Single Wall Oval - Air Distribution
Single Wall Oval Oval Duct and Fittings Construction Standards Air Distribution Corporation Air Distribution Corporation Oval Duct and Fittings are manufactured in accordance with applicable SMACNA, ASHRAE and SPIDA standards. FLAT OVAL CONSTRUCTION Major Dimension Duct Width Spiral Seam Duct Gauge Fitting Gauge to 24” 24 20 25 to 36” 22 20 37 to 48” 22 18 49 to 60” 20 18 61 to 70” 20 16 71” and up 18 16 Thickness/Weight Relationships of Standard Materials Galvanized Steel Gauge Stainless Steel (304 or 316) Aluminum 3003-H14 Nominal Thickness (inches) Nominal Weight (lb/sq ft) Nominal Thickness (inches) Nominal Weight (lb/sq ft) Nominal Thickness (inches) Nominal Weight (lb/sq ft) 26 0.0217 0.906 0.0188 0.788 0.025 0.356 24 0.0276 1.156 0.0250 1.050 0.032 0.456 22 0.0336 1.406 0.0313 1.313 0.040 0.570 20 0.0396 1.656 0.0375 1.575 0.050 0.713 18 0.0516 2.156 0.0500 2.100 0.063 0.898 16 0.0635 2.656 0.0625 2.625 0.080 1.140 ASTM Material Specifications Standard Material ASTM Number Galvanized Steel A653, A924 Stainless Steel A240 Aluminum B209 1
Single Wall Oval Air Distribution Corporation Dimensional Code & Ordering Information DIMENSIONING CODE All dimensions are in inches, all angles are in degrees A - Oval major B - Oval minor C - Branch oval major D - Branch oval minor R - Center Line Radius V - Body length of fitting H - See Loloss Tee ORDERING Specify type of fittings and list the following dimensions: ELBOWS - A, B, R TEES - A, B, E, F, L, (C, D, G, H, L2) LATERALS - A, B, E, F, L, (C, D, G, H, L2) CROSSES - A, B, E, F, L, G, H, (C, D, L2, L3 ) ACCESSORIES - As Noted All fittings, unless noted, are sized as a male part on each end for a slip joint assembly with spiral pipe. For flanged fittings see connectors detail for all dimensioning. 2
Single Wall Oval ELBOWS Air Distribution Corporation 90 5-PC ELBOW 45 3-PC ELBOW 2” EB453 EH453 2” EB905 EH905 AxB AxB 90 45 R 1.5 x A R 1.5 x A EMB90 EMH90 CUSTOM ELBOW A No. of vanes 3-9 10-14 15-19 20-60 2 3 4 5 EXB XEH 2” 90 2-PC MITRED ELBOW AxB * 2” 2” 2” R 1.5 x A AxB *SPECIFY (Elbow Angle & Radius of Centerline *Oval Duct Elbows are available in “Hard Bend” and “Easy Bend” as defined by the following diagrams and abbreviations. Hard Bend (HB) Easy Bend (EB) 3
