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About Duct Connections
More
Quick-Disconnect Duct and Fittings
Join duct and fittings with quick-release clamps for faster disassembly and cleanout than other duct systems.
Galvanized steel has good corrosion resistance. Aluminum is lightweight and has good corrosion resistance. 304 stainless steel is the most corrosion resistant.
For technical drawings and 3-D models, click on a part number.
Adjustment sleeves extend your duct length. Cut duct, then slide on the sleeve. They include an o-ring for the clamp to grasp.
Adapters join quick-disconnect duct to other duct systems. Duct-to-duct adapters connect to standard and spiral duct. Duct-to-duct with flange adapters provide a secure connection between duct. Duct flanges are also available. Duct-to-hose adapters are slightly undersized. Slide hose over the adapter and hold it in place with a hose clamp (not included).
Standard Duct and Fittings
No need for clamps or connectors—duct and fittings press-fit together. Male ends are crimped or tapered, making them slightly smaller than a female end for simple assembly.
Galvanized steel has good corrosion resistance. Aluminum is more lightweight than steel and stainless steel and has good corrosion resistance. 304 stainless steel is more corrosion resistant than steel and aluminum.
For technical drawings and 3-D models, click on a part number.
Open duct can be cut with snips prior to installation. The seam snaps together without tools.
Galvanized Steel | ||||||
|---|---|---|---|---|---|---|
2 ft. | ||||||
| Trade Size | Female ID | Male OD | Gauge | End Construction | Each | |
Open Duct | ||||||
| 16 | 16" | 15 7/8" | 26 | Crimped | 0000000 | 000000 |
Adjustable-angle elbow connectors can be used at an angle or straight.
Galvanized Steel | ||||||
|---|---|---|---|---|---|---|
| Trade Size | Female ID | Male OD | Gauge | End Construction | Each | |
| 16 | 16" | 15 7/8" | 24 | Crimped | 0000000 | 0000000 |
Galvanized Steel | ||||||
|---|---|---|---|---|---|---|
| Trade Size | Female ID | Male OD | Gauge | End Construction | Each | |
| 16 | 16" | 15 7/8" | 24 | Crimped | 00000000 | 0000000 |
Tee connectors join or split runs of duct.
Airflow dampers control airflow through duct.
Galvanized Steel | ||||||
|---|---|---|---|---|---|---|
| Trade Size | Male OD | Gauge | End Construction | Blade Material | Each | |
Standard | ||||||
| 16 | 15 3/4" | 20 | Plain | Galvanized Steel | 00000000 | 000000 |
Collars create branches from a rectangular duct. Cut a hole in the duct and use a collar to attach standard duct. Collar with polyethylene gasket is self-sealing because the gasket has an adhesive back. The flange has 1/8" dia. mounting holes.
Crush-Resistant Spiral Duct and Fittings
A spiral seam makes this duct strong and rigid. Fittings have male ends with a slightly smaller diameter to press-fit into duct.
Galvanized steel has good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Trade Size | Male OD | Gauge | End Construction | Each | |
| 16 | 15 7/8" | 24 | Spiral | 0000000 | 0000000 |
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Trade Size | Male OD | Gauge | End Construction | Each | |
| 16 | 15 7/8" | 24 | Spiral | 00000000 | 0000000 |
Tee connectors join or split runs of duct.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Trade Size | Male OD | Gauge | End Construction | Each | |
| 16 | 15 7/8" | 24 | Plain | 00000000 | 0000000 |
Wye connectors join or split runs of duct.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Trade Size | Male OD | Gauge | End Construction | Each | |
| 16 | 15 7/8" | 24 | Plain | 00000000 | 0000000 |
Reducers connect duct with different diameters.
Trade Size | Male OD | Galvanized Steel | |||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | End Construction | Gauge | Each | |
| 16 | 14 | 15 7/8" | 13 7/8" | Plain | 24 | 0000000 | 000000 |
Collars create branches from a rectangular duct. Cut a hole in the duct and use a collar to attach spiral duct.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Trade Size | Male OD | Gauge | End Construction | Each | |
Male | |||||
| 16 | 15 7/8" | 24 | Plain | 0000000 | 000000 |
Duct Flanges
Bolt flanges to equipment to start a run of duct. They can also create secure connections between two duct ends by mounting a flange to each end and then joining the flanges.
Steel, galvanized steel, 304 stainless steel, and aluminum flanges are also known as angle rings.
Galvanized steel flanges have good corrosion resistance. Aluminum flanges have good corrosion resistance in wet environments, and weigh less than steel and stainless steel flanges. 304 stainless steel flanges are more corrosion resistant than steel. PVC plastic flanges are chemical resistant and withstand harsh environments. They’re compatible with Chemical-Resistant Duct and Fittings.
For technical drawings and 3-D models, click on a part number.
Flange | Mounting | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Trade Size | Female ID | Overall Dp. | Ht. | Thick. | Fasteners Included | No. of Holes | Hole Dia. | Connection Type | Each | |
Steel | ||||||||||
| 16 | 16 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 8 | 7/16" | Press Fit | 0000000 | 000000 |
Galvanized Steel | ||||||||||
| 16 | 16 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
304 Stainless Steel | ||||||||||
| 16 | 16 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
Alumiunum | ||||||||||
| 16 | 16 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
Flange | Mounting | PVC Plastic | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Trade Size | Female ID | Overall Dp. | Ht. | Thick. | Fasteners Included | No. of Holes | Hole Dia. | Connection Type | Each | |
| 16 | 16" | 3 1/2" | 1 3/4" | 1/4" | No | 18 | 5/16" | Press Fit | 0000000 | 0000000 |
Weld-On Duct Flanges
Weld flanges to equipment to start a run of duct. They can also create secure connections between two duct ends by mounting a flange to each end and then joining the flanges. Also known as angle rings.
304 stainless steel flanges are more corrosion resistant than steel.
For technical drawings and 3-D models, click on a part number.
Blast Gates
Stainless Steel
Gate Material
Control the flow of air and material through duct systems.
Aluminum is more lightweight than stainless steel and has good corrosion resistance. 304 stainless steel is more corrosion resistant than galvanized steel. 316 stainless steel has excellent corrosion resistance.
On gates with a locking screw, use the screw to hold the slide in position.
For technical drawings and 3-D models, click on a part number.
Overall | ||||||||
|---|---|---|---|---|---|---|---|---|
| Trade Size | Male OD | Wd. | Ht. | Dp. | Features | Connection Type | Each | |
316 Stainless Steel Slide | ||||||||
| 16 | 15 7/8" | 18" | 42 1/8" | 4 5/16" | Locking Screw | Press Fit | 0000000 | 0000000 |
Easy-Install Blast Gates
Often added to existing systems, these gates install without disassembling duct. Also known as half gates, these blast gates control the flow of air and material through duct systems. The locking screw holds the gate’s slide in position.
304 stainless steel is more corrosion resistant than galvanized steel.
For technical drawings and 3-D models, click on a part number.
Automatic Airflow Dampers
Save energy and increase comfort by heating and cooling only the areas that need it. Dampers automatically close when signaled by a thermostat or switch (not included).
For technical drawings and 3-D models, click on a part number.
Overall | Galvanized Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Trade Size | Female ID | Male OD | Ht. | Wd. | Gauge | Electrical Connection Type | Voltage | End Construction | Connection Type | Each | |
| 16 | 16" | 15 7/8" | 20 1/4" | 18" | 22 | Hardwire | 24V AC | Crimped | Press Fit | 0000000 | 0000000 |