QF Angle Flange Adapter

QF Angle Flange Adapters are fitted with an industry standard Angle flange on one end and a QF rolled edge at the other, allowing quick connection of QF duct pipe or fittings to flanged pipes or fittings. Longitudinal seam is solid welded. QF Angle Flange Adapters come in galvanized or 304SS metal. On the XD product line, the Angle Flange Adapter is manufactured in 14gauge galvanized metal.
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Quick-Fit Angle Flange Adapters are fitted with an industry standard Angle flange on one end and a Quick-Fit (QF) rolled edge at the other, allowing quick connection of QF duct pipe or fittings to flanged pipes or fittings. Longitudinal seam is solid welded. Adapter length can be adjusted.

QF Angle Flange Adapters are manufactured as follows:

  • In Galvanized or Stainless-steel metal up to 24 inches with a standard 20 to 22 gauge and an optional 18 gauge
  • Flanges are floating to allow easy match up to holes on existing Flanges and retained with a 3/8 inch Van Stone Lip
  • Angle flanged end can be modified to a 3/16 inch-thick Flat Flange(FFL) if a custom hole pattern is required

Angle Flanged Adapters in heavier gauged galvanized metal are available in the XD line.

  • Construction: Longitudinal seam is laser welded.
  • Angle Flange can be modified to a 3/16 " thick Flat Flange (FFL) to match your hole pattern.
Pipe Flange
Size
in.
Galv.
ga.
304SS
ga.
Wgt.
lbs.
Length
in.
ID
in.
OD
in.
Rolled Edge
in.
Hgt. (H)
in.
Thk. (T)
in.
ID
in.
B.C.
in.
OD
in.
Bolts
#
Hole Dia.
in.
3 22 22 0.60 5.125 3.00 3.07 0.2 1.00 0.1250 3.06 4.31 5.06 6 0.281
4 22 [18] 22 [20] 0.75 3.625 3.82 3.89 0.2 1.00 0.1250 4.06 5.31 6.06 6 0.281
5 22[18] 22 [20] 0.95 3.625 4.84 4.91 0.2 1.00 0.1250 5.06 6.31 7.06 6 0.281
6 22[18] 22 [20] 1.10 3.625 5.86 5.93 0.2 1.25 0.1250 6.09 7.31 8.59 6 0.281
7 22 [18] 22 [20] 1.35 3.625 6.87 6.94 0.3 1.25 0.1250 7.13 8.50 9.63 6 0.375
8 22[18, 16] 22 [20] 1.50 3.625 7.86 7.93 0.3 1.25 0.1250 8.13 9.56 10.63 6 0.375
9 22 [18, 16] 22 [20] 1.75 3.625 8.85 8.92 0.3 1.25 0.1250 9.13 10.63 11.63 6 0.438
10 22 [18, 16] 22 [20] 1.95 3.625 9.86 9.93 0.3 1.25 0.1250 10.13 11.81 12.63 6 0.438
11 22 [18, 16] 22 [20] 2.10 3.625 10.85 10.92 0.3 1.25 0.1250 11.13 12.75 13.63 6 0.438
12 22 [18, 16] 22 [20] 2.30 3.875 11.92 11.99 0.3 1.50 0.1250 12.13 14.00 15.13 8 0.438
13 20 [18, 16] 22 [20] 2.45 4.875 12.92 13.00 0.4 1.50 0.1250 13.13 15.00 16.13 8 0.438
14 20 [18, 16] 20 2.70 4.875 13.91 13.99 0.4 1.50 0.1250 14.13 16.00 17.13 8 0.438
15 20 [18, 16] 20 3.05 4.875 14.91 14.99 0.4 1.50 0.1250 15.13 17.00 18.13 8 0.438
16 20 [18, 16] 20 3.20 4.875 15.92 16.00 0.4 1.50 0.1875 16.13 18.00 19.13 8 0.438
17 20 [18, 16] 20 3.32 4.875 16.92 17.00 0.4 1.50 0.1875 17.13 19.00 20.13 8 0.438
18 20 [18, 16] 20 3.45 4.875 17.91 17.99 0.4 1.50 0.1875 18.13 20.00 21.13 8 0.438
19 20 [18, 16] 20 3.68 4.875 18.93 19.05 0.4 1.50 0.1875 19.13 20.75 22.13 8 0.438
20 20 [18, 16] 20 3.90 4.875 19.92 20.00 0.4 1.50 0.1875 20.13 21.75 23.13 12 0.438
21 20 [18, 16] 20 4.10 4.875 20.94 21.02 0.4 1.50 0.1875 21.13 22.75 24.13 12 0.438
22 20 [18, 16] 20 4.30 4.875 21.93 22.01 0.4 1.50 0.1875 22.13 23.75 25.13 12 0.438
23 20 [18, 16] 20 4.95 4.875 22.93 23.01 0.4 1.50 0.1875 23.13 24.88 26.13 12 0.438
24 20 [18, 16] 20 5.60 4.875 23.90 23.98 0.4 1.50 0.1875 24.13 25.88 27.13 12 0.438
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 0.0500 1.27
NOTES:
  1. 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.
  2. For 304 SS metal, bluing may occur at temperatures of 800° F and above.
  3. Rock River Silicone Sealant and Red Devil HVAC/R High Temperature Silicone Sealant are not able to be painted.
Item Material Compliance/Rating
QF Angle Flange Adapter 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
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