Single Wall Oval STRAIGHT TEES Air Distribution Corporation REDUCING TEE STRAIGHT TEE TR T ExF ExF 2” 2” 4” 4” 2” AxB CxD AxB 2” L 2” 2” TEE CROSS L L2 REDUCING TEE CROSS TX TXR ExF ExF 2” 2” 4” 4” 2” AxB AxB L 2” 2” GxH CxD L 2” L2 GxH 4
Single Wall Oval CONICAL TEES Air Distribution Corporation REDUCING CONICAL TEE CONICAL TEE TCR TC ExF ExF 2” 4” 2” 4” 1” 1” 1” 1” 2” CxD AxB AxB 2” 2” 2” L CONICAL TEE CROSS REDUCING CONICAL TEE CROSS TXC TXCR ExF ExF 2” 2” 4” L2 L 4” 1” 1” 1” 1” 2” AxB 2” 1” 1” GxH L AxB L 2” 2” 1” CxD 1” L2 GxH 5
Single Wall Oval STRAIGHT LATERAL Air Distribution Corporation 45 REDUCING LATERAL 45 LATERAL L A-C 4” MINIMUM LR L 2” 2” ExF ExF 4” 4” 2” AxB CxD AxB 2” 2” L 2” L2 L 45 REDUCING LATERAL CROSS 45 LATERAL CROSS LXR LX 2” 2” ExF L A-C 4” MINIMUM ExF 4” 4” 2” L AxB L AxB 2” 4” 2” 2” GxH CxD 2” 4” 2” L2 GxH 6
Single Wall Oval LOLOSS TEES Air Distribution Corporation LOLOSS TEE REDUCING LOLOSS TEE TL TLR L A-C 4” MINIMUM ExF H ExF H 2” H 2” 2” 2” L2 H 2” 2” AxB AxB CxD L L E H E H 3 thru 8 4” 3 thru 8 4” 9 thru 16 6” 9 thru 16 6” 17 thru 26 10” 17 thru 26 10” 27 and up 12” 27 and up 12” LOLOSS TEE CROSS REDUCING LOLOSS TEE CROSS TLX TLXR H ExF H L A-C 4” MINIMUM ExF 2” H 2” 2” L2 H 2” 2” 2” L AxB AxB L H H 2” E,G H 3 thru 8 4” 9 thru 16 6” GxH CxD 2” GxH E,G H 3 thru 8 4” 9 thru 16 6” 17 thru 26 10” 17 thru 26 10” 27 and up 12” 27 and up 12” 7
Single Wall Oval MISCELLANEOUS Air Distribution Corporation CONCENTRIC REDUCER ECCENTRIC REDUCER RC L A-C 4” MINIMUM L 2” RE L A-C 4” MINIMUM 2” AxB L 2” CxD 2” AxB PIPE COUPLING MALE CxD FITTING COUPLING NP FCL 2” 2” 2” AxB 2” AxB ROUND BALANCING DAMPER END CAP RBD ES 2” 8” A AxB 2” 2” 8
Single Wall Oval MISCELLANEOUS Air Distribution Corporation OFFSET OVAL TO OVAL Z ZR CxD L 2" O 2" 2" AxB L Z Z 2" Z AxB TAPERED Y BRANCH BULLHEAD VEE BV Y 2” 2” CxD 2" CxD 45 2" ExF AxB RL RR 2" 45 2” ExF AxB BULLHEAD TEE BT L 2" AxB 2" No. of vanes 3-7 8-10 10-60 1 3 5 REDUCING BULLHEAD TEE TBVR A No. of vanes 3-7 8-10 10-60 1 3 5 L3 CxD ExF 2" 2" L L2 AxB 2" A 2" 2" 4” 2" AxB 2" AxB 9
Single Wall Oval TRANSITIONS Air Distribution Corporation CONCENTRIC RECTANGULAR TO OVAL RTR-C AxB 2” D L 2” C CxD NON-CONCENTRIC RECTANGULAR TO OVAL RTR-NC AxB 2” O2 L D O1 2” CxD C 10
Single Wall Oval ROUND TAPS Air Distribution Corporation STRAIGHT TAP DST 2” CONICAL TAP CST 1” 4” 4” C C 2” ½” ½” A PIPE DIAMETER A PIPE DIAMETER LATERAL TAP 45 LST LOLOSS TAP HEST 2” C C C 2” ½” ½” A A PIPE DIAMETER A PIPE DIAMETER BELLMOUTH START TAP BL 18” Dia, C 6” START TAPS CONICAL START TAP CT A 18” Dia, C 3” A 2” C R B B A 4 17 thru 26 10” 27 and up 12” H 4” A H 3 thru 8 4” 9 thru 16 6” 3” 1/2 B A 2 B 11
