How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
More
Universal Quick-Disconnect Hose Sockets for Air
Sockets accommodate five common plug shapes: Industrial, ARO, Lincoln, Tru-Flate, and European. Use them with a plug of the same coupling size to frequently connect and disconnect your line. Sockets are push-to-connect style. To connect, push the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects. Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line.
Sockets with a push-on barbed end have sharp barbs that grip rubber push-on hose with no clamps or ferrules required. The more you pull on the fittings, the tighter the hose will grip. To ensure a proper connection, the barbed end has to be pushed in all the way, with the hose end concealed by the ring.
Sockets with a crimp-on barbed end insert into rubber hose and secure with a crimp-on hose ferrule.Brass sockets have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Temperature Range: See table
- Maximum Pressure: See table
- Temperature Range: See table
Twist-Claw Hose Couplings for Air and Water
Also known as Chicago and universal couplings, these have an identical claw-style head that allows you to connect to another Chicago twist-claw hose coupling, regardless of the pipe size or barbed hose ID. To connect, push two couplings together with a quarter twist. Couplings have a safety clip and lanyard to prevent accidental disconnection.
Couplings with a barbed end insert into rubber hose and secure with a clamp.
Wye couplings are also known as three-way hose couplings. Use them to connect one inlet to two outlets.
Iron couplings are stronger and more durable than other metal couplings. Use in noncorrosive environments. Zinc-plated steel couplings have fair corrosion resistance and should be used primarily in dry environments. Brass couplings are softer than other metal couplings, so they’re easier to thread together. They have good corrosion resistance. 316 stainless steel couplings have excellent corrosion resistance. They’re the best choice for high-humidity environments.
Warning: There is no valve in these couplings. Stop the flow of air and water before you disconnect the line.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
Pipe Size | Includes | Each | |
Zinc-Plated Iron | |||
|---|---|---|---|
| 1/4 | Safety Clip with Lanyard | 0000000 | 000000 |
| 3/8 | Safety Clip with Lanyard | 0000000 | 00000 |
| 1/2 | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/4 | Safety Clip with Lanyard | 0000000 | 00000 |
| 1 | Safety Clip with Lanyard | 0000000 | 00000 |
Brass | |||
| 1/4 | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/8 | Safety Clip with Lanyard | 0000000 | 00000 |
| 1/2 | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/4 | Safety Clip with Lanyard | 0000000 | 00000 |
| 1 | Safety Clip with Lanyard | 0000000 | 00000 |
316 Stainless Steel | |||
| 3/8 | Safety Clip with Lanyard | 0000000 | 00000 |
| 1/2 | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/4 | Safety Clip with Lanyard | 0000000 | 00000 |
| 1 | Safety Clip with Lanyard | 0000000 | 00000 |
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
| Pipe Size | Includes | Each | |
Zinc-Plated Iron | |||
|---|---|---|---|
| 3/4 | Safety Clip with Lanyard | 00000000 | 000000 |
| 1 | Safety Clip with Lanyard | 00000000 | 00000 |
Zinc-Plated Steel | |||
| 1/2 | Safety Clip with Lanyard | 00000000 | 0000 |
| 3/4 | Safety Clip with Lanyard | 00000000 | 0000 |
| 1 | Safety Clip with Lanyard | 00000000 | 0000 |
316 Stainless Steel | |||
| 1/2 | Safety Clip with Lanyard | 00000000 | 00000 |
| 3/4 | Safety Clip with Lanyard | 00000000 | 00000 |
| 1 | Safety Clip with Lanyard | 00000000 | 00000 |
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
| Pipe Size | Includes | Each | |
Zinc-Plated Iron | |||
|---|---|---|---|
| 1/4 | Safety Clip with Lanyard | 0000000 | 000000 |
| 3/8 | Safety Clip with Lanyard | 0000000 | 00000 |
| 1/2 | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/4 | Safety Clip with Lanyard | 0000000 | 00000 |
| 1 | Safety Clip with Lanyard | 0000000 | 00000 |
Brass | |||
