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2" WGRectangular Duct StandardsPos. or Neg.S & Drive ConstructionFabricated in accordance with the 1995 SMACNA HVAC Duct Construction idthDepthWidthDepthDuctDimension0" - 10"0" - 30"11" - 14"0" - 30"15" - 26"0" - 30"27" - 30"0" - 30"31" - 36"0" - 30"0" - 10"0" - 30"1.2.3.4.5.6.Joint ConnectionT-6 Hemmed "S" SlipT-1 Drive SlipT-11 Standing "S" SlipT-1 Drive SlipT-13 Standing "S" SlipT-1 Drive SlipT-13 Standing "S" SlipT-1 Drive SlipT-13 Standing "S" SlipT-1 Drive SlipT-13 Standing "S" SlipT-1 Drive SlipMax.LengthMetalGaugeReinforcing Size and Longitudinal Spacing59"26Transverse Connection 59" O.C.59"26Transverse Connection 59" O.C.59"26Transverse Connection 59" O.C.59"24Transverse Connection 59" O.C.59"2459"24Transverse Connection 59" O.C.1" x 1" x 18 GA "Z" Maximum 30" from ConnectionTransverse Connection 59" O.C.1 1/2" x 1" x 18 GA "Z" Maximum 30" from ConnectionAll duct to be fabricated from G-90 galvanized steel sheetsAll duct to be stiffened with machine-formed beads at 12" O.C.All reinforcing to be galvanized steelAll reinforcing to be secured to the duct at 8" O.C.All drives over 18" to be reinforced by othersLongitudinal seams to be type L-2 button-punch snap-lockSpiral Pipe of TexasFort Worth, Texasph: 817.877.3543www.spotUSA.comrev. 06/17
2" WGRectangular Duct StandardsPos. or Neg.TDF Transverse JointsFabricated in accordance with the 1995 SMACNA HVAC Duct Construction idthDepthWidthDepthWidthDepthDuctDimension0" - 26"0" - 30"27" - 30"0" - 30"31" - 36"0" - 30"37" - 54"0" - 30"55" - 60"over 30"61" - 96"over 30"97" - 120"0" - 30"Joint ConnectionMax.LengthMetalGaugeReinforcing Size and Longitudinal SpacingTDF Flange56"26Transverse Connection 56" O.C.TDF Flange56"24Transverse Connection 56" O.C.TDF Flange56"24TDF Flange56"24* TDF Flange56"22* TDF Flange56"20* TDF Flange56"18Transverse Connection 56" O.C.1" x 1" x 18 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.1 1/2" x 1" x 18 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.1 1/2" x 1" x 16 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 12 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.3" x 1 1/8" x 12 GA "Z" Maximum 30" from Connection1. All duct to be fabricated from G-90 galvanized steel sheets2. All duct to be stiffened with machine-formed beads at 12" O.C.3. All reinforcing to be galvanized steel4. All reinforcing to be secured to the duct at 8" O.C.5. Longitudinal seams to be type L-1 Pittsburgh lock6. All seams to be sealed (Seal Class A)* 7. Reinforce all TDF flanges 55" and over with Tie Rodmaximum 48" O.C. at each end except where heaviergauge is used in lieu of gauge specified for that sizeSpiral Pipe of TexasFort Worth, Texasph: 817.877.3543www.spotUSA.comrev. 06/17
3" WGRectangular Duct StandardsPos. or Neg.TDF Transverse JointsFabricated in accordance with the 1995 SMACNA HVAC Duct Construction StandardsDuct DimensionJoint ConnectionMax.LengthMetalGauge0" - 26"TDF Flange56"2427" - 36"TDF Flange56"2437" - 42"TDF Flange56"2243" - 48"* TDF Flange56"2249" - 54"* TDF Flange56"2255" - 72"* TDF Flange56"2073" - 84"* TDF Flange56"2085" - 96"* TDF Flange56"1897" - 108"* TDF Flange56"18109" - 120"* TDF Flange56"18Reinforcing Size and Longitudinal SpacingTransverse Connection 56" O.C.Transverse Connection 56" O.C.1 1/2" x 1" x 18 GA "Z" Maximum 48" from ConnectionTransverse Connection 56" O.C.11 /2" x 1" x 18 GA "Z" Maximum 36" from ConnectionTransverse Connection 56" O.C.11 /2" x 1" x 16 GA "Z" Maximum 36" from ConnectionTransverse Connection 56" O.C.1 1/2" x 1" x 16 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 12 GA "Z" Maximum 36" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 12 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 12 GA "Z" Maximum 24" from ConnectionTransverse Connection 56" O.C.3" x 1 1/8" x 12 GA "Z" Maximum 24" from ConnectionTransverse Connection 56" O.C.3" x 1 1/8" x 10 GA "Z" Maximum 30" from Connection1. All duct to be fabricated from G-90 galvanized steel sheets2. All duct to be stiffened with machine-formed beads at 12" O.C.3. All reinforcing to be galvanized steel4. All reinforcing to be secured to the duct at 8" O.C.5. Longitudinal seams to be type L-1 Pittsburgh lock6. All seams to be sealed (Seal Class A)* 7. Reinforce all TDF flanges 43" and over with Tie Rodmaximum 48" O.C. at each end except where heaviergauge is used in lieu of gauge specified for that sizeSpiral Pipe of TexasFort Worth, Texasph: 817.877.3543www.spotUSA.comrev. 06/17
4" WGRectangular Duct StandardsPos. or Neg.TDF Transverse JointsFabricated in accordance with the 1995 SMACNA HVAC Duct Construction StandardsDuct DimensionJoint ConnectionMax.LengthMetalGauge0" - 22"TDF Flange56"2423" - 30"TDF Flange56"2431" - 36"TDF Flange56"2237" - 42"* TDF Flange56"2243" - 60"* TDF Flange56"2061" - 72"* TDF Flange56"2073" - 84"* TDF Flange56"2085" - 96"* TDF Flange56"1897" - 120"* TDF Flange56"18Reinforcing Size and Longitudinal SpacingTransverse Connection 56" O.C.Transverse Connection 56" O.C.1 1/2" x 1" x 18 GA "Z" Maximum 36" from ConnectionTransverse Connection 56" O.C.11 /2" x 1" x 18 GA "Z" Maximum 36" from ConnectionTransverse Connection 56" O.C.11 /2" x 1" x 16 GA "Z" Maximum 36" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 12 GA "Z" Maximum 36" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 12 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 10 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.3" x 1 1/8" x 12 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.3" x 1 1/8" x 10 GA "Z" Maximum 30" from Connection1. All duct to be fabricated from G-90 galvanized steel sheets2. All duct to be stiffened with machine-formed beads at 12" O.C.3. All reinforcing to be galvanized steel4. All reinforcing to be secured to the duct at 8" O.C.5. Longitudinal seams to be type L-1 Pittsburgh lock6. All seams to be sealed (Seal Class A)* 7. Reinforce all TDF flanges 37" and over with Tie Rodmaximum 48" O.C. at each end except where heaviergauge is used in lieu of gauge specified for that size8. Where reinforcing is required only on two sides, a frame willbe providedSpiral Pipe of TexasFort Worth, Texasph: 817.877.3543www.spotUSA.comrev. 06/17
6" WGRectangular Duct StandardsPos. or Neg.TDF Transverse JointsFabricated in accordance with the 1995 SMACNA HVAC Duct Construction StandardsDuct DimensionJoint ConnectionMax.LengthMetalGauge0" - 12"13" - 24"TDF FlangeTDF Flange56"56"242225" - 30"TDF Flange56"2231" - 36"* TDF Flange56"2237" - 42"* TDF Flange56"2243" - 60"* TDF Flange56"2061" - 72"* TDF Flange56"1873" - 84"* TDF Flange56"1885" - 108"* TDF Flange56"18Reinforcing Size and Longitudinal SpacingTransverse Connection 56" O.C.Transverse Connection 56" O.C.Transverse Connection 56" O.C.1 1/2" x 1" x 18 GA "Z" Maximum 36" from ConnectionTransverse Connection 56" O.C.1 1/2" x 1" x 16 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 12 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 12 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 10 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.3" x 1 1/8" x 12 GA "Z" Maximum 24" from ConnectionTransverse Connection 56" O.C.3" x 1 1/8" x 10 GA "Z" Maximum 24" from Connection1. All duct to be fabricated from G-90 galvanized steel