Single Wall Oval RECTANGULAR TAPS Air Distribution Corporation RST-R C RST-TI C B RST-TO C B 4” 4” 4” 1” 1” A Pipe Diameter 1” A Pipe Diameter B & C Are Inside Dimensions A Pipe Diameter 45RST-R C B 45RST-TI C B 2” 45RST-TO C B A Pipe Diameter Body Height 6” 2” 2” 6” 6” A Pipe Diameter Body Height 6” B 6” A Pipe Diameter B & C Are Inside Dimensions Body Height 6” 12
Single Wall Oval CONNECTORS Air Distribution Corporation Slip Fit Connection Accuflange Connection 3/8" #8 Tek Screw or larger Space 10” O.C. 1-3/8" 2" SIDE VIEW PIPE #10 Tek Screw Screws by Others Space 6” O.C. 5/16” thick by 3/4” wide closed cell neoprene gasket by others. Sealant Spiral Pipe - Customer specified duct length shall be flange face to flange face dimension. 13
Single Wall Oval ALL FITTINGS CHART Air Distribution Corporation E90 E45 T TR TC TCR TL TCR L LR CST DST RST-R E290/E290V EM90 TX TXR TBVR TXC TXCR BV TLX TLXR LX LST RTS-TI RC HEST RST-TO RE BT Y RTR-C Z LXR BL CT 45RST-R RTR-NC RBD NP 45RTS-TI FCL ES 45RST-TO 14
Single Wall Oval Construction Chart Air Distribution Corporation ACTUAL SPIRAL PIPE OVAL SIZES & CONSTRUCTION CHART Galv Spiral Duct Ga. Galv. Fitting Ga. Weight lb/ft Actual Size Nominal Oval Size 6 x 16 24 20 4.20 15.50 17 24 20 4.5 19 24 20 4.57 Nominal Oval Size Galv Spiral Duct Ga. Galv. Fitting Ga. Weight lb/ft Actual Size 8 x 71 18 16 29.09 71.22 17.11 74 18 16 30.46 74.36 18.76 77 18 16 31.53 77.51 24 20 4.57 16.43 20 24 20 4.80 20.33 10 x 16 22 24 20 5.26 21.90 18 24 20 4.80 18.05 24 20 5.26 19.62 23 24 20 5.45 23.47 20 25 22 20 7.16 25.05 21 24 20 5.45 21.19 26 22 20 7.58 26.50 23 24 20 5.87 22.76 24 20 6.60 24.29 28 22 20 8.00 28.30 24 31 22 20 8.85 31.45 26 22 20 8.00 26.02 34 22 20 9.62 34.39 29 22 20 8.85 29.17 22 20 9.62 32.30 37 22 18 10.81 37.73 32 41 22 18 11.3 40.67 35 22 20 10.41 35.45 22 18 11.30 38.59 44 22 18 12.00 44.09 38 47 22 18 12.81 47.23 41 22 18 12.00 41.81 50 20 18 16.15 50.37 45 22 18 12.81 44.95 22 18 13.58 48.09 53 20 18 17.10 53.52 48 56 20 18 18.05 56.66 51 20 18 17.10 51.23 59 20 18 18.92 59.60 54 20 18 18.05 54.37 20 18 18.92 57.52 63 20 16 19.95 62.94 58 66 20 16 20.90 66.08 60 20 18 19.95 60.66 20 16 20.90 