About Duct Connections
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About Gradual On/Off Valves
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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.
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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Duct Size | Female ID | Male OD | Wd. | Ht. | Dp. | Features | Connection Type | Each | |
Galvanized Steel Slide | |||||||||
| 2 | 2" | __ | 3 5/8" | 6 1/4" | 1 7/8" | Locking Screw | Press Fit | 0000000 | 000000 |
| 3 | __ | 2 13/16" | 4" | 7 9/16" | 1 7/8" | Locking Screw | Press Fit | 0000000 | 00000 |
| 3 1/2 | __ | 3 3/8" | 4 5/8" | 9" | 2 5/8" | Locking Screw | Press Fit | 0000000 | 00000 |
| 4 | __ | 3 13/16" | 5" | 9 15/16" | 1 7/8" | Locking Screw | Press Fit | 0000000 | 00000 |
| 4 1/2 | __ | 4 3/8" | 5 3/4" | 11 3/8" | 2 5/8" | Locking Screw | Press Fit | 0000000 | 00000 |
| 5 | __ | 4 3/4" | 6" | 12 1/2" | 2 1/8" | Locking Screw | Press Fit | 0000000 | 00000 |
| 6 | __ | 5 9/16" | 7" | 14 1/2" | 2 1/8" | Locking Screw | Press Fit | 0000000 | 00000 |
| 7 | __ | 6 13/16" | 8" | 15 5/8" | 2 1/2" | Locking Screw | Press Fit | 0000000 | 00000 |
| 8 | __ | 7 13/16" | 9 5/8" | 18 3/4" | 4" | Locking Screw | Press Fit | 0000000 | 00000 |
| 9 | __ | 8 7/8" | 10 5/8" | 20 3/8" | 3 7/16" | Locking Screw | Press Fit | 0000000 | 000000 |
| 10 | __ | 9 13/16" | 11 3/8" | 22 3/8" | 3 3/4" | Locking Screw | Press Fit | 0000000 | 000000 |
| 12 | __ | 11 13/16" | 13 1/4" | 27 3/8" | 3 5/8" | Locking Screw | Press Fit | 0000000 | 000000 |
| 14 | __ | 13 11/16" | 15 3/4" | 30 3/8" | 4 3/8" | Locking Screw | Press Fit | 0000000 | 000000 |
| 16 | __ | 15 11/16" | 17 7/8" | 35 9/16" | 4 3/8" | Locking Screw | Press Fit | 0000000 | 000000 |
| 18 | __ | 17 11/16" | 20 1/8" | 41 1/4" | 7" | Locking Screw | Press Fit | 0000000 | 000000 |
304 Stainless Steel Slide | |||||||||
| 2 | __ | 2 5/16" | 3 5/8" | 5 7/8" | 1 15/16" | Locking Screw | Press Fit | 00000000 | 00000 |
| 3 | __ | 2 13/16" | 4" | 7" | 1 7/8" | Locking Screw | Press Fit | 00000000 | 00000 |
| 4 | __ | 3 13/16" | 5" | 9 1/8" | 1 7/8" | Locking Screw | Press Fit | 00000000 | 00000 |
| 5 | __ | 4 3/4" | 6" | 11 3/4" | 2 1/8" | Locking Screw | Press Fit | 00000000 | 00000 |
| 6 | __ | 5 7/8" | 7" | 14 3/8" | 2 1/8" | Locking Screw | Press Fit | 00000000 | 00000 |
| 7 | __ | 6 13/16" | 8" | 15 5/8" | 2 1/2" | Locking Screw | Press Fit | 00000000 | 00000 |
| 8 | __ | 7 13/16" | 9 5/8" | 18 1/8" | 3 1/2" | Locking Screw | Press Fit | 00000000 | 00000 |
| 10 | __ | 9 13/16" | 11 3/8" | 22 1/8" | 3 3/4" | Locking Screw | Press Fit | 00000000 | 00000 |
| 12 | __ | 11 13/16" | 13 1/4" | 26 3/4" | 3 5/8" | Locking Screw | Press Fit | 00000000 | 00000 |
| 14 | __ | 13 13/16" | 15 3/4" | 30 1/8" | 4 3/8" | Locking Screw | Press Fit | 00000000 | 000000 |
| 16 | __ | 15 7/8" | 17 7/8" | 34 7/8" | 4 3/8" | Locking Screw | Press Fit | 00000000 | 000000 |
