SECTION 232113- HVAC PIPING SYSTEMS AND SPECIALTIES

Loop Piping Steel Pipe 2-1/2 inch to 12 inch: ASTM A53, Grade B, Schedule 40, black steel pipe covered with filament wound, polyester reinforcement composite directly applied to the pipe 2-1/2 inch to 12 inch; ASTM A234, butt welded, long radius ells, and weld o lets. Flanges: ANSI B 16.5, weld neck, raised faced with gaskets. ................
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