63.80 69 20 16 21.85 69.22 63 72 18 16 29.09 72.36 67 20 16 21.85 66.94 75 18 16 30.46 75.51 70 20 16 22.79 70.08 18 16 30.46 73.22 8 x 16 24 20 4.5 15.96 73 17 24 20 4.57 17.62 76 18 16 31.53 76.36 19 24 20 4.80 19.19 79 18 16 32.77 79.51 24 20 4.8 16.91 21 24 20 5.26 20.76 12 x 17 22 24 20 5.45 22.33 18 24 20 5.26 18.48 24 20 5.45 20.05 24 24 20 5.87 23.90 20 26 22 20 7.58 25.35 22 24 20 5.87 21.62 27 22 20 8.00 27.16 23 24 20 6.60 23.15 8.85 30.13 25 22 20 8.00 24.88 30 22 20 33 22 20 9.62 33.25 28 22 20 8.85 28.02 36 22 20 10.41 36.59 31 22 20 9.62 31.16 22 20 10.41 34.30 39 22 18 11.3 39.53 34 43 22 18 12.00 42.95 37 22 18 11.30 37.45 22 18 12.00 40.67 46 22 18 12.81 46.09 40 49 20 18 16.15 49.23 43 22 18 12.81 43.81 52 20 18 17.10 52.37 47 22 18 13.58 46.95 20 18 17.10 50.09 55 20 18 18.05 55.52 50 58 20 18 18.92 58.66 53 20 18 18.05 53.23 61 20 16 19.95 61.80 56 20 18 18.92 56.37 20 18 19.95 59.52 20 16 20.90 62.66 65 20 16 20.90 64.94 59 68 20 16 21.85 68.08 62 15
Single Wall Oval Construction Chart Air Distribution Corporation ACTUAL SPIRAL PIPE OVAL SIZES & CONSTRUCTION CHART Nominal Oval Size Galv Spiral Duct Ga. Galv. Fitting Ga. Weight lb/ft Actual Size Nominal Oval Size Galv Spiral Duct Ga. Galv. Fitting Ga. Weight lb/ft Actual Size 12 x 66 20 16 21.85 65.80 16 x 76 18 16 32.77 76.08 69 20 16 22.79 68.94 79 18 16 34.00 79.22 72 18 16 30.46 72.08 18 x 24 24 20 8.85 24.60 75 18 16 31.53 75.22 28 22 20 9.62 27.74 78 18 16 32.77 78.36 31 22 20 10.41 30.88 14 x 19 24 20 5.45 18.91 34 22 20 11.30 34.02 20 24 20 5.87 20.48 37 22 18 12.00 37.24 22 24 20 6.60 22.00 40 22 18 12.81 40.38 23 24 20 8.00 23.74 43 22 18 13.58 43.52 27 22 20 8.85 26.88 46 22 18 14.20 46.67 30 22 20 9.62 30.02 49 20 18 18.05 49.81 33 22 20 10.41 33.16 53 20 18 18.92 52.95 36 22 20 11.30 36.30 56 20 18 19.95 56.09 39 22 18 12.00 39.52 59 20 18 20.90 59.23 42 22 18 12.81 42.67 62 20 16 21.85 62.37 45 22 18 13.58 45.81 65 20 16 22.79 65.52 49 20 18 17.10 48.95 68 20 16 23.80 68.66 52 20 18 18.05 52.09 72 18 16 31.53 71.80 55 20 18 18.92 55.23 75 18 16 32.77 74.94 58 20 18 9.90 58.37 78 18 16 34.00 78.08 61 20 16 20.90 61.52 20 x 26 22 20 9.23 24.60 64 20 16 21.85 64.66 30 22 20 10.41 29.74 67 20 16 22.79 67.80 33 22 20 11.30 32.88 71 18 16 30.46 70.94 36 22 20 12.00 36.10 74 18 16 31.53 74.08 39 22 18 12.81 39.24 77 18 16 32.77 77.22 42 22 18 13.58 42.38 80 18 