Material Material |
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Claw Connection Type Claw Connection Type |
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| Twist Claw |
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| Double Grip Lock |
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| Grip Lock |
Maximum Vacuum Maximum Vacuum |
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Maximum Pressure Maximum Pressure |
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Gasket Material Gasket Material |
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Compatible With Compatible With |
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Length Length |
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Attachment Type Attachment Type |
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 |  |
| Band-and- Buckle Clamp | Crimp-On Hose Ferrule |
Finish Finish |
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Specifications Met Specifications Met |
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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.
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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. 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.
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
| Pipe Size | Thread Type | Includes | Each | |
Iron | ||||
|---|---|---|---|---|
| 1/4 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/8 | NPT | Safety Clip with Lanyard | 0000000 | 0000 |
| 1/2 | NPT | Safety Clip with Lanyard | 0000000 | 0000 |
| 3/4 | NPT | Safety Clip with Lanyard | 0000000 | 0000 |
| 1 | NPT | Safety Clip with Lanyard | 0000000 | 0000 |
Brass | ||||
| 1/4 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/8 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 1/2 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/4 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 1 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
316 Stainless Steel | ||||
| 3/8 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 1/2 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/4 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 1 | NPT | 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 | Thread Type | Includes | Each | |
Iron | ||||
|---|---|---|---|---|
| 1/4 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/8 | NPT | Safety Clip with Lanyard | 0000000 | 0000 |
| 1/2 | NPT | Safety Clip with Lanyard | 0000000 | 0000 |
| 3/4 | NPT | Safety Clip with Lanyard | 0000000 | 0000 |
| 1 | NPT | Safety Clip with Lanyard | 0000000 | 0000 |
Brass | ||||
| 1/4 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/8 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 1/2 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/4 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 1 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
316 Stainless Steel | ||||
| 3/8 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 1/2 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 3/4 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
| 1 | NPT | Safety Clip with Lanyard | 0000000 | 00000 |
Spring-Lock Twist-Claw Hose
Couplings for Air and Water
Prevent accidental disconnection with these couplings—they come with a safety clip and lanyard, and 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.
Warning: There is no valve in these couplings. Stop the flow of air and water before you disconnect the line.
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: 29 in. of Hg @ 72° F
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: 29 in. of Hg @ 72° F
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
Large Twist-Claw Hose Couplings for Air and Water
Also known as universal couplings, these have an identical claw-style head that allows you to connect to any other large twist-claw hose coupling, regardless of the pipe size. To connect, push two couplings together with a quarter twist. Couplings include a safety clip to prevent accidental disconnection. They are made of iron, which is strong and durable, and have a black painted finish for fair corrosion resistance. Use in noncorrosive environments.
Warning: There is no valve in these couplings. Stop the flow of air and water before you disconnect the line.
Extra-Large Twist-Claw Hose Couplings for Air and Water
Also known as 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 to prevent accidental disconnection. They are made of iron, which is strong and durable, and have a black painted finish for fair corrosion resistance. Use in noncorrosive environments.
Warning: There is no valve in these couplings. Stop the flow of air and water before you disconnect the line.
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.
Sockets have a spring-loaded locking sleeve that automatically locks into place when you connect the coupling. To disconnect, slide the locking sleeve back and twist the coupling apart.
Sockets with a barbed end insert into rubber hose and secure with a clamp or a crimp-on hose ferrule.
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.
- 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
- 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
- Maximum Pressure: 300 psi @ 72° F
- Maximum Vacuum: 22 in. of Hg @ 72° F
- Temperature Range: -40° to 250° F
- Attachment Type: Use Band-and-Buckle Clamps or Crimp-On Hose Ferrules
- Compatible With: Dixon Dual Lock Couplings
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.
Plugs have a spring-loaded locking sleeve to prevent accidental disconnection. The sleeve automatically locks into place when you connect the coupling. To disconnect, slide the locking sleeve back and twist the coupling apart.
Zinc-plated steel plugs and sockets are stronger and more durable than other metal plugs and sockets. They have fair corrosion resistance, so they should be used primarily in dry environments. Brass plugs and sockets are softer than other metal plugs and sockets, so they’re easier to thread together. They have good corrosion resistance. 303 stainless steel plugs and sockets have very good corrosion resistance. They’re the best choice for high-humidity environments.
