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ASME B16.39 2014 Edition, October 15, 2014
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Malleable Iron Threaded Pipe Unions Classes 150, 250, and 300
Page Count:28
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General

This Standard covers threaded malleable iron unions, Classes 150, 250, and 300. It also contains provisions for using steel for NPS 18 unions. This Standard includes

(a) design

(b) pressure–temperature ratings

(c) size

(d) marking

(e) materials

(f) joints and seats

(g) threads

(h) hydrostatic strength

(i) tensile strength

(j) air pressure test

(k) sampling

(l) coatings

(m) dimensions

Mandatory Appendix I provides tables in U.S. Customary units.