16 34.00 80.36 45 22 18 14.20 45.52 16 x 21 24 20 6.60 20.865 48 22 18 15.18 48.67 22 24 20 8.00 22.60 51 20 18 18.92 51.81 25 22 20 8.85 25.74 55 20 18 19.95 54.95 29 22 20 9.62 28.88 58 20 18 20.90 58.09 32 22 20 10.41 32.02 61 20 16 21.85 61.23 35 22 20 11.30 35.16 64 20 16 22.79 64.37 38 22 18 12.00 38.38 67 20 16 23.80 67.52 41 22 18 12.81 41.52 70 18 16 31.53 70.66 44 22 18 13.58 44.67 73 18 16 32.77 73.80 47 22 18 14.20 47.81 77 18 16 34.00 76.94 51 20 18 18.05 50.95 80 18 16 35.12 80.08 54 20 18 18.92 54.09 57 20 18 19.95 57.23 60 20 18 20.90 60.37 63 20 16 21.85 63.52 66 20 16 22.79 66.66 69 20 16 23.80 69.80 73 18 16 31.53 72.94 16
Single Wall Oval Reinforcement Chart Air Distribution Corporation OVAL REINFORCEMENT CHART Spiral Duct Nominal Oval Size Galv Ga. Spiral Duct Static Pressure (in w.g.) 0.5 1 2 4 6 10 Nominal Oval Size Galv Ga. Static Pressure (in w.g.) 0.5 1 2 4 6 10 6 x 16 24 nr nr 8a 5a 4a 3a 8 x 52 20 10a 6a 5b 3b 2.5b 2b 17 24 nr nr 8a 5a 4a 3a 55 20 10a 6a 5b 3b 2.5b 2b 19 24 nr nr 8a 5a 4a 3a 58 20 8a 6a 4b 3b 2.5b 2b 20 24 nr nr 8a 5a 4a 3a 61 20 8a 6a 4b 3b 2.5b 2b 22 24 nr 10a 8a 5a 4a 3a 65 20 8a 6a 3b 3b 2.5b 2b 23 24 nr 10a 8a 5a 4a 3a 68 20 8a 6a 3b 3b 2.5b 2b 25 22 nr 10a 8a 6a 5a 3a 71 18 8b 6b 4b 3b 2.5b 2c 26 22 nr 10a 8a 6a 5a 3a 74 18 8b 6b 4b 3b 2.5b 2c 28 22 nr 10a 8a 5a 5a 3a 77 18 8b 6b 4b 3b 2.5b 2c 31 22 10a 10a 8a 5a 4a 3a 10 x 16 24 nr nr nr nr nr 5a 34 22 10a 10a 6a 5a 4a 3b 18 24 nr nr nr nr nr 5a 37 22 10a 8a 5a 4a 3b 2.5b 20 24 nr nr nr 6a 5a 4a 41 22 10a 8a 5a a 3b 2.5b 21 24 nr nr nr 6a 5a 4a 44 22 8a 6a 4a 3a 2.5b 2b 23 24 nr nr 8a 5a 4a 3a 47 22 8a 6a 4a 3a 2.5b 2b 24 24 nr nr 8a 5a 4a 3a 50 20 10a 6a 5b 3b 2.5b 2b 26 22 nr nr 10a 6a 5a 4a 53 20 10a 6a 5b 3b 2.5b 2b 29 22 nr 10a 8a 6a 5a 3a 56 20 8a 6a 4b 3b 2.5b 2b 32 22 nr 10a 8a 5a 5a 3a 59 20 8a 6a 4b 3b 2.5b 2b 35 22 10a 10a 8a 5a 4a 3a 63 20 8a 6a 3b 3b 2.5b 2b 38 22 10a 10a 6a 5a 4a 3b 66 20 8a 6a 3b 3b 2.5b 2b 41 22 10a 8a 5a 4a 3b 2.5b 69 20 6a 4b 3b 2.5b 2b x 45 22 10a 8a 5a 4a 3b 2.5b 72 18 8b 6b 4b 3b 2.5b 2c 48 22 8a 6a 4a 3a 2.5b 2b 75 18 8b 6b 4b 3b 2.5b 2c 51 20 10a 8a 5a 4b 3b 2.5b 8 x 16 24 nr nr nr 6a 5a 4a 54 20 10a 6a 5b 3b 2.5b 2b 17 24 nr nr nr 6a 5a 4a 58 20 10a 6a 5b 3b 2.5b 2b 19 24 nr nr nr 6a 5a 4a 60 20 8a 6a 4b 3b 2.5b 2b 21 24 nr nr 8a 5a 4a 3a 63 20 8a 6a 4b 3b 2.5b 2b 22 24 nr nr 8a 5a 4a 3a 67 20 8a 