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.
- Maximum Pressure: 300 psi @ 72° F
- Maximum Vacuum: See table
- Temperature Range: See table
- Specifications Met: MIL-A-A-50431A, MIL-C-3486B
- Compatible With: Dixon Dix Lock Couplings, Perfecting N Couplings
| Pipe Size | Thread Type | Max. Vacuum | Temperature Range, °F | Each | |
Zinc-Plated Steel | |||||
|---|---|---|---|---|---|
| 3/8 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 000000 |
| 1/2 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 00000 |
| 3/4 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 00000 |
Brass | |||||
| 3/8 | NPTF | Not Rated | -20° to 175° | 0000000 | 00000 |
| 1/2 | NPTF | Not Rated | -20° to 175° | 0000000 | 00000 |
| 3/4 | NPTF | Not Rated | -20° to 175° | 0000000 | 00000 |
303 Stainless Steel | |||||
| 3/4 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 00000 |
- Maximum Pressure: 300 psi @ 72° F
- Maximum Vacuum: See table
- Temperature Range: See table
- Specifications Met: MIL-A-A-50431A, MIL-C-3486B
- Compatible With: Dixon Dix Lock Couplings, Perfecting N Couplings
| Pipe Size | Thread Type | Max. Vacuum | Temperature Range, °F | Each | |
Zinc-Plated Steel | |||||
|---|---|---|---|---|---|
| 3/8 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 000000 |
| 1/2 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 00000 |
| 3/4 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 00000 |
Brass | |||||
| 3/8 | NPTF | Not Rated | -20° to 175° | 0000000 | 00000 |
| 1/2 | NPTF | Not Rated | -20° to 175° | 0000000 | 00000 |
| 3/4 | NPTF | Not Rated | -20° to 175° | 0000000 | 00000 |
303 Stainless Steel | |||||
| 3/4 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 00000 |
- Maximum Pressure: 300 psi @ 72° F
- Maximum Vacuum: See table
- Temperature Range: See table
- Specifications Met: MIL-A-A-50431A, MIL-C-3486B
- Compatible With: Dixon Dix Lock Couplings, Perfecting N Couplings
| Pipe Size | Thread Type | Max. Vacuum | Temperature Range, °F | Each | |
Zinc-Plated Steel | |||||
|---|---|---|---|---|---|
| 3/8 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 000000 |
| 1/2 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 00000 |
| 3/4 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 00000 |
Brass | |||||
| 3/8 | NPTF | Not Rated | -20° to 175° | 0000000 | 00000 |
| 1/2 | NPTF | Not Rated | -20° to 175° | 0000000 | 00000 |
| 3/4 | NPTF | Not Rated | -20° to 175° | 0000000 | 00000 |
303 Stainless Steel | |||||
| 3/4 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 00000 |
| Replacement Gaskets (10/Pkg.) | 0000000 | Pkg. | 000000 |
- Maximum Pressure: 300 psi @ 72° F
- Maximum Vacuum: See table
- Temperature Range: See table
- Specifications Met: MIL-A-A-50431A, MIL-C-3486B
- Compatible With: Dixon Dix Lock Coupling, Perfecting N Coupling
| Pipe Size | Thread Type | Max. Vacuum | Temperature Range, °F | Each | |
Zinc-Plated Steel | |||||
|---|---|---|---|---|---|
| 3/8 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 000000 |
| 1/2 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 00000 |
| 3/4 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 00000 |
Brass | |||||
| 3/8 | NPTF | Not Rated | -20° to 175° | 0000000 | 00000 |
| 1/2 | NPTF | Not Rated | -20° to 175° | 0000000 | 00000 |
| 3/4 | NPTF | Not Rated | -20° to 175° | 0000000 | 00000 |
303 Stainless Steel | |||||
| 3/4 | NPTF | 22 in. of Hg @ 72° F | -40° to 250° | 0000000 | 00000 |
| Replacement Gaskets (10/Pkg.) | 0000000 | Pkg. | 000000 |