Clamping Duct Hanger

QF Clamp Hangers are manufactured in 14ga galv and 16ga SS from 3 to 24”. Tested by MET Laboratories to hold, without failure, up to 170 lbs for 9” and up to 850 lbs for 20″.
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Clamping Duct Hangers provides a sturdy connection that keeps pipe movement to a minimum. Clamping Hangers are not to be used as a connection.

The Clamping Duct Hanger is manufactured as follows:

  • from 3 to 24 inches in diameter in either 14 gauge Galvanize metal or 16 gauge 304SS Stainless Steel. Galvanized clamps are of an “overlapped” design
  • All clamp hangers are supplied with galvanized bridge pin. Small bridge pin comes with clamp sizes 4 to 6 inch, large pin with 7 inch and larger size clamps

Tested by MET Laboratories to hold, without failure, up to 170 lbs for 9 inch and up to 850 lbs for 20 inch Strut Hangers.

  • Manufactured in either 14 gauge Galvanize or 16 gauge 304SS Stainless Steel.
Size
in.
Wgt.
lbs
3 0.40
4 0.45
5 0.50
6 0.60
7 0.65
8 0.75
9 0.85
10 0.95
11 1.00
12 1.10
13 1.20
14 1.15
15 1.30
16 1.35
17 1.40
18 1.50
20 1.80
22 4.10
24 5.00
Galvanized Gauge Metal Thickness
Gauge Inches Millimeters
14 0.079 2.01
Stainless Gauge Metal Thickness
Gauge Inches Millimeters
16 0.0625 1.59
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
Clamping Duct Hanger Galvanized ASTM A653 with a G-90 Rating
304 SS Finish meets ASTM A240
316 SS Finish meets ASTM A240
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