6a 3b 3b 2.5b 2b 24 24 nr 10a 8a 5a 4a 3a 70 20 8a 6a 3b 3b 2.5b 2b 26 22 nr 10a 8a 6a 5a 3a 73 18 8b 6b 4b 3b 2.5b 2c 27 22 nr 10a 8a 6a 5a 3a 76 18 8b 6b 4b 3b 2.5b 2c 30 22 nr 10a 8a 5a 5a 3a 79 18 8b 6b 4b 3b 2.5b 2c 33 22 10a 10a 8a 5a 4a 3a 12 x 17 24 nr nr nr nr nr 5a 36 22 10a 10a 6a 5a 4a 3b 18 24 nr nr nr nr nr 5a 39 22 10a 8a 5a 4a 3b 2.5b 20 24 nr nr nr 6a 5a 4a 43 22 10a 8a 5a 4a 3b 2.5b 22 22 nr nr nr 8a 5a 4a 46 22 8a 6a 4a 3a 2.5b 2b 23 22 nr nr nr 8a 5a 4a 49 20 10a 8a 5a 4b 3b 2.5b 25 22 nr nr nr 8a 5a 4a Example: 8a 8 distance in feet between angle a letter indicates size of angle a 1 1/2” x 1 1/2 “ x 1/8” b 2” x 2” x 3/16” c 2 1/2” x 2 1/2” x 1/4” nr no reinforcement required 17
Single Wall Oval Reinforcement Chart Air Distribution Corporation OVAL REINFORCEMENT CHART Spiral Duct Spiral Duct Nominal Oval Size Galv Ga. 12 x 28 22 31 22 Static Pressure (in w.g.) Nominal Oval Size Galv Ga. Static Pressure (in w.g.) 0.5 1 2 4 6 10 5a 0.5 1 2 4 6 10 nr nr 10a 6a 5a 4a 16 x 21 24 nr nr nr nr nr 3a 22 24 nr nr nr nr nr 5a 22 nr nr nr nr 6a 5a nr 10a 8a 6a 5a 34 22 nr 10a 8a 5a 5a 3a 25 37 22 10a 10a 8a 5a 4a 3a 29 22 nr nr nr 8a 5a 4a 22 nr nr 10a 6a 5a 4a 40 22 10a 10a 6a 5a 4a 3b 32 43 22 10a 8a 5a 4a 3b 2.5b 35 22 nr 10a 8a 6a 5a 3a 2.5b 38 22 nr 10a 8a 5a 5a 3a 22 10a 10a 8a 5a 4a 3a 47 22 10a 8a 5a 4a 3b 50 20 10a 8a 5a 4b 3b 2.5b 41 53 20 10a 8a 5a 4b 3b 2.5b 44 22 10a 10a 6a 5a 4a 3b 22 10a 8a 5a 4a 3b 2.5b 56 20 10a 6a 5a 3b 2.5b 2b 47 59 20 10a 6a 5b 3b 2.5b 2b 51 20 10a 10a 6a 5b 4b 3b 62 20 8a 6a 4b 3b 2.5b 2b 54 20 10a 8a 5a 4b 3b 2.5b 20 10a 8a 5a 4b 3b 2.5b 66 20 8a 6a 4b 3b 2.5b 2b 57 69 20 8a 6a 3b 3b 2.5b 2b 60 20 10a 6a 5b 3b 2.5b 2b 2b 63 20 10a 6a 5b 3b 2.5b 2b 20 8a 6a 4b 3b 2.5b 2b 72 18 10a 8b 5b 3b 3b 75 18 8b 6b 4b 3b 2.5b 2c 66 78 18 8b 6b 4b 3b 2.5b 2c 69 20 8a 6a 4b 3b 2.5b 2b 5a 73 18 10a 8b 5b 3b 3b 2b 76 18 10a 6b 5b 3b 3b 2b 14 x 19 24 nr nr nr nr nr 20 24 nr nr nr nr nr 5a 22 24 nr nr nr 6a 5a 4a 79 18 8b 6b 4b 3b 2.5b 2c 24 nr nr nr nr nr 5a 23 24 nr nr nr 6a 5a 4a 18 x 24 27 22 nr nr nr 8a 5a 4a 28 22 nr nr nr nr 6a 5a 4a 31 22 nr nr nr 8a 5a 4a 22 nr nr 10a 6a 5a 4a 30 22 nr nr 10a 6a 5a 33 22 nr 10a 8a 6a 5a 3a 34 36 22 nr 10a 8a 5a 5a 3a 37 22 nr 10a 8a 6a 5a 3a 3a 40 22 nr 10a 8a 5a 5a 3a 22 10a 10a 8a 5a 4a 3a 39 22 10a 10a 8a 5a 4a 42 22 10a 10a 6a 5a 4a 3b 43 45 22 10a 8a 5a 4a 3b 2.5b 