How to Identify and Measure Fittings
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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.
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. 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 | |||
|---|---|---|---|
| 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 | |||
|---|---|---|---|
| 1/2 | 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 |
Grip-Lock Hose Couplings for Air
Also known as Bowes couplings, these consist of a plug and a socket (both sold separately) that connect with a quarter twist. They can handle higher-pressures than twist-claw couplings, and have a lower profile to fit in cramped spaces. All of the grip-lock plugs are compatible with any of the grip-lock sockets, regardless of the pipe size or barbed hose ID.
NPTF (Dryseal) threads are compatible with NPT threads.
Warning: There is no valve in these couplings. Stop the flow of air before you disconnect the line.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 300 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: See table
- Specifications Met: MIL-A-A-50431, MIL-C-3486
- Compatible With: Dixon Dix Lock Couplings, Perfecting N Couplings
| Pipe Size | Thread Type | Temperature Range, °F | Each | |
Zinc-Plated Steel | ||||
|---|---|---|---|---|
| 3/8 | NPTF | -40° to 250° | 0000000 | 000000 |
| 1/2 | NPTF | -40° to 250° | 0000000 | 00000 |
| 3/4 | NPTF | -40° to 250° | 0000000 | 00000 |
Brass | ||||
| 3/8 | NPT | -20° to 175° | 0000000 | 00000 |
| 1/2 | NPT | -20° to 175° | 0000000 | 00000 |
| 3/4 | NPT | -20° to 175° | 0000000 | 00000 |
303 Stainless Steel | ||||
| 3/4 | NPTF | -40° to 250° | 0000000 | 00000 |
| Replacement Gaskets (10/Pkg.) | 0000000 | Pkg. | 000000 |
- Maximum Pressure: 300 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: See table
- Specifications Met: MIL-A-A-50431, MIL-C-3486
- Compatible With: Dixon Dix Lock Coupling, Perfecting N Coupling
| Pipe Size | Thread Type | Temperature Range, °F | Each | |
Zinc-Plated Steel | ||||
|---|---|---|---|---|
| 3/8 | NPTF | -40° to 250° | 0000000 | 000000 |
| 1/2 | NPTF | -40° to 250° | 0000000 | 00000 |
| 3/4 | NPTF | -40° to 250° | 0000000 | 00000 |
Brass | ||||
| 3/8 | NPTF | -20° to 175° | 0000000 | 00000 |
| 1/2 | NPTF | -20° to 175° | 0000000 | 00000 |
| 3/4 | NPTF | -20° to 175° | 0000000 | 00000 |
303 Stainless Steel | ||||
| 3/4 | NPTF | -40° to 250° | 0000000 | 00000 |
| Replacement Gaskets (10/Pkg.) | 0000000 | Pkg. | 000000 |
- Maximum Pressure: 300 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: See table
- Attachment Type: Use Band-and-Buckle Clamps
- Specifications Met: MIL-A-A-50431, MIL-C-3486
- Compatible With: Dixon Dix Lock Couplings, Perfecting N Couplings
Double Grip-Lock Hose Couplings for Air and Water
Also known as Thor couplings, these have two locking points to give you twice the gripping power of standard grip-lock couplings. To connect, push a plug and a socket (both sold separately) together with a quarter twist. Attach an optional locking ring (sold separately) to the socket for extra protection against accidental disconnection. All of the double grip-lock plugs are compatible with any of the double grip-lock sockets, regardless of the pipe size or barbed hose ID. Plugs and sockets are zinc-plated steel, which is strong and durable. They have fair corrosion resistance, so they should be used primarily in dry environments.
NPTF (Dryseal) threads are compatible with NPT threads.
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: 300 psi @ 72° F
- Maximum Vacuum: 22 in. of Hg @ 72° F
- Temperature Range: -40° to 250° F
- Compatible With: Dixon Dual Lock Couplings
- Maximum Pressure: 300 psi @ 72° F
- Maximum Vacuum: 22 in. of Hg @ 72° F
- Temperature Range: -40° to 250° F
- Compatible With: Dixon Dual Lock Couplings