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 | Press Fit |
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About Duct Connections
More
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. Closed duct is stronger than open duct because it has a seam that is already locked in place.
Adjustable-angle elbow connectors can be used at an angle or straight.
Galvanized Steel | ||||||
|---|---|---|---|---|---|---|
| Trade Size | Female ID | Male OD | Gauge | End Construction | Each | |
| 3 | 3" | 2 7/8" | 26 | Crimped | 00000000 | 00000 |
Tee connectors join or split runs of duct.
Reducers connect duct with different diameters.
Trade Size | Aluminum | ||||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | Male OD (A) | Female ID (B) | Gauge | End Construction | Each | |
| 4 | 3 | 3 7/8" | 3" | 26 | Crimped | 0000000 | 000000 |
Reducers connect duct with different diameters.
Reducers connect duct with different diameters.
Trade Size | Female ID | Male OD | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (C) | (A) | (B) | (B) | (C) | Gauge | End Construction | Each | |
Galvanized Steel | ||||||||||
Female × Male × Male | ||||||||||
| 4 | 3 | 4 | 4" | __ | 2 7/8" | 3 7/8" | 26 | Crimped | 00000000 | 000000 |
| 5 | 3 | 5 | 5" | __ | 2 7/8" | 4 7/8" | 26 | Crimped | 0000000 | 00000 |
| 6 | 3 | 6 | 6" | __ | 2 7/8" | 5 7/8" | 26 | Crimped | 0000000 | 00000 |
Aluminum | ||||||||||
Female × Female × Male | ||||||||||
| 4 | 3 | 4 | 4" | 3" | __ | 3 7/8" | 26 | Crimped | 0000000 | 000000 |
| 5 | 3 | 5 | 5" | 3" | __ | 4 7/8" | 26 | Crimped | 0000000 | 000000 |
| 6 | 3 | 6 | 6" | 3" | __ | 5 7/8" | 26 | Crimped | 0000000 | 000000 |
304 Stainless Steel | ||||||||||
Female × Female × Male | ||||||||||
| 4 | 3 | 4 | 4" | 3" | __ | 3 7/8" | 26 | Crimped | 00000000 | 000000 |
| 5 | 3 | 5 | 5" | 3" | __ | 4 7/8" | 26 | Crimped | 00000000 | 000000 |
| 6 | 3 | 6 | 6" | 3" | __ | 5 7/8" | 26 | Crimped | 0000000 | 00000 |
Aluminum | ||||||
|---|---|---|---|---|---|---|
| Trade Size | Female ID | Includes | End Construction | Gauge | Each | |
Exhaust Vent | ||||||
| 3 | 3" | Damper | Plain | 24 | 0000000 | 000000 |
Downdraft diverters have an internal cone that prevents drafts from extinguishing pilot lights.
Galvanized Steel | ||||||
|---|---|---|---|---|---|---|
| Trade Size | Female ID | Male OD | Gauge | End Construction | Each | |
| 3 | 3" | 2 7/8" | 26 | Crimped | 0000000 | 000000 |
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 | |||||
|---|---|---|---|---|---|
5 ft. | |||||
| Trade Size | Female ID | End Construction | Gauge | 5 ft. | |
| 3 | 3" | Plain | 26 | 0000000 | 000000 |
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Trade Size | Male OD | Gauge | End Construction | Each | |
| 3 | 2 7/8" | 24 | Spiral | 0000000 | 000000 |
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Trade Size | Male OD | Gauge | End Construction | Each | |
| 3 | 2 7/8" | 24 | Spiral | 00000000 | 000000 |
Tee connectors join or split runs of duct.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Trade Size | Male OD | Gauge | End Construction | Each | |
| 3 | 2 7/8" | 24 | Plain | 00000000 | 000000 |
Wye connectors join or split runs of duct.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Trade Size | Male OD | Gauge | End Construction | Each | |
| 3 | 2 7/8" | 24 | Plain | 00000000 | 000000 |
Reducers connect duct with different diameters.
Trade Size | Male OD | Galvanized Steel | |||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | End Construction | Gauge | Each | |
| 4 | 3 | 3 7/8" | 2 7/8" | Plain | 24 | 0000000 | 000000 |
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Trade Size | Male OD | Gauge | End Construction | Each | |
Male | |||||
| 3 | 2 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, and 304 stainless steel 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.
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 | |
| 3 | 3 1/16" | 1" | 1" | 9/64" | No | 6 | 9/32" | Press Fit | 0000000 | 000000 |
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.
For technical drawings and 3-D models, click on a part number.
Flange | Steel | ||||||
|---|---|---|---|---|---|---|---|
| Trade Size | Female ID | Overall Dp. | Ht. | Thick. | Connection Type | Each | |
| 3 | 3 1/16" | 1" | 1" | 1/8" | Press Fit | 0000000 | 00000 |
Blast Gates
316 Stainless
Steel Gates
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.
ABS plastic gates work with plastic duct and duct hose. They withstand impact and abrasion.
On gates with a locking screw, use the screw to hold the slide in position. Gates with a stay-put slide do not require a locking screw.
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 | ||||||||
| 3 | 2 7/8" | 5" | 8 13/16" | 2 7/8" | Locking Screw | Press Fit | 000000 | 0000000 |
Overall | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Trade Size | Male OD | Wd. | Ht. | Dp. | Slide Color | Gate Color | Features | Connection Type | Each | |
ABS Plastic Slide | ||||||||||
| 3 | 2 7/8" | 4 1/2" | 8 1/8" | 3 1/16" | Black | Black | Stay-Put Slide | Press Fit | 00000000 | 00000 |
Self-Cleaning Blast Gates
Use in dust collection systems. The slide pushes through the top of the gate to clear debris. These blast gates control the flow of air and material through duct systems. The locking screw holds the gate’s slide in position.
Aluminum is lighter in weight than stainless steel and has good corrosion resistance. 304 stainless steel is more corrosion resistant than galvanized steel.
For technical drawings and 3-D models, click on a part number.
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 Blast Gates
More convenient than other blast gates, these automatic gates open and close in sync with dust collectors, fume exhausters, and other machines to control the flow of air and material. The double-acting air cylinder moves the gate.
For technical drawings and 3-D models, click on a part number.
Overall | Galvanized Steel Slide | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Trade Size | Male OD | Wd. | Ht. | Dp. | Voltage | Max. Pressure, psi | For Tube OD | Inlet Connection Type | Connection Type | Each | |
Galvanized Steel Gates | |||||||||||
| 3 | 2 7/8" | 6 1/4" | 12 3/4" | 5 7/8" | 120V AC | 90 | 1/4" | Push to Connect | Press Fit | 0000000 | 0000000 |