46 22 10a 10a 6a 5a 4a 3b 20 10a 10a 6a 5b 4b 3b 49 20 10a 10a 6a 5b 4b 3b 49 52 20 10a 8a 5a 4b 3b 2.5b 53 20 10a 10a 6a 5b 4b 3b 20 10a 8a 5a 4b 3b 2.5b 55 20 10a 8a 5a 4b 3b 2.5b 56 58 20 10a 6a 5b 3b 2.5b 2b 59 20 10a 8a 5a 4b 3b 2.5b 61 20 10a 6a 5b 3b 2.5b 2b 62 20 10a 6a 5b 3b 2.5b 2b 2b 65 20 10a 6a 5b 3b 2.5b 2b 20 8a 6a 4b 3b 2.5b 2b 64 20 8a 6a 4b 3b 2.5b 67 20 8a 6a 4b 3b 2.5b 2b 68 71 18 10a 8b 5b 3b 3b 2b 72 18 10a 8b 5b 4b 3b 2.5b 18 10a 8b 5b 3b 3b 2b 18 10a 8b 5b 3b 3b 2b 74 18 10a 8b 5b 3b 3b 2b 75 77 18 8b 6b 4b 3b 2.5 2c 78 80 18 8b 6b 4b 3b 2.5 2c Example: 8a 8 distance in feet between angle a letter indicates size of angle a 1 1/2” x 1 1/2 “ x 1/8” b 2” x 2” x 3/16” c 2 1/2” x 2 1/2” x 1/4” nr no reinforcement required 18
Single Wall Oval Reinforcement Chart Air Distribution Corporation OVAL REINFORCEMENT CHART Spiral Duct Nominal Oval Size Galv Ga. 20 x 26 Static Pressure (in w.g.) 0.5 1 2 4 6 10 22 nr nr nr nr nr nr 30 22 nr nr nr nr 6a 5a 33 22 nr nr nr 8a 5a 4a 36 22 nr nr 10a 6a 5a 4a 39 22 nr 10a 8a 6a 5a 3a 42 22 nr 10a 8a 5a 5a 3a 45 22 10a 10a 8a 5a 4a 3a 48 22 10a 10a 6a 5a 4a 3b 51 20 10a 10a 6a 5b 4b 3b 55 20 10a 10a 6a 5b 4b 3b 58 20 10a 8a 5a 4b 3b 2.5b 61 20 10a 8a 5a 4b 3b 2.5b 64 20 10a 6a 5b 3b 2.5b 2b 67 20 10a 6a 5b 3b 2.5b 2b 70 18 10a 8b 5b 4b 3b 2.5b 73 18 10a 8b 5b 4b 3b 2.5b 77 18 10a 8b 5b 3b 3b 2b 80 18 10a 8b 5b 3b 3b 2b Example: 8a 8 distance in feet between angle a letter indicates size of angle a 1 1/2” x 1 1/2 “ x 1/8” b 2” x 2” x 3/16” c 2 1/2” x 2 1/2” x 1/4” nr no reinforcement required 19
Single Wall Oval Oval Duct and Fittings Construction Standards Air Distribution Corporation . ACTUAL SPIRAL PIPE OVAL SIZES & CONSTRUCTION CHART Nominal Oval Size Galv Spiral Duct Ga. Galv. Fitting Ga. Weight lb/ft Actual Size 6 x 16 24 20 4.20 15.50 17 24 20 4.5 17.11 19 24 20 4.57 18.76
10 11 3-3/4" Depth 3-3/4" Depth Complete Specifications on pages 20-25. FV-05VS1 FV-08VSL150 CFM 4" Oval Duct FV-08VS1 80 CFM 4" Oval Duct FV-10VS1 100 CFM 4" Oval Duct 80 CFM 4" Oval Duct FV-10VSL1 100 CFM 4" Oval Duct SUPER LOW PROFILE CEILING/WALL MOUNT FAN SUPER LOW PROFILE CEILING MOUNT FAN WITH LIGHT
Single-wall flat oval duct and fittings are also available in carbon steel, paintable galvanized steel, and aluminized steel. 4. Aluminum single-wall flat oval duct and fittings are available in larger sizes and greater metal thicknesses on special order. 5. Fittings 16 gauge (Aluminum - 0.090 inch) or heavier are fully welded. 6.
