QF Tap-In
QF Tap-In Branch fittings are used to cut into existing duct lines at 90° to begin a Quick-Fit (QF) section in the system. Tap-In Branches are manufactured with QF rolled ends and come in galvanized or 304SS metal.
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Quick-Fit Duct Tap-In Branch fittings are used to cut into existing duct lines at 90 degrees to begin a Quick-Fit (QF) section in the system.
QF Tap-Ins are manufactured as follows:
- In galvanized or stainless-steel metal up to 24 inches in Diameter with standard 20 to 22 gauge and an optional 18 gauge. Galvanized only also has an optional 16 gauge
- The Longitudinal seam is tapped, spot welded, and caulked
- They are laser welded with QF rolled ends, which allows for quick connections to other QF components
- Collars are located on the exterior side of each port of which are considered as air flow non-directional and have a laser welded longitudinal seam
- A raised lap seam and spot weld are used for attaching the collar to the body and no caulking is used
- Diameters can surpass 24 inches, though only with Flanged ends and a manufactured Galvanized or Stainless steel standard 18 gauge
Tap-Ins with 12 or 14 gauge galvanized metal are available in the XD product line.
- In Sizes 25 inches and larger, Branches are manufactured with Angle Flange (ANGFL) ends instead of Rolled Edge ends.
- Standard QF ends can be changed to Raw with a defined ID dimension (RawID), Raw with a defined OD dimension (RawOD), No Fitting or just a raw end (NoFit), Flexible hose adapter (RawFlex), Flat Flange (FFL), Angle Flange (ANGFL), or Van Stone (VanStone).
| Size
in. |
Galvanized
ga. |
304SS
ga. |
Approx. Weight
lbs. |
OD
in. |
ID
in. |
Rolled Edge
nom. in. |
|---|---|---|---|---|---|---|
| 3 | 22 | 22[20] | 0.45 | 3.07 | 3.05 | 0.2 |
| 4 | 22[18] | 22[20] | 0.62 | 3.89 | 3.86 | 0.2 |
| 5 | 22[18] | 22[20] | 0.84 | 4.91 | 4.86 | 0.2 |
| 6 | 22[18] | 22[20] | 1.12 | 5.93 | 5.89 | 0.3 |
| 7 | 22[18] | 22[20] | 1.35 | 6.94 | 6.89 | 0.3 |
| 8 | 22[18,16] | 22[20,18] | 1.63 | 7.93 | 7.88 | 0.3 |
| 9 | 22[18,16] | 22[20,18] | 1.94 | 8.92 | 8.88 | 0.3 |
| 10 | 22[18,16] | 22[20,18] | 2.26 | 9.93 | 9.89 | 0.3 |
| 11 | 22[18,16] | 22[20,18] | 2.47 | 10.92 | 10.88 | 0.3 |
| 12 | 22[20,18] | 22[20,18] | 2.92 | 11.99 | 10.97 | 0.4 |
| 13 | 20[18,16] | 20[18] | 3.30 | 13.00 | 11.97 | 0.4 |
| 14 | 20[18,16] | 20[18] | 4.41 | 13.99 | 12.97 | 0.4 |
| 15 | 20[18,16] | 20[18] | 5.10 | 14.99 | 13.96 | 0.4 |
| 16 | 20[18,16] | 20[18] | 5.60 | 16.00 | 14.97 | 0.4 |
| 17 | 20[18,16] | 20[18] | 6.10 | 17.00 | 15.97 | 0.4 |
| 18 | 20[18,16] | 20[18] | 6.74 | 17.99 | 17.96 | 0.4 |
| 19 | 20[18,16] | 20[18] | 7.25 | 19.05 | 18.96 | 0.4 |
| 20 | 20[18,16] | 20[18] | 7.68 | 20.00 | 19.96 | 0.4 |
| 21 | 20[18,16] | 20[18] | 8.13 | 21.02 | 20.97 | 0.4 |
| 22 | 20[18,16] | 20[18] | 8.94 | 22.01 | 21.97 | 0.4 |
| 23 | 20[18,16] | 20[18] | 9.20 | 23.01 | 22.97 | 0.4 |
| 24 | 20[18,16] | 20[18] | 11.25 | 23.98 | 23.94 | 0.4 |
| 25 | 18 | 18 | 23.25 | N/A | 24.93 | ANGFL |
| 26 | 18 | 18 | 35.28 | 26.07 | 25.96 | ANGFL |
| 27 | 18 | 18 | 37.50 | N/A | 26.96 | ANGFL |
| 28 | 18 | 18 | 40.00 | 28.07 | 27.94 | ANGFL |
| 29 | 18 | 18 | 45.50 | N/A | 28.89 | ANGFL |
| 30 | 18 | 18 | 51.53 | 30.06 | 29.89 | ANGFL |
| 31 | 18 | 18 | 54.75 | N/A | 30.94 | ANGFL |
| 32 | 18 | 18 | 57.97 | 32.06 | 31.87 | ANGFL |
| 33 | 18 | 18 | 59.50 | N/A | 32.92 | ANGFL |
| 34 | 18 | 18 | 62.40 | 33.93 | 33.95 | ANGFL |
| 35 | 18 | 18 | 64.50 | N/A | 34.90 | ANGFL |
| 36 | 18 | 18 | 66.80 | 36.06 | 35.93 | ANGFL |
| 37 | 18 | 18 | 69.00 | N/A | 36.99 | ANGFL |
| 38 | 18 | 18 | 71.74 | 38.08 | 37.86 | ANGFL |
| 39 | 18 | 18 | 75.50 | N/A | 38.88 | ANGFL |
| 40 | 18 | 18 | 79.00 | 40.08 | 39.97 | ANGFL |
Galvanized Gauge Metal Thickness
| Gauge | Inches | Millimeters |
|---|---|---|
| 22 | 0.0366 | 0.85 |
| 20 | 0.0396 | 1.01 |
| 18 | 0.0516 | 1.31 |
| 16 | 0.0635 | 1.61 |
Stainless Gauge Metal Thickness
| Gauge | Inches | Millimeters |
|---|---|---|
| 22 | 0.031 | 0.79 |
| 20 | 0.0375 | 0.95 |
| 18 | 0.048 | 1.23 |
NOTES:
- At temperatures ranging between 390° F and 480° F, the zinc-iron alloy layers in the galvanized steel will continue to provide a high level of protection from corrosion. However, there may be some peeling, changes in mechanical properties, and reduction in the corrosion protection. Recommended maximum service temperature is 390° F.
- For 304 SS metal, bluing may occur at temperatures of 800° F and above.
- Rock River Silicone Sealant and Red Devil HVAC/R High Temperature Silicone Sealant are not able to be painted.
| Item | Material | Compliance/Rating |
|---|---|---|
| QF Tap-In | Galvanized | ASTM A653 with a G-90 Rating |
| 304 SS | Finish meets ASTM A240 | |
| 316 SS | Finish meets ASTM A240 | |
| 3M Scotch Seal Metal Sealant 2084 | Acetone blend | AAMA Specification 801.1 |
| Rock River Silicone Sealant | 100% Silicone | ASTM C920 Class 25 TT-S-00230C Class A and TT-S-001543A FDA No. 421 CFR 117.2600, conforms to FDA requirements |
| Red Devil HVAC/R High Temperature Silicone Sealant | Silicone | ASTM C920 Class 25 TT-S-00230C Class A and TT-S-001543A CEBTP 432.6 140-2 Mil Spec 46106A CGSB 19C9-9B DIN 18540 Part 2 OREX 150031-2 |