QF Vibration Isolator

The QF Vibration Isolator is used to reduce vibrations from the fan to the ducting system. They are manufactured in 3 to 40 inch diameters, with 18, 20 or 22 ga. Galvanized or 304SS, and in lengths of 6.5,7 and 10“ based on the diameter.
Login or Create an Account to get Pricing for this part and to Build a Bill of Material List for your Ducting project.

The Quick Fit Vibration Isolator is used to reduce vibrations from the fan to the ducting system.

QF Vibration isolators are manufactured as follows:

  • In 3 to 40 inch diameters, with standard 18, 20 or 22 gauge Galvanized or 304SS Stainless Steel
  • They come in lengths of 6,5,7 and 10-inches based on the diameter size
  • The Collars have a laser welded longitudinal seam and are attached to the body using a raised hemmed spot welded seamed construction and are caulked
  • li>
  • . The 3 to 24 inch diameter Vibration Isolators come with standard QF ends while the 26 inches and larger come standard with Angle Flanged ends

Hose Clamps (3285) are used to secure the rubber to the metal ends.

  • Sizes more than 26 inches come with Angle Flange (ANGFL) ends.
  • Standard QF Rolled Edge 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.
Weight
lbs.
Length (L)
in.
OD
in.
ID
in.
Rolled Edge
nom. in.
3 22 22 1.50 6.5 3.07 3.00 0.2
4 22 22 2.00 6.5 3.89 3.82 0.2
5 22 22 2.30 6.5 4.91 4.84 0.2
6 22 22 2.90 6.5 5.93 5.86 0.2
7 22 22 3.45 6.5 6.94 6.87 0.3
8 22 22 3.80 6.5 7.93 7.86 0.3
9 22 22 4.20 6.5 8.92 8.85 0.3
10 22 22 4.80 6.5 9.93 9.86 0.3
11 22 22 5.10 6.5 10.92 10.85 0.3
12 22 22 5.60 6.5 11.99 11.92 0.4
13 20 20 6.00 6.5 13.00 12.92 0.4
14 20 20 7.60 6.5 13.99 13.91 0.4
15 20 20 7.10 6.5 14.99 14.91 0.4
16 20 20 8.60 6.5 16.00 15.92 0.4
17 20 20 9.35 6.5 17.00 16.92 0.4
18 20 20 10.15 6.5 17.99 17.91 0.4
20 20 20 12.40 6.5 20.00 19.92 0.4
22 20 20 14.90 6.5 22.01 21.93 0.4
24 20 20 17.60 7.0 23.98 23.90 0.4
26 18 18 49.28 10.0 26.07 25.94 ANGFL
28 18 18 59.00 10.0 28.07 27.24 ANGFL
30 18 18 63.43 10.0 30.06 29.94 ANGFL
32 18 18 71.90 10.0 32.06 31.94 ANGFL
34 18 18 79.40 10.0 33.93 33.06 ANGFL
36 18 18 88.50 10.0 36.06 35.93 ANGFL
38 18 18 76.20 10.0 38.08 37.94 ANGFL
40 18 18 110.40 10.0 40.08 39.94 ANGFL
Galvanized Gauge Metal Thickness
Gauge Inches Millimeters
22 0.0366 0.85
20 0.0396 1.01
18 0.0516 1.31
Stainless Gauge Metal Thickness
Gauge Inches Millimeters
22 0.031 0.79
20 0.0375 0.95
18 0.048 1.23
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.
Item Material Compliance/Rating
QF Vibration Isolator Galvanized ASTM A653 with a G-90 Rating
304 SS Finish meets ASTM A240
316 SS Finish meets ASTM A240
Rubber Neoprene sheet Grade 70
3/16" thick, color black
smooth both sides
ASTM D-2240 Hardness
3M Scotch Seal Metal Sealant 2084 Acetone blend AAMA Specification 801.1
Copyright © 2018 QF Ducting. All rights reserved.