| 18 | __ | 17 11/16" | 20 3/16" | 40 3/8" | 7" | Locking Screw | Press Fit | 00000000 | 000000 |
Overall | ||||||||
|---|---|---|---|---|---|---|---|---|
| Duct Size | Male OD | Wd. | Ht. | Dp. | Features | Connection Type | Each | |
316 Stainless Steel Slide  | ||||||||
| 2 | 1 7/8" | 3 1/2" | 6" | 2 5/16" | Locking Screw | Press Fit | 000000 | 0000000 |
| 3 | 2 7/8" | 5" | 8 5/8" | 2 7/8" | Locking Screw | Press Fit | 000000 | 000000 |
| 4 | 3 7/8" | 6" | 11 1/8" | 3 5/16" | Locking Screw | Press Fit | 000000 | 000000 |
| 5 | 4 7/8" | 7" | 14 1/8" | 3 5/16" | Locking Screw | Press Fit | 000000 | 000000 |
| 6 | 5 7/8" | 8" | 16 5/8" | 3 5/16" | Locking Screw | Press Fit | 000000 | 000000 |
| 7 | 6 7/8" | 9" | 19 1/8" | 3 5/16" | Locking Screw | Press Fit | 000000 | 000000 |
| 8 | 7 7/8" | 10" | 21 1/8" | 4 1/4" | Locking Screw | Press Fit | 0000000 | 000000 |
| 9 | 8 7/8" | 11" | 23 5/8" | 4 1/4" | Locking Screw | Press Fit | 0000000 | 000000 |
| 10 | 9 7/8" | 12" | 26 5/8" | 4 5/16" | Locking Screw | Press Fit | 0000000 | 000000 |
| 12 | 11 7/8" | 14" | 31 7/8" | 4 5/16" | Locking Screw | Press Fit | 0000000 | 000000 |
| 14 | 13 7/8" | 16" | 36 11/16" | 4 5/16" | Locking Screw | Press Fit | 0000000 | 000000 |
| 16 | 15 7/8" | 18" | 42 1/8" | 4 5/16" | Locking Screw | Press Fit | 0000000 | 00000000 |
Overall | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Duct 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 |
| 4 | 3 7/8" | 5 1/2" | 10 1/8" | 3 5/16" | Black | Black | Stay-Put Slide | Press Fit | 00000000 | 00000 |
| 5 | 4 7/8" | 6 1/2" | 12 1/8" | 3 5/16" | Black | Black | Stay-Put Slide | Press Fit | 00000000 | 00000 |
| 6 | 5 7/8" | 7 1/2" | 14 1/4" | 3 5/16" | Black | Black | Stay-Put Slide | Press Fit | 00000000 | 00000 |
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 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Duct Size | Male OD | Wd. | Ht. | Dp. | Voltage | Max. Pressure, psi | For Tube OD | Inlet Connection Type | Connection Type | Each | |
Galvanized Steel Gates | |||||||||||
| 2 | 1 7/8" | 6 3/8" | 14 3/4" | 6 3/16" | 120V AC | 90 | 1/4" | Push to Connect | Press Fit | 0000000 | 0000000 |
| 3 | 2 7/8" | 6 3/8" | 14 3/4" | 5 3/4" | 120V AC | 90 | 1/4" | Push to Connect | Press Fit | 0000000 | 000000 |
| 4 | 3 7/8" | 7 1/4" | 16 1/4" | 5 3/4" | 120V AC | 90 | 1/4" | Push to Connect | Press Fit | 0000000 | 000000 |
| 5 | 4 7/8" | 8 1/4" | 19" | 5 3/4" | 120V AC | 90 | 1/4" | Push to Connect | Press Fit | 0000000 | 000000 |
| 6 | 5 7/8" | 9 1/4" | 22" | 5 3/4" | 120V AC | 90 | 1/4" | Push to Connect | Press Fit | 0000000 | 000000 |
| 8 | 7 7/8" | 11" | 27 7/8" | 5 3/4" | 120V AC | 90 | 1/4" | Push to Connect | Press Fit | 0000000 | 000000 |
| 10 | 9 7/8" | 15" | 33 5/8" | 5 3/4" | 120V AC | 90 | 1/4" | Push to Connect | Press Fit | 0000000 | 000000 |
| 12 | 11 7/8" | 17 1/4" | 40 1/2" | 5 3/4" | 120V AC | 90 | 1/4" | Push to Connect | Press Fit | 0000000 | 000000 |
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.
