Monday, April 1, 2019

Factory-Made Wrought Buttwelding Fittings

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In 1921, the American Engineering Standards Committee, later American Standards Association (ASA), organized Sectional Committee B16 to unify and further develop national standards for pipe flanges and fittings (and, later, for valves, gaskets, and valve actuators). Cosponsors of the B16 Committee were the American Society of Mechanical Engineers (ASME), the Heating and Piping Contractors National Association [now the Mechanical Contractors Association of America (MCAA)], and the Manufacturers Standardization Society of the Valve and Fittings Industry (MSS). Cosponsors were later designated as cosecretariat organizations.
This Standard covers overall dimensions, tolerances, ratings, testing, and markings for wrought factory-made buttwelding fittings in sizes NPS 1⁄2 through 48 (DN 15 through 1200).

Committee Roster
1. Scope
2. Pressure Ratings
3. Size
4. Marking
5. Material
6. Fitting Dimensions
7. Surface Contours
8. End Preparation
9. Design Proof Test
10. Production Tests
11. Tolerances
Mandatory Appendices
Nonmandatory Appendices

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