sheets2. All duct to be stiffened with machine-formed beads at 12" O.C.3. All reinforcing to be galvanized steel4. All reinforcing to be secured to the duct at 8" O.C.5. Longitudinal seams to be type L-1 Pittsburgh lock6. All seams to be sealed (Seal Class A)* 7. Reinforce all TDF flanges 31" and over with Tie Rodmaximum 48" O.C. at each end except where heaviergauge is used in lieu of gauge specified for that size8. Where reinforcing is required only on two sides, a frame willbe providedSpiral Pipe of TexasFort Worth, Texasph: 817.877.3543www.spotUSA.comrev. 06/17
10" WGRectangular Duct StandardsPos. or Neg.TDF Transverse JointsFabricated in accordance with the 1995 SMACNA HVAC Duct Construction StandardsDuct DimensionJoint Connection0" - 8"Max.LengthMetalGaugeTDF Flange56"249" - 12"TDF Flange56"2413" - 18"TDF Flange56"2419" - 22"TDF Flange56"2223" - 26"* TDF Flange56"2227" - 36"* TDF Flange56"2037" - 42"* TDF Flange56"2043" - 48"* TDF Flange56"1849" - 54"* TDF Flange56"1855" - 60"* TDF Flange56"1861" - 72"* Ward J Flange56"1673" - 120"* Ward J Flange56"16Reinforcing Size and Longitudinal SpacingTransverse Connection 56" O.C.Transverse Connection 56" O.C.1 " x 1" x 18 GA "Z" Maximum 48" from ConnectionTransverse Connection 56" O.C.1 1/2" x 1" x 18 GA "Z" Maximum 36" from ConnectionTransverse Connection 56" O.C.1 1/2" x 1" x 18 GA "Z" Maximum 36" from ConnectionTransverse Connection 56" O.C.1 1/2" x 1" x 16 GA "Z" Maximum 36" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 12 GA "Z" Maximum 36" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 12 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 12 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.2" x 1 1/8" x 10 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.3" x 1 1/8" x 12 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.3" x 1 1/8" x 10 GA "Z" Maximum 30" from ConnectionTransverse Connection 56" O.C.** 3" x 1 1/8" x 10 GA "Z" Maximum 24" from Connection1. All duct to be fabricated from G-90 galvanized steel sheets2. All duct to be stiffened with machine-formed beads at 12" O.C.3. All reinforcing to be galvanized steel4. All reinforcing to be secured to the duct at 8" O.C.5. Longitudinal seams to be type L-1 Pittsburgh lock6. All seams to be sealed (Seal Class A)* 7. Reinforce all TDF flanges 23" and over with Tie Rodmaximum 48" O.C. at each end except where heaviergauge is used in lieu of gauge specified for that size** 8. Reinforce Z-bar 73" and over with tie rod at 48" maximumSpiral Pipe of TexasFort Worth, Texasph: 817.877.3543www.spotUSA.comrev. 06/17
2" WGRectangular Duct StandardsPos. or Neg.With Tie RodsFabricated in accordance with the 1995 SMACNA HVAC Duct Construction StandardsDuct DimensionJoint ConnectionMax.LengthMetalGaugeReinforcing Size and Longitudinal Spacing59"26Transverse Connection 59" O.C.56"56"56"56"56"2624222020Transverse Connection 56" O.C.Transverse Connection 56" O.C.Transverse Connection 56" O.C.Transverse Connection 56" O.C.Transverse Connection 56" O.C.Transverse Connection 56" O.C.11" - 26"27" - 30"31" - 36"37" - 42"43" - 48"T-6 Hemmed "S" SlipT-1 Drive SlipTDF FlangeTDF FlangeTDF FlangeTDF Flange* TDF Flange49" - 60"* TDF Flange56"2261" - 84"* TDF Flange56"2085" - 96"* TDF Flange56"2097" - 120"* TDF Flange56"180" - 10"(1) Tie Rod maximum 30" from connectionTransverse Connection 56" O.C.(1) Tie Rod maximum 30" from connectionTransverse Connection 56" O.C.(2) Tie Rod maximum 30" from connectionTransverse Connection 56" O.C.(2) Tie Rod maximum 30" from connection1. All duct to be fabricated from G-90 galvanized steel sheets2. All duct to be stiffened with machine-formed beads at 12" O.C.--- through 22 ga.3. All reinforcing to be galvanized steel4. All internal tie rods to be EMT conduit with threaded inserts5. Seal transverse joints only (Seal Class C)* 6. Reinforce all TDF flanges 55" and over with Tie Rodmaximum 43" O.C. at each end except where heavier--- over 22 ga.gauge is used in lieu of gauge specified for that size7. To be used for all systems not exceeding 2,000 FPM and/or 2" WGSpiral Pipe of TexasFort Worth, Texasph: 817.877.3543www.spotUSA.comrev. 06/17