Overall | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Duct Size | Female ID | Male OD | Wd. | Ht. | Dp. | Features | Connection Type | Each | |
Galvanized Steel Slide | |||||||||
Aluminum Gates | |||||||||
| 2 | 2" | __ | 3 11/16" | 6 1/4" | 1 15/16" | Locking Screw | Press Fit | 00000000 | 000000 |
| 3 | __ | 2 13/16" | 4" | 7 3/8" | 1 15/16" | Locking Screw | Press Fit | 00000000 | 00000 |
| 4 | __ | 3 7/8" | 5" | 9 9/16" | 1 7/8" | Locking Screw | Press Fit | 00000000 | 00000 |
| 5 | __ | 4 3/4" | 6" | 11 13/16" | 2 3/16" | Locking Screw | Press Fit | 00000000 | 00000 |
| 6 | __ | 5 13/16" | 7" | 14 3/16" | 2 1/8" | Locking Screw | Press Fit | 00000000 | 00000 |
| 7 | __ | 6 13/16" | 8" | 16 9/16" | 2 1/2" | Locking Screw | Press Fit | 00000000 | 00000 |
| 8 | __ | 7 7/8" | 9 5/8" | 18 7/8" | 3 1/2" | Locking Screw | Press Fit | 00000000 | 00000 |
| 10 | __ | 9 13/16" | 11 3/8" | 22 11/16" | 3 11/16" | Locking Screw | Press Fit | 00000000 | 00000 |
| 12 | __ | 11 13/16" | 13 1/4" | 27 7/16" | 3 11/16" | Locking Screw | Press Fit | 00000000 | 00000 |
304 Stainless Steel Slide | |||||||||
Aluminum Gates | |||||||||
| 3 | __ | 2 13/16" | 4" | 7 3/8" | 1 15/16" | Locking Screw | Press Fit | 00000000 | 00000 |
| 4 | __ | 3 7/8" | 5" | 9 9/16" | 1 7/8" | Locking Screw | Press Fit | 00000000 | 00000 |
| 5 | __ | 4 3/4" | 6" | 11 13/16" | 2 3/16" | Locking Screw | Press Fit | 00000000 | 00000 |
| 6 | __ | 5 13/16" | 7" | 14 3/16" | 2 1/8" | Locking Screw | Press Fit | 00000000 | 00000 |
| 7 | __ | 6 13/16" | 8" | 16 9/16" | 2 1/2" | Locking Screw | Press Fit | 00000000 | 00000 |
| 8 | __ | 7 7/8" | 9 5/8" | 18 7/8" | 3 1/2" | Locking Screw | Press Fit | 00000000 | 00000 |
| 10 | __ | 9 13/16" | 11 3/8" | 22 11/16" | 3 11/16" | Locking Screw | Press Fit | 00000000 | 000000 |
| 12 | __ | 11 13/16" | 13 1/4" | 27 7/16" | 3 11/16" | Locking Screw | Press Fit | 00000000 | 000000 |
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.
Overall | Galvanized Steel Slide | 304 Stainless Steel Slide | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Duct Size | Wd. | Ht. | Dp. | Features | Connection Type | Each | Each | ||
Aluminum Gates | |||||||||
| 3 | 4 1/2" | 6" | 2 1/4" | Locking Screw | Press Fit | 000000 | 000000 | 00000000 | 000000 |
| 3 1/2 | 4 5/8" | 7" | 2 1/2" | Locking Screw | Press Fit | 0000000 | 00000 | 000000 | 00 |
| 4 | 5 1/8" | 7" | 2 3/8" | Locking Screw | Press Fit | 000000 | 00 | 00000000 | 00000 |
| 4 | 5 3/8" | 7 1/8" | 2 1/4" | Locking Screw | Press Fit | 000000 | 00000 | 000000 | 00 |
| 4 1/2 | 6" | 8" | 2 1/2" | Locking Screw | Press Fit | 0000000 | 00000 | 000000 | 00 |
| 5 | 6 5/8" | 8 7/8" | 2 1/4" | Locking Screw | Press Fit | 000000 | 00 | 00000000 | 00000 |
| 5 | 6 3/4" | 9" | 2 1/4" | Locking Screw | Press Fit | 000000 | 00000 | 000000 | 00 |
| 6 | 7 7/8" | 10 1/2" | 2 3/4" | Locking Screw | Press Fit | 000000 | 00000 | 000000 | 00 |
| 6 | 7 7/8" | 10 1/2" | 2 7/8" | Locking Screw | Press Fit | 000000 | 00 | 00000000 | 00000 |