The cross sectional area of a 6" oval duct is only 75% of that of a 6" round duct. An equivalent round duct would have a 5.1" diameter. This means that for a 6" oval to achieve the same flow rate as a 6" round, the airflow velocity in the oval duct is higher, leading to a greater pressure drop. Round ducts provide more efficient flow than oval .
Oval duct, 15 21. Oval to round boot, 15 22. Oval elbows, 16 23. Oval stackhead, 16 24. Top and side takeoffs. 16 25. Wall stack, 16 26. Branch elbows and angles, 16 . ment airflow and duct sizing. a description of air patterns generated by supply outlets and returns. guidelines for register and grille locations, and tips
Duct Width Spiral Seam Duct Gauge Fitting Gauge to 24" 24 20 25 to 36" 22 20 37 to 48" 22 18 49 to 60" 20 18 61 to 70" 20 16 71" and up 18 16 DUAL WALL OVAL DUCT AND FITTINGS CONSTRUCTION STANDARDS Outer Shell Positive Pressure Gauge selection for galvanized (ASTM A653). Fittings are manufactured with standing seam, welded seam .
The Great Wall of China is beautiful.There is no one who can climb the great wall all the way because when they climb the great wall to high they will feel sick.File Size: 608KBPage Count: 25Explore further[PDF] The Great Wall of China Semantic Scholarwww.semanticscholar.orgGreat Wall of China - HISTORYwww.history.comGreat Wall of China: Length, History, Map, Why & When Built Itwww.chinahighlights.comGreat Wall Of China, History, Facts, Culture & More .sublimechina.comA History of the Great Wall of Chinawww.worldscientific.comRecommended to you based on what's popular Feedback
SDR w/ EH Unit Size SDR SDR w/ SA For weights on equipment supplied with coils, see appropriate coil connection and weight submittal drawing for supplied coil weight, which must be added to the appropriate equipment weight listed above. Single Wall Double Wall Single Wall Double Wall Single Wall Double Wall 10 26 [12] 30 [14] 43 [19] 58 [26] 62 .
The American Revolution DID inspire other revolutions to follow. French Revolution (1789-1799) –partly because France was broke after helping us (and we broke our alliance partly thanks to George Washington’s advice against “entangling alliances”) Haitian Revolution (1791-1804) Mexican War of Independence (1810-1821)
