How to Identify and Measure Fittings
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Twist-Claw Hose Couplings for Air and Water
![](/prerenderstable/mvPRE/contents/gfx/imagecache/534/5344k22p3-c01h-digital@halfx_637085707578536705.png?ver=imagenotfound)
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. 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.
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- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
![](/prerenderstable/mvPRE/contents/gfx/imagecache/534/5344k22p2-c01h-digital@halfx_637085727847153325.png?ver=imagenotfound)
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
![](/prerenderstable/mvPRE/contents/gfx/imagecache/534/5344k27p1-c01h-digital@halfx_637085813589385916.png?ver=imagenotfound)
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
![](/prerenderstable/mvPRE/contents/gfx/imagecache/534/5344k27p1-c01h-digital@halfx_637085813589385916.png?ver=imagenotfound)
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
![](/prerenderstable/mvPRE/contents/gfx/imagecache/534/5344k39p1-c01h-digital@halfx_637085779354940447.png?ver=imagenotfound)
- 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
Spring-Lock Twist-Claw Hose Couplings for Air and Water
![](/prerenderstable/mvPRE/contents/gfx/imagecache/714/7149k342p2-c01h-digital@halfx_637085900431614898.png?ver=imagenotfound)
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.
![](/prerenderstable/mvPRE/contents/gfx/imagecache/714/7149k311p1-c01d-digital@halfx_637085885731031810.png?ver=imagenotfound)
- 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
![](/prerenderstable/mvPRE/contents/gfx/imagecache/536/5368k25-@halfx_1683813796.png?ver=imagenotfound)
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.
![](/prerenderstable/mvPRE/contents/gfx/imagecache/536/5368k25_9751eaad-cd85-43b6-8d78-ef939860b4351683576971@halfx_1683576974.png?ver=imagenotfound)
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
![](/prerenderstable/mvPRE/contents/gfx/imagecache/536/5368k15_c5be50a6-ce0c-452a-b571-05d0ac7dca411683576952@halfx_1683576958.png?ver=imagenotfound)
- 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
![](/prerenderstable/mvPRE/contents/gfx/imagecache/536/5368k24-@halfx_1683813796.png?ver=imagenotfound)
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.
![](/prerenderstable/mvPRE/contents/gfx/imagecache/536/5368k24_33415288-0048-4890-ae2a-873b516195db1683576931@halfx_1683576934.png?ver=imagenotfound)
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
![](/prerenderstable/mvPRE/contents/gfx/imagecache/536/5368k14_6e448af0-9cc5-4cc9-9c7e-8a1ab5a28ced1683573990@halfx_1683573996.png?ver=imagenotfound)
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: Not Rated
- Temperature Range: -20° to 160° F
- Compatible With: Dixon Air King Couplings
Interlocking-Clamp Hose Fittings for Steam
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Also known as ground-joint couplings and boss couplings, these fittings are designed for high-pressure steam heating, humidification, and washdown applications. Insert the barbed end of the fitting into rubber hose, then position the interlocking clamp over the hose and bolt into place with a torque wrench. The clamp firmly grips the hose as it locks into the ring of the barbed end, creating a leak tight seal. The interlocking clamps are not reusable. Fittings are strong and durable with fair corrosion resistance.
Fittings with a female threaded end have a hex bushing (also known as a female spud) that connects to a male interlocking-clamp hose fitting. Replace the hex bushing with a hex nipple (sold separately) to connect two female fittings; the hex nipples are also known as double spuds.
Warning: There is no valve in these couplings. Stop the flow of steam before you disconnect the hose line.
For technical drawings and 3-D models, click on a part number.
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- Maximum Pressure: 250 psi @ 72° F
- Maximum Vacuum: 28 in. of Hg @ 72° F
- Temperature Range: -20° to 450° F
- Attachment Type: Use Interlocking Clamps (included)
- Compatible With: Dixon Boss, Dixon Ground Joint
![](/prerenderstable/mvPRE/contents/gfx/imagecache/536/5360k45c3-c01h-digital-master1572990283-p9@halfx_637085684582250231.png?ver=imagenotfound)
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- Maximum Pressure: 250 psi @ 72° F
- Maximum Vacuum: 28 in. of Hg @ 72° F
- Temperature Range: -20° to 450° F
- Attachment Type: Use Interlocking Clamps (included)
- Compatible With: Dixon Boss, Dixon Ground Joint
Adapters | Replacement Interlocking Clamps | Replacement Hex Bushings | Hex Nipples | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Hose ID | For Hose OD Range | Pipe Size | Thread Type | Clamp Material | Wing Nut Material | Hex Bushing Material | Each | Each | Each | Each | ||||
Zinc-Plated Steel | ||||||||||||||
1/2" | 1 1/16" to 1 3/16" | 1/2 | NPT | Zinc-Plated Iron | Zinc-Plated Iron | Zinc-Plated Steel | 0000000 | 000000 | 0000000 | 000000 | 0000000 | 000000 | 0000000 | 000000 |
Zinc-Plated Iron | ||||||||||||||
2" | 2 1/2" to 2 25/32" | 2 | NPT | Zinc-Plated Iron | Zinc-Plated Iron | Zinc-Plated Iron | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 | 0000000 | 00000 |
Air Hose with Twist-Claw and Threaded Fittings
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- Temperature Range: -40 to 200