| 7 | 8 1/2" | 12 1/8" | 2 1/2" | Locking Screw | Press Fit | 000000 | 00000 | 00000000 | 000000 |
| 8 | 10" | 13" | 2 1/2" | Locking Screw | Press Fit | 000000 | 00000 | 000000 | 00 |
| 8 | 10" | 13" | 2 3/4" | Locking Screw | Press Fit | 000000 | 00 | 00000000 | 000000 |
| 9 | 10 3/4" | 15" | 2 3/4" | Locking Screw | Press Fit | 000000 | 00 | 00000000 | 000000 |
| 9 | 11" | 15 1/2" | 2 5/8" | Locking Screw | Press Fit | 000000 | 00000 | 000000 | 00 |
| 10 | 11 1/4" | 16" | 3" | Locking Screw | Press Fit | 000000 | 00 | 00000000 | 000000 |
| 10 | 11 1/2" | 17 1/4" | 2 3/4" | Locking Screw | Press Fit | 000000 | 00000 | 000000 | 00 |
| 12 | 13 1/8" | 20" | 3" | Locking Screw | Press Fit | 000000 | 00 | 00000000 | 000000 |
| 12 | 13 3/4" | 19 3/4" | 3 1/8" | Locking Screw | Press Fit | 000000 | 000000 | 000000 | 00 |
| 14 | 16 1/2" | 23 3/8" | 4 1/8" | Locking Screw | Press Fit | 000000 | 00 | 00000000 | 000000 |
| 14 | 16 1/2" | 23 1/2" | 4 1/8" | Locking Screw | Press Fit | 0000000 | 000000 | 000000 | 00 |
| 16 | 18 3/8" | 26 1/2" | 4 1/4" | Locking Screw | Press Fit | 000000 | 00 | 00000000 | 000000 |
| 16 | 18 5/8" | 27" | 4 1/8" | Locking Screw | Press Fit | 0000000 | 000000 | 000000 | 00 |
Quick-Disconnect Duct and Fittings
Join duct and fittings with quick-release clamps for faster disassembly and cleanout than other duct systems.
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.
Blast gates stop airflow when closed.
Aluminum | 304 Stainless Steel | ||||||
|---|---|---|---|---|---|---|---|
| Duct Size | ID | End Construction | Blade Material | Each | Each | ||
| 3 | 3" | Rolled | Galvanized Steel | 00000000 | 000000 | 000000 | 00 |
| 4 | 4" | Rolled | Galvanized Steel | 0000000 | 00000 | 00000000 | 0000000 |
| 5 | 5" | Rolled | Galvanized Steel | 0000000 | 00000 | 00000000 | 000000 |
| 6 | 6" | Rolled | Galvanized Steel | 0000000 | 00000 | 00000000 | 000000 |
| 7 | 7" | Rolled | Galvanized Steel | 0000000 | 00000 | 00000000 | 000000 |
| 8 | 8" | Rolled | Galvanized Steel | 00000000 | 00000 | 00000000 | 000000 |
| 9 | 9" | Rolled | Galvanized Steel | 00000000 | 000000 | 00000000 | 000000 |
| 10 | 10" | Rolled | Galvanized Steel | 00000000 | 000000 | 00000000 | 000000 |
| 12 | 12" | Rolled | Galvanized Steel | 00000000 | 000000 | 00000000 | 000000 |
| 14 | 14" | Rolled | Galvanized Steel | 00000000 | 000000 | 00000000 | 000000 |
| 16 | 16" | Rolled | Galvanized Steel | 00000000 | 000000 | 00000000 | 000000 |
| 18 | 18" | Rolled | Galvanized Steel | 00000000 | 000000 | 000000 | 00 |
| 20 | 20" | Rolled | Galvanized Steel | 00000000 | 000000 | 000000 | 00 |
| 22 | 22" | Rolled | Galvanized Steel | 00000000 | 000000 | 000000 | 00 |
| 24 | 24" | Rolled | Galvanized Steel | 00000000 | 000000 | 000000 | 00 |
Chemical-Resistant Duct and Fittings
Made of PVC plastic to withstand acids, alkalies, salts, and other corrosive vapors and fumes. Use PVC pipe cement (not included) to secure components. Fittings have female ends with a slightly larger diameter to press-fit over duct.
For technical drawings and 3-D models, click on a part number.