4" WGRectangular Duct StandardsPos. or Neg.TDF Transverse Joints and Tie RodsFabricated in accordance with the 1995 SMACNA HVAC Duct Construction StandardsDuct DimensionJoint ConnectionMax.LengthMetalGauge0" - 22"23" - 28"29" - 30"31" - 36"TDF FlangeTDF Flange* TDF Flange* TDF Flange56"56"56"56"2422222037" - 48"* TDF Flange56"2249" - 60"* TDF Flange56"2261" - 72"* TDF Flange56"2073" - 96"* TDF Flange56"1897" - 120"* Ward J Flange60"16Reinforcing Size and Longitudinal SpacingTransverse Connection 56" O.C.Transverse Connection 56" O.C.Transverse Connection 56" O.C.Transverse Connection 56" O.C.Transverse Connection 56" O.C.(1) Tie Rod maximum 36" from connectionTransverse Connection 56" O.C.(2) Tie Rods maximum 30" from connectionTransverse Connection 56" O.C.(2) Tie Rods maximum 30" from connectionTransverse Connection 56" O.C.(2) Tie Rods maximum 30" from connectionTransverse Connection 60" O.C.(2) Tie Rods maximum 30" from connection1. All duct to be fabricated from G-90 galvanized steel sheets2. All duct to be stiffened with machine-formed beads at 12" O.C.3. All reinforcing to be galvanized steel4. All internal tie rods to be EMT conduit with threaded inserts5. Longitudinal seams to be type L-1 Pittsburgh lock6. All seams to be sealed (Seal Class A)* 7. Reinforce all TDF flanges 29" and over with Tie Rod maximum 48" O.C. at each endSpiral Pipe of TexasFort Worth, Texasph: 817.877.3543www.spotUSA.comrev. 06/17
6" WGRectangular Duct StandardsPos. or Neg.TDF Transverse Joints and Tie RodsFabricated in accordance with the 1995 SMACNA HVAC Duct Construction StandardsDuct DimensionJoint ConnectionMax.LengthMetalGauge0" - 12"13" - 24"25" - 26"27" - 30"31" - 36"TDF FlangeTDF FlangeTDF FlangeTDF Flange* TDF Flange56"56"56"56"56"242220181837" - 54"* TDF Flange56"2055" - 72"* TDF Flange56"1873" - 96"* Ward J Flange60"1697" - 120"* Ward J Flange60"16Reinforcing Size and Longitudinal SpacingTransverse Connection 56" O.C.Transverse Connection 56" O.C.Transverse Connection 56" O.C.Transverse Connection 56" O.C.Transverse Connection 56" O.C.Transverse Connection 56" O.C.(1) Tie Rod maximum 30" from connectionTransverse Connection 56" O.C.(1) Tie Rod maximum 30" from connectionTransverse Connection 60" O.C.(1) Tie Rod maximum 30" from connectionTransverse Connection 60" O.C.(2) Tie Rods maximum 30" from connection1. All duct to be fabricated from G-90 galvanized steel sheets2. All duct to be stiffened with machine-formed beads at 12" O.C.3. All reinforcing to be galvanized steel4. All internal tie rods to be EMT conduit with threaded inserts5. Longitudinal seams to be type L-1 Pittsburgh lock6. All seams to be sealed (Seal Class A)* 7. Reinforce all TDF flanges 31" and over with Tie Rod maximum 48" O.C. at each endSpiral Pipe of TexasFort Worth, Texasph: 817.877.3543www.spotUSA.comrev. 06/17
3" WG Rectangular Duct Standards Pos. or Neg. TDF Transverse Joints Fabricated in accordance with the 1995 SMACNA HVAC Duct Construction Standards Duct Dimension 0" - 26" 27" - 36" 56" 20 56" 24 56" 22 56" 22 56" 22 Spiral Pipe of Texas Fort Worth, Texas ph: 817.877.3543 www.spotUSA.com rev. 06/17
