PIPING CODES & STANDARDS

The following codes and standards shall be used together with this standard specification for
materials, design and dimensional requirements.

American National Standard Institute (ANSI)
American Society of Mechanical Engineers (ASME)

ASME B 31.1 - Power piping

ASME B 31.3 - Process Piping for Petroleum refineries, Chemical,
Pharmaceutical, Textile, Paper, Semiconductor & Cryogenic plant

ASME B 31.4 - Piping generally used for transporting & distributing liquid Hydrocarbons & other liquids

ASME B 31.5 - Refrigeration piping

ASME B 31.8 - Piping generally used for transporting & distributing Gases.

ASME B 31.9 - Building services

ASME B 31.11 - Slurry transportation piping system

ASME B 16.5 - Pipe Flanges and Flanged Fittings NPS ½ Trough NPS 24

ASME B 16.9 - Factory-Made Wrought Steel Buttwelding Fittings

ASME B 16.10 - Face-to-Face and End-to-End Dimensions of Valves

ASME B 16.11 - Forged Fittings, Socket- Welding and Threaded

ANSI B 16.14 - Ferrous Pipe Plugs, Bushing and Locknuts with Pipe Threads

ASME B 16.20 - Metallic Gaskets for Pipe Flanges- Ring-Joint, Spiral- Wound, and Jacketed
ASME B 16.21 - Nonmetallic Flat Gaskets for Pipe Flanges

ASME B 16.25 - Buttwelding Ends

ASME B 16.28 - Wrought Steel Buttwelding Short Radius Elbows

ASME B 16.34 - Valves - Flanged, Threaded, and Welding End

ASME B 16.36 - Orifice Flanges

ASME B 16.47 - Large Diameter Steel Flanges NPS 26 Through NPS 60

ANSI B 18.2.1 - Square and Hex Bolts and Screws (Inch Series)

ANSI B 18.2.2 - Square and Hex nuts (Inch Series)

ASME B 36.10M - Welded and Seamless Wrought Steel Pipe

ASME B 36.19M - Stainless Steel Pipe

American Petroleum Institute (API)

API SPEC 5L - Specification for Line Pipe

API STD 594 - Check Valves: Wafer, Wafer-Lug, and Double Flanged Type

API STD 598 - Valve Inspection and Testing

API STD 600 - Steel Gate Valves- Flanged and Butt-welding Ends,
Bolted and Pressure Seal Bonnets

API STD 602 - Compact Steel Gate Valves- Flanged, Threaded, Welding, and Extended Body Ends

API STD 609 - Butterfly Valves: Double Flanged, Lug-and wafer Type


Manufacturers standardizations society-standard practice

MSS SP-6 : Standard Finishes for Contact Faces of Pipe Flanges and
Connecting-End Flanges of Valves and Fittings

MSS SP-25 : Standard Marking Systems for Valves, Fittings, Flanges & Union

MSS SP-45 : Bypass and Drain Connections

MSS SP-61 : Pressure Testing of Steel Valves

MSS SP-67 : Butterfly Valves

MSS SP-75 : Specification for High Test Wrought Butt Welding Fittings

MSS SP-82 : Valve Pressure Testing Methods

MSS SP-95 : Swadged Nipples and Bull Plugs

MSS SP-97 : Integrally Reinforced Forged Branch Outlet Fittings-
Socket welding, Threaded and Buttwelding Ends

American Society for Testing and Materials (ASTM)

ASTM Section II A Volume 1 & 2

ASTM Section V

ASTM Section VIII Division 1 & 2

British Standards (BS)

BS 5351 - Steel ball valves for petroleum, petrochemical & allied industries

BS 5352 - Specifications for steel wedge gate, globe & check valves 50 mm & smaller for petroleum, petrochemical & allied industries

BS 5353 - Steel plug valves

BS 1873 - Steel globe & globe stop & check valves (Flanged & butt-welded ends) for petroleum, petrochemical & allied industries

BS 6755 (Part 1&2) - Testing of Valves