Aluminum vs galvanized steel duct
[DOCX File]Architecture Engineering and Construction
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Frames: Minimum of 1 inch by 1 inch by 1/8 inch galvanized steel angles for duct sizes through 24 inches, 1-1/2 inch by 1-1/2 inch by 3/16 inch for duct sizes between 25 inches to 48 inches, and 2 inches by 2 inches by 3/16 inch for ducts larger than …
[DOC File]Section 15010 - Mechanical General - Kinetics Noise
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The support hardware shall be cut-to-length galvanized steel channels supported and connected with stamped and punched galvanized steel duct support hangers. The support hangers shall allow the duct support elevation to be equal to or lower than the equipment rail elevation.
[DOCX File]SECTION 07 60 00, FLASHING AND SHEET METAL
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SPEC WRITER NOTE: If prefinished galvanized steel copings are used change par C title and specify as if aluminum with sealant in lieu of solder. //Stainless steel// //Copper// Copings: Join ends of sheets by a 19 mm (3/4 inch) locked and soldered seam, except at intervals of 9600 mm (32 feet), provide a 38 mm (1 1/2 inch) loose locked expansion ...
[DOCX File]SECTION 26 05 33 - DOA Home
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PVC Externally Coated Conduit: Rigid heavy wall, schedule 40, steel conduit with external 40 mil (0.1 mm) PVC coating. Conduit must be hot dipped galvanized inside and out including threads. The PVC coating bond to the galvanized steel conduit shall be stronger than the tensile strength of the coating itself.
[DOC File]Air Flow, Air Systems, Pressure, and Fan Performance
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Material k A b c Aluminum, Black Iron, Stainless Steel 0.00015 0.0425 0.0465 0.602 Galvanized 0.0005 0.0307 0.533 0.612 Flexible Duct 0.003 0.0311 0.604 0.639 k = Roughness factor for the material. 10. Appendix 2 – ASHRAE Fittings. Fitting 3-2. Fitting 3-6 Fitting 3-14 Fitting 4-6. Fitting 5-1 11. Appendix 3 – Bullhead Tee Curves. Au/Ad = 0 ...
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