ASTM A 352  

    Standard Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts, Suitable for Low Temperature Service.                          


  • ASTM A 515  

    Standard Specification for Pressure Vessel Plates, Carbon Steel, for Intermediate-and Higher-lemperature Service.                          


  • ASTM A 516  

    Standard Specification for Pressure Vessel Plates, Carbon Steel for Moderate-and Lower-Temperature Service.                          


Nace Standards - Nace (National Association Of Corrosion Engineers)  

  • NACE MR0175  

    Standard Material Requirements Sulfide Stress Cracking Resistant Metallic Materials for Oilfield Equipment.                          


  • ANSI/ASME B31.1  

    Power Piping.                          


  • ANSI/ASME B31.2  

    Fuel Gas Piping.                          


  • ANSI/ASME B31.3  

    Process Piping.                          


Boiler And Pressure Vessel Code:

  • SECTION II  

    Parte A - Ferrous Material Specifications.                          


  • SECTION II  

    Parte B - Non Ferrous Material Specifications                          


  • SECTION II  

    Parte C - Specifications for Welding Rods, Electrodes and Filler Metals Specifications                          


  • SECTION V  

    Nondestructive Examination.                          


  • SECTION VIII  

    Rules for Construction of Pressure Vessels, Divisions 1 and 2.                          


  • SECTION IX  

    Welding and Brazing Qualifications.                          


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  • Unit 301, Block 3, No.1 Kangshi Road, Pudong, Shanghai, China
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  • Email: info@unimechflow.com

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