Design-Your-Own Dust Collector Duct System
Use these components (sold separately) to put together a duct system to collect sawdust, chips, shavings, and granular material from woodworking operations. Hose clamps are available.
For maximum safety and to avoid a dangerous buildup of static electricity, you must use the grounding kit (sold separately).
If you need more information on designing and installing a dust collection system, order our book "Dust Collection Basics."
Gradual On/Off Valves with Quick-Clamp Fittings for High Vacuum
Also known as vacuum isolation valves, these block flow so you can install and remove gauges from your system. They can also be used to add or vent gases in high-vacuum systems. Valves gradually open and close with multiple turns of the wheel handle to prevent system damage from suddenly starting and stopping flow. They connect to another quick-clamp fitting with a clamp and a ring (sold separately). All have a nonrising stem that stays in the same position whether the valve is open or closed. Body is 304 stainless steel for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- Valve Type: Gate
- For Use With: Air
- For Tube Material: 304/304L Stainless Steel, 316/316L Stainless Steel
- Seal Material: Viton® Fluoroelastomer Rubber
- Specifications Met: ISO 2861
O'all | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | Flange OD | Max. Vacuum | Temp. Range, °F | Ht. | Lg. | High-Vacuum Flange Size | Sterilize With | Stem Type | Each | |
Quick Clamp | ||||||||||
304 Stainless Steel Body—316 Stainless Steel Gate | ||||||||||
| 1/2" | 1 3/16" | 10 -7 torr @ 72° F | 0° to 190° | 4 1/8" | 2 1/4" | 10 | Steam (Autoclaving) | Nonrising | 00000000 | 0000000 |
| 3/4" | 1 3/16" | 10 -7 torr @ 72° F | 0° to 190° | 4 1/8" | 2 1/4" | 16 | Steam (Autoclaving) | Nonrising | 00000000 | 000000 |
| 1" | 1 9/16" | 10 -7 torr @ 72° F | 0° to 190° | 5 5/8" | 3" | 25 | Steam (Autoclaving) | Nonrising | 00000000 | 000000 |
| 1 1/2" | 2 1/8" | 10 -7 torr @ 72° F | 0° to 190° | 6 3/8" | 3 7/8" | 40 | Steam (Autoclaving) | Nonrising | 00000000 | 000000 |
| 2" | 2 15/16" | 10 -7 torr @ 72° F | 0° to 190° | 8" | 4 1/2" | 50 | Steam (Autoclaving) | Nonrising | 00000000 | 000000 |
- For Use With: Air
- O-Ring Material: Fluoroelastomer Rubber
- For Tube Material: 304/304L Stainless Steel, 316/316L Stainless Steel
- Inner Ring Material: 304 Stainless Steel
- Specifications Met: ISO 2861
Use these rings with quick-clamp high-vacuum fittings. They consist of a stainless steel inner ring covered by a fluoroelastomer O-ring.
Rings with screen have a stainless steel screen to filter out large particles.
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | Max. Vacuum | Temp. Range, °F | Lg. | Max. Pressure | Each | |
Rings | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/2" | 1.18" | 10 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | Not Rated | 00000000 | 00000 |
| 3/4" | 1.18" | 16 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | Not Rated | 00000000 | 0000 |
| 1" | 1.57" | 25 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | Not Rated | 0000000 | 00000 |
| 1 1/2" | 2.16" | 40 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | Not Rated | 0000000 | 00000 |
| 2" | 2.95" | 50 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | Not Rated | 0000000 | 00000 |
Rings with Stainless Steel Screen | ||||||||
| 3/4" | 1.18" | 16 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | Not Rated | 00000000 | 00000 |
| 1" | 1.57" | 25 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | Not Rated | 00000000 | 00000 |
| 1 1/2" | 2.16" | 40 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | Not Rated | 00000000 | 00000 |
| 2" | 2.95" | 50 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | Not Rated | 00000000 | 00000 |
Rings with Aluminum Outer Ring | ||||||||
| 3/4" | 1.18" | 16 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | Not Rated | 00000000 | 00000 |
| 1" | 1.57" | 25 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | 100 psi @ 72° F | 0000000 | 00000 |
| 1 1/2" | 2.16" | 40 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | 75 psi @ 72° F | 0000000 | 00000 |
| 2" | 2.95" | 50 | 10 -7 torr @ 72° F | 0° to 300° | 5/16" | 50 psi @ 72° F | 0000000 | 00000 |