Scope.1 General, this Standard covers overall asme dimensions, tolerances, ratings, testing, and asme markings for factory-made wrought buttwelding fittings in sizes NPS 12 through NPS 48 (DN 15 asme through DN 1200).
1.5.2 Codes and asme Regulations.
Combining values from the two systems may result in nonconformance with this Standard.
8 12 318.104.22.168 Pressure Rating Designation, class, followed by a dimensionless number, is the designation for pressuretemperature ratings.Standards and specifications adopted by reference in this Standard are shown in Mandatory Appendix.Asme / ansi B16.9 Butt Weld Reducing Elbow.Asme / ansi B16.9 Butt Weld Fabricated Tee.Asme / ansi B16.9 Butt Weld Stub Ends.4.326.1/22.060.1/21.1/2.048.1/21.1/4.042.1/21.033.1/2.973.960.1/2.948.1/4.942.1/23 101.688.1/22.1/2 101.673.1/22 101.660.1/21.1/2 asme 101.648.1/21.1/4 101.642.1/2 114.3101.388.1/2 114.373.360.1/2 asme 114.348.3114.1/2 141.3101.388.1/2 141.373.360.3141.3114.1/2 168.3101.388.1/2 168.373.1168.1141.1114.1/2 219.1101.0219.0168.0141.0114.9273.9219.9168.9141.6323.6273.6219.6168.4355.4323.4273.4219.1.3 Fabricated Fittings, fabricated laterals and other asme fittings employing circumferential or intersection welds are considered pipe fabrication and are not within the scope of this Standard.Asme B16.9 Standard covers overall dimensions, tolerances, ratings, testing, and markings for factory-made wrought buttwelding fittings in sizes NPS 12 through NPS 48 (DN 15 through DN 1200).4 5 141.3.563 7 asme 1/2 5 3 1/ /16 6 168.3. Fabricated lap joint stub ends are exempt from the above restrictions, magic provided they meet all the requirements of headway the applicable astm material specification listed in section.
For the purpose of determining conformance with this Standard, the convention for fixing significant digits where limits (maximum or minimum values) are specified shall be rounded off as defined in astm.Asme / ansi B16.9 Butt Weld End Cap.Asme / ansi B16.9 Butt Weld 3D Elbow.8 4 6 4 3/16 2 1/2.0.875 3 3/4 2 1/2 1 3/4 5 7 headway 1/2 5 3/16.9.500 4 1/ /4 testspdf 3 1/2 101.6.000 5 1/4 asme 3 1/2 2 1/4 7 10 1/2 7 1/4 4 114.3.Standardized designations for flanges per asme magic B16.5 referenced in this Standard are Classes 150, 300, 600, 900, 1500,and 2500.8 Tolerances of Welded Fittings Fitting specification, Standard and headway identification There are different varieties of pipe fittings made of various materials and available in various shapes and sizes.1.5 References.5.1 Referenced Standards.A fitting used under the jurisdiction of the asme Boiler and Pressure Vessel asme Code, the asme Code for Pressure Piping, or a governmental regulation is subject to any limitation of that code or regulation.Customary units are shown in e values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.