QF Canopy Hood

Canopy Hoods are small hoods for local exhaust ventilation. QF hoods are manufactured standard with 20ga galv. or optional 20 ga 304SS. Square ends are hemmed and come in standard sizes of 18″, 24″, 36″, or 48″ square. Round ends come standard QF in sizes 16 and 18 inches. Hood Design Basis is 150 fpm capture velocity, with a 2 ft distance from source. In the XD line
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Quick Fit Canopy Hoods are small hoods for local exhaust ventilation. They are economically priced and can be quickly produced and are available in standard sizes for standard pricing and quick turnaround. Collars are located on the exterior side of each port and considered as air flow non-directional.

Canopy Hoods are manufactured as follows:

  • With a Standard 20 gauge Galvanized metal or an optional 20 gauge Stainless Steel metal and have a raised lap seam that is spot welded, and caulked
  • Square ends have a hemmed edge and come in standard sizes of 18, 24, 36, or 48 inches square. Other sizes are available upon request with a maximum of 72 X 48 inches. If square ends have to be flanged, refer to transition parts
  • Round Ends are standard Quick Fit and come in diameter sizes of 16 and 18 inches
  • Collar is attached to the body by spot welding a raised lapped seam

Heavier gauged Canopy Hoods are available in the XD line.

  • Hood Design Basis: 150 fpm capture velosity with a 2ft. distance from the source.
  • Round end rolled edge is a nominal .2 inches.
  • 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.
Weight
lbs.
Length (L)
in.
Rect. End (A)
in.
Rect. End (B)
in.
OD
in.
Min. ID
in.
16 9 15.50 18 18 16.00 15.94
16 16 20.00 24 24 16.00 15.94
18 36 29.00 36 36 17.99 17.96
18 64 38.00 48 48 17.99 17.96
Galvanized Gauge Metal Thickness
Gauge Inches Millimeters
20 0.0396 1.01
Stainless Gauge Metal Thickness
Gauge Inches Millimeters
20 0.0375 0.95
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 Canopy Hood 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
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
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