Silencer
QF Silencers can significantly reduce the noise in a dust collection system, improving sound levels from fans and equipment. Due to varying applications, no decibel testing has been performed on this product. Silencers are manufactured in Galv. or 304SS.
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Quick Fit Silencers can significantly reduce the noise in a dust collection system, improving sound levels from fans and equipment. Due to varying applications, no decibel testing has been performed on this product.
QF Silencers are manufactured as follows:
- In sizes 3 to 16 inch diameters with 20 gauge metal and 18 to 40 inch diameters with 16 gauge metal, all in either Galvanized or 304SS Stainless Steel
- Silencers in the 3 to 24 inch diameters come with standard QF ends, while the 26 inches and larger come with a standard Angle Flange ends
- The outer tube on 14 inch diameter pipe and all smaller sizes, longitudinal seam is laser welded. On sizes 15 inch and greater, seam is lock formed
- Air flow directional arrows are painted on Silencers for ease of installation
- D = 2 Inches when Ends are QF.
- Sizes more than 26 inches come with Angle Flange Ends (ANGFL).
- 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. |
OD (B)
in. |
Length (C)
in. |
AF/FL (D)
in. |
Rolled Edge
nom. in. |
|---|---|---|---|---|---|---|---|
| 3 | 20 | 20 | 10 | 11 | 28 | 3.5 | 0.2 |
| 4 | 20 | 20 | 21 | 12 | 28 | 3.5 | 0.2 |
| 5 | 20 | 20 | 35 | 13 | 28 | 3.5 | 0.2 |
| 6 | 20 | 20 | 43 | 14 | 28 | 3.5 | 0.2 |
| 7 | 20 | 20 | 54 | 15 | 30 | 3.5 | 0.3 |
| 8 | 20 | 20 | 65 | 16 | 35 | 3.5 | 0.3 |
| 9 | 20 | 20 | 76 | 14 | 40 | 3.5 | 0.3 |
| 10 | 20 | 20 | 89 | 18 | 48 | 3.5 | 0.3 |
| 11 | 20 | 20 | 96 | 19 | 54 | 3.5 | 0.3 |
| 12 | 20 | 20 | 104 | 20 | 54 | 3.5 | 0.4 |
| 13 | 20 | 20 | 113 | 21 | 60 | 3.5 | 0.4 |
| 14 | 20 | 20 | 122 | 22 | 60 | 3.5 | 0.4 |
| 15 | 20 | 20 | 149 | 23 | 64 | 3.5 | 0.4 |
| 16 | 20 | 20 | 176 | 24 | 64 | 3.5 | 0.4 |
| 17 | 16 | 16 | 201 | 25 | 64 | 3.5 | 0.4 |
| 18 | 16 | 16 | 225 | 26 | 64 | 4.0 | 0.4 |
| 19 | 16 | 16 | 245 | 27 | 64 | 4.0 | 0.4 |
| 20 | 16 | 16 | 265 | 28 | 64 | 4.0 | 0.4 |
| 21 | 16 | 16 | 288 | 29 | 64 | 4.0 | 0.4 |
| 22 | 16 | 16 | 310 | 30 | 64 | 4.0 | 0.4 |
| 23 | 16 | 16 | 358 | 31 | 64 | 4.0 | 0.4 |
| 24 | 16 | 16 | 406 | 32 | 64 | 4.0 | 0.4 |
| 26 | 16 | 16 | 546 | 34 | 64 | 4.0 | ANGFL |
| 28 | 16 | 16 | 600 | 36 | 64 | 4.0 | ANGFL |
| 30 | 16 | 16 | 678 | 38 | 64 | 4.0 | ANGFL |
| 32 | 16 | 16 | 700 | 40 | 64 | 4.0 | ANGFL |
| 34 | 16 | 16 | 770 | 42 | 64 | 4.0 | ANGFL |
| 36 | 16 | 16 | 897 | 44 | 64 | 4.0 | ANGFL |
| 38 | 16 | 16 | 974 | 46 | 64 | 4.0 | ANGFL |
| 40 | 16 | 16 | 1118 | 48 | 64 | 4.0 | ANGFL |
Galvanized Gauge Metal Thickness
| Gauge | Inches | Millimeters |
|---|---|---|
| 20 | 0.0396 | 1.01 |
| 16 | 0.0635 | 1.61 |
Stainless Gauge Metal Thickness
| Gauge | Inches | Millimeters |
|---|---|---|
| 20 | 0.0375 | 0.95 |
| 16 | 0.0625 | 1.588 |
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 |
|---|---|---|
| Silencer Housing | Galvanize | ASTM A653 with a G-90 Rating |
| 304 SS | Finish meets ASTM A240 | |
| 316 SS | Finish meets ASTM A240 | |
| Silencer Perforated Tube | Galvanize (20ga) | ASTM A653 |
| Absorbant material | 3.5" thick fiberglass insulation stranded bats R19 value |
ASTM C518 |
| 3M Scotch Seal Metal Sealant 2084 | Acetone blend | AAMA Specification 801.1 |
| 3M Polyurethane Sealant 560 | Polyurethane | ASTM E 162 Bombardier SP 800-C |
| 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 |