| 1/4 | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/8 | Safety Clip with Lanyard | 0000000 | 00000 |
| 1/2 | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/4 | Safety Clip with Lanyard | 0000000 | 00000 |
| 1 | Safety Clip with Lanyard | 0000000 | 00000 |
316 Stainless Steel | |||
| 3/8 | Safety Clip with Lanyard | 0000000 | 00000 |
| 1/2 | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/4 | Safety Clip with Lanyard | 0000000 | 00000 |
| 1 | Safety Clip with Lanyard | 0000000 | 00000 |
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
| Pipe Size | Includes | Each | |
Zinc-Plated Iron | |||
|---|---|---|---|
| 1/2 | Safety Clip with Lanyard | 00000000 | 000000 |
| 3/4 | Safety Clip with Lanyard | 00000000 | 00000 |
| 1 | Safety Clip with Lanyard | 00000000 | 00000 |
Zinc-Plated Steel | |||
| 1/2 | Safety Clip with Lanyard | 00000000 | 0000 |
| 3/4 | Safety Clip with Lanyard | 00000000 | 0000 |
| 1 | Safety Clip with Lanyard | 00000000 | 0000 |
316 Stainless Steel | |||
| 1/2 | Safety Clip with Lanyard | 00000000 | 00000 |
| 3/4 | Safety Clip with Lanyard | 00000000 | 00000 |
| 1 | Safety Clip with Lanyard | 00000000 | 00000 |
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Attachment Type: Use Band-and-Buckle Clamps
- Compatible With: Dixon Air King Couplings
| For Hose ID | Includes | Each | |
Zinc-Plated Iron | |||
|---|---|---|---|
| 3/8" | Safety Clip with Lanyard | 0000000 | 000000 |
| 1/2" | Safety Clip with Lanyard | 0000000 | 0000 |
| 3/4" | Safety Clip with Lanyard | 0000000 | 0000 |
| 1" | Safety Clip with Lanyard | 0000000 | 00000 |
Brass | |||
| 3/8" | Safety Clip with Lanyard | 0000000 | 00000 |
| 1/2" | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/4" | Safety Clip with Lanyard | 0000000 | 00000 |
| 1" | Safety Clip with Lanyard | 0000000 | 00000 |
316 Stainless Steel | |||
| 3/8" | Safety Clip with Lanyard | 0000000 | 00000 |
| 1/2" | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/4" | Safety Clip with Lanyard | 0000000 | 00000 |
| 1" | Safety Clip with Lanyard | 0000000 | 00000 |
Spring-Lock Twist-Claw Hose Couplings for Air and Water
Prevent accidental disconnection with these couplings—they have a spring-loaded locking sleeve that automatically locks into place when you connect the coupling. Also known as Chicago and universal couplings, they have an identical claw-style head that allows you to connect to any other spring-lock twist-claw hose coupling. To connect, push two couplings together with a quarter twist. To disconnect, slide the locking sleeves back and twist the couplings apart. Couplings are iron, which is strong and durable. Use in noncorrosive environments.
Couplings with a barbed end insert into rubber hose and secure with a clamp.
Warning: There is no valve in these couplings. Stop the flow of air and water before you disconnect the line.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: 29 in. of Hg @ 72° F
- Temperature Range: -20° to 160° F
- Attachment Type: Use Band-and-Buckle Clamps
- Compatible With: Dixon Air King Couplings
Extra-Large Twist-Claw Hose Couplings for Air and Water
Also known as Chicago and universal couplings, these have an identical claw-style head that allows you to connect to any other extra-large twist-claw hose coupling. To connect, push two couplings together with a quarter twist. Couplings include a safety clip and lanyard to prevent accidental disconnection. They are made of iron, which is strong and durable. Use in noncorrosive environments.
Warning: There is no valve in these couplings. Stop the flow of air and water before you disconnect the line.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
Large Twist-Claw Hose Couplings for Air and Water
Also known as Chicago and universal couplings, these have identical claw-style heads and connect by being pushed together with a quarter twist. Couplings include a safety clip and lanyard to prevent accidental disconnection. They are made of iron, which is strong and durable. Use in noncorrosive environments.
Warning: There is no valve in these couplings. Stop the flow of air and water before you disconnect the line.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings