Normativa Aplicable a Tuberías

Normativas de referencia para diseño de tuberías

Publicamos un pequeño resumen de toda la Normativa aplicable al diseño de tuberías,

Las Normas del American National Standards Institute (ANSI) utilizadas en el Diseño de los sistemas de tubería, están recogidas en el Código para la tubería bajo presión, ASME B31.

El citado Código está formado por estas secciones:

  • B31.1: Power Piping.
  • B31.2: Fuel Gas Piping.
  • B31.3: Process Piping.
  • B31.4: Pipeline transportation systems for liquid hydrocarbons and otherliquids.
  • B31.5: Refrigeration Piping and heat transfer components.
  • B31.8: Gas Transmission & Distribution Piping systems.
  • B31.9: Building services piping.
  • B31.11: Slurry transportation piping systems
  • B31.G Manual for determining the remaining strength of corroded piping.

Las Normas API, que suelen ser utilizadas en los diseños de tuberías, son:

  • API 5L: Specification for Line Pipe.
  • API 6D: Pipe line Valves, End closures, Connectors and Swivels.
  • API 6F: Recommended Practice for Fire Test for valves.
  • API-327: Aboveground Storage Tanks Standard.
  • API-570: Piping Inspection Code.
  • API-593: Ductile Iron Plug Valves – flanged ends.
  • API-598: Valve Inspection and Test.
  • API-600: Steel Gate Valves.
  • API-601: Metallic Gasket for Refinery piping.
  • API-602: Compact Design carbon steel Gate.
  • API-603: Corrosion Resistant Gate Valves.
  • API-604: Ductile Iron Gate Valves – flanged ends.
  • API-605: Large Diameter Carbon Steel Flanges.
  • API-607: Fire test for soft-seated ball valves.
  • API-609: Butterfly valves.
  • API-610: Centrifugal Pumps for Petroleum.
  • API-617: Axial and Centrifugal Compressors, and Expander-Compressors.
  • API-661: Air-Cooled Heat Exchangers for General Refinery Service.
  • API-682: Pumps-Shaft Sealing for Centrifugal & Rotary Pumps.
  • API 1104: Standard for welding pipeline and facilities.
  • API-2000 Venting Atmosphere and Low pressure storage Tank.

La mayoría de las Normas ASME(organismo que absorbió al ANSI), con las que se debe trabajar en trazados de tuberías, son:

  • ANSI B 1.1: Unified Inch Screw Threads.
  • ASME B 1.20.1: Pipe Threads general purpose.
  • ASME B 16.1: Cast Iron Pipe Flanges and Flanged Fittings.
  • ASME B 16.3: Malleable Iron Threaded Fittings.
  • ASME B 16.4: Cast Iron Threaded Fittings.
  • ASME B 16.5: Steel Pipe flanges and Flanged Fittings.
  • ASME B 16.9: Steel Butt welding Fittings.
  • ASME B 16.10: Face to face and end to end dimensions of Valves.
  • ASME B 16.11: Forged steel Socket welding and threaded fittings.
  • ANSI B 16.20: Metallic Gaskets for pipe flanges, ring joint, spiral wound andjacketed flanges
  • ASME B 16.21: Non Metallic Gasket for pipe flanges.
  • ASME B 16.25: Butt Welding Ends.
  • ASME B 16.28: Short Radius Elbows and Returns.
  • ASME B 16.34: Steel Valves, flanged and butt welding ends.
  • ASME B 16.42: Ductile Iron Pipe Flanges & Flanged Fittings –Class 150 and300
  • ASME B 16.47: Large Diameter Steel Flanges – NPS 26-60.
  • ASME B 18.2, 1 & 2: Square and hexagonal head Bolts and Nuts (in & mm).
  • ASME B 36.10: Welded and seamless Wrought Steel Pipes.
  • ASME B 36.19: Welded and Seamless Austenitic Stainless Steel Pipes.

Las Normas ASTM abarcan un índice y 15 Secciones, que comprenden 71 volúmenes, y miles de Normas, su relación, es:

  • Section 1 Iron & Steel Products: 7 Volumes & 736 Standards.
  • Section 2 Non Ferrous Metal & Products: 5 Volumes & 678 Standards.
  • Section 3 Metal Test Methods & Analytical Procedures: 6Volumes & 651standards.
  • Section 4 Construction: 10 Volumes & 1601 standards.
  • Section 5 Petroleum Products, Lubricants, etc., 5 Volumes & 577 standards.
  • Section 6 Paints, Related Coatings & Aromatics: 4 Volumes & 795 Standards.
  • Section 7 Textiles: 2 Volumes & 325 Standards.
  • Section 8 Plastics: 4 Volumes & 556 Standards.
  • Section 9 Rubber: 2 Volumes & 287 Standards.
  • Section 10 Electric Insulation & Electronics: 5 Volumes & 487 Standards.
  • Section 11 Water & Environmental Technology: 2 Volumes & 763 Standards.
  • Section 12 Nuclear, Solar & Geothermal energy: 2 Volumes & 248 Standards.
  • Section 13 Medical Device & Services: 1Volume.
  • Section 14 General Methods & Instrumentation: 3 Volumes & 336 Standards.
  • Section 15 General Products, Chemical Specialties & end use products: 9 Volumes & 1498 Standards

Las Normas de la American Welding Society (AWS), proporcionan la información, de los fundamentos de la soldadura, para el diseño y la preparación de las uniones, la calificación de los soldadores y los programas de entrenamiento prueba e inspección.

Además de las Normas y de los códigos ya descritos, los fabricantes publican estándares, los MSS-SP, muchos de ellos con reducida a aplicación o absorbidos por otros, los más habituales en el campo del piping, son:

  • MSS-SP-6: Standard Finishes for Contact Surface for Flanges.
  • MSS-SP-25: Standard Marking System for Valves, Fittings Flanges.
  • MSS-SP-42: Class 150 Corrosion Resistant Gate, Globe and Check Valves.
  • MSS-SP-43: Wrought Stainless Steel Buttweld Fittings.
  • MSS-SP-44 Steel Pipeline Flanges.
  • MSS-SP-56: Pipe Hanger Supports: Materials, Design and Manufacture.
  • MSS-SP-61: Pressure testing of Steel Valves.
  • MSS-SP-67: Butterfly Valves.
  • MSS-SP-68: High Pressure Offseat Design Butterfly Valves.
  • MSS-SP-70: Cast Iron Gate Valves.
  • MSS-SP-71: Cast Iron Check Valves.
  • MSS-SP-72: Ball Valves.
  • MSS-SP-78: Cast Iron Plug Valves.
  • MSS-SP-80: Bronze Gate, Globe and Check Valves.
  • MSS-SP-81: Stainless Steel Bonnet less Knife Gate Valves.
  • MSS-SP-83: Pipe Unions.
  • MSS-SP-85: Cast Iron Globe Valves.
  • MSS-SP-88: Diaphragm Type Valves.
  • MSS-SP-89: Pipe Hangers and Supports: Fabrication and installation practices.
  • MSS-SP-90: Pipe Hangers and Supports: Guidelines on terminology.
  • MSS-SP-92: MSS Valve user guide.
  • MSS-SP-108: Resilient Seated Eccentric CI Plug Valves.
  • MSS-SP-115: Excess Flow Valves for Natural Gas Service.
  • MSS-SP-122: Plastic Industrial ball valves.
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