Nordfab Ducting

QF Manual Blast Gate

Nordfab manufactures ducting for use in dust, mist, and fume collection systems.

Our Quick-Fit^® Manual Blast Gate allows quick, manual shut-off of a section of ductwork.

This blast gate (damper) is constructed of a cast aluminum body with a galvanized steel blade and a standard Quick-Fit (QF) connection collar, unless otherwise specified. The SS model is 100% Stainless Steel; body and blade are heavy duty 12 gauge.

Collar available in galvanized steel and 304SS or optional 316SS or carbon steel
Available with flanged ends in diameters up to 30", and other various end types
Other gauges available for collar: 18, 16 and 14
QF Manual Blast Gates are a Nordfab Now^® product so items in the most commonly used sizes and material are in stock and can typically be shipped the day after order placement.

Contact Nordfab or your local Nordfab dealer for assistance with larger sizes and material / gauge options.

Quick-Fit has been used in a wide variety of applications, wherever dust collection or fine particulate transfer is required. Quick-Fit saves time and money on installation, is easy to clean out, is adaptable to existing ductwork, and is easily re-used during shop floor reconfigurations. Learn more about why Quick-Fit may be the best solution for you.

Specification

A. General Fabrication Requirements: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Ch. 3, "Round, Oval, and Flexible Duct," based on indicated static-pressure class unless otherwise indicated.
1. Construct ducts of galvanized sheet steel unless otherwise indicated. 304SS Optional.
2. Basis-of-Design Product: Subject to compliance with requirements, provide Nordfab Ducting, LLC; Quick Fit (QF) Duct.
B. Connection Joints: Joint types are fabricated in accordance with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible."
1. Quick Fit Joints in Ducts 3 to 24 inches (76 to 510 mm) in diameter. Flange: Optional.
2. Flanged Joints in All Ducts Greater than 24 inches (610 mm) in diameter.
C. Longitudinal Seams: Seam types are fabricated in accordance with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 3-2, "Round Duct Longitudinal Seams," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible."
1. Fabricated round ducts 3 to 24 inches (76 to 510 mm) in diameter to have laser-welded or plasma-welded longitudinal seams.
2. Fabricated round ducts above 24 inches (610 mm) in diameter to have plasma-welded longitudinal seams.