Asme b16 20 standard pdf

This standard covers materials, dimensions, tolerances, and markings for metal ringjoint gaskets, spiralwound metal gaskets, and metal jacketed gaskets and filler material. This standard also provides dimensional requirements for flanged ends of valves conforming to mss sp80. Short radius elbows and returns, which were previously included in asme b16. Use the material reference in the table when determining pressuretemperature ratings of valves used in accordance with the asme standard. B16 standardization of valves, flanges, fittings, and gaskets. These flanges are highly durable, corrosion resistant and reliable.

Following approval by the b16 standards committee and the asme supervisory board, this standard was approved as an american national standard by ansi on june 15, 2009. Pressure class 900, nominal pipe sizes 24 and larger, pressure. Suggestions for improvement of this standard are welcome. Metallic gaskets for pipe flanges ringjoint, spiralwound. This marks a landmark introduction of an actual leakage performance criterion into asme b16. Thank you for visiting our website and your interest in our free products and services. They should be addressed to the secretary, b16 standards committee, the american society of mechanical engineers, three park avenue, new york, ny 10016. Guide specification for copper and copper alloy building. The next edition of this standard is scheduled for publication in 2022. Piping codes, valve standards and ball valve selection. The user is advised that a valve used under the jurisdiction of the asme boiler and pressure vessel code, asme code for pressure piping, or governmental regulations is subject to any. Asme, approval by ansi was given on january 22, 1993, with the designation asme b16.

American national standard for pipe threads ansi asme b1. Inward buckling of spiral wound gaskets has been identified as a potential problem. Its purpose is to assure installation interchangeability for. Following approval by b16 subcommittee g, the standards committee, and asme, ansi approved this american national standard. Table of dimensions and tolerances of spiral wound gaskets. Asme b16 10 face to face dimensions upon request from industry and government, asme has been defining piping safety since 1922. F bushing g plug h 6 18 10 6 7 10 35 6 8 14 11 6 10 14 41 16 3 6. The standard applies to valves operated in a temperature environment between 20f and.

Thisrevision wasapprovedby theamerican nationalstandardsinstitute ondecember2, 2011. Asmeb16202017metallic gaskets for pipe flangesthis standard covers materials, dimensions. The asme b16 standardization of valves flanges, fittings and gaskets committee, which operates under asme s board on pressure technology codes and standards is responsible for standards covering valves, flanges, pipe fittings, gaskets and valve actuators for use in pressure services. These gaskets are dimensionally suitable for use with flanges described in reference flange standards asme b16. Pressure class 900, nominal pipe sizes 24 and larger, pressure class 1500 from nominal pipe sizes 12 and larger, pressure class 2500 from nominal pipe sizes 4 and larger and all ptfe filled gaskets. Our company offers a wide range of flanges like pl, sw, bl, wn,so,lj, asme ansi b16.

One of the significant changes is the introduction of maximum permissible leakage rate. Materials covered in this standard are as in ansi b16. These tables must be used in accordance with the asme standard. Pressuretemperature ratings are in accordance with ansi b16. Metallic and nonmetallic gaskets for pipe flanges asme. This standard covers materials, dimensions, tolerances, and markings for metal ringjoint gaskets, spiralwound metal gaskets, metaljacketed gaskets, and grooved metal gaskets with covering layers.