SECTION 211313 - WET-PIPE SPRINKLER SYSTEMS

Weld piping from 2-1/2 inches (65 mm) in diameter and larger, including branch connections. Mechanical grooved joints may be used instead of threaded or welded joints. Die-cut screw joints with full-cut, standard-taper pipe threads with red lead and linseed oil or other nontoxic joint compound applied to male threads only. ................
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