12 inch round hvac pipe
SECTION 230529 - HANGERS AND SUPPORTS FOR HVAC …
Hangers for Pipe Sizes ½ (12.7 mm) to 1-1/2 Inch (38 mm): Carbon steel, adjustable swivel ring, UL listed, Grinnell Fig. 69 or equal. Use plastic coated hangers at all uninsulated copper piping. Hangers for Pipe Sizes 2 Inches (50.8 mm) and Cold Pipe Sizes 6 Inches (152.4 mm) and Over: Carbon steel, black or galvanized, adjustable, clevis, UL ...
[DOCX File]23 31 00 - DOA Home
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Stainless steel air-craft cable hanging systems are allowed on round ductwork under 12 inches diameter if installed utilizing two fasteners with two cable loops. Support with 3/32 inch, 7 x 7, stainless steel air-craft cable, with matching serrated spring loaded wedge mechanism fasteners rated for actual load.
[DOCX File]Section 23 31 00 - HVAC DUCTS AND CASINGS
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2.For round and flat oval duct: Refer to SMACNA HVAC duct Construction Standards (Figure 2-11). 2.5 FIRE DAMPERS A.Galvanized steel, interlocking blade type, UL listing and label, 11/2-hour rating, 70 degrees C (160 degrees F) fusible line, 100 percent free opening with no part …
SECTION 233113 - METAL DUCTS
Support round steel ductwork from construction by 1 inch by 18 gauge (25 mm by 1.3 mm) galvanized strap hangers with inside radius of loop hanger equal to outside radius of duct. For ducts under 12" diameter, provide supports 10 feet (3 m) o.c.; 12 feet (3.6 m) and over, 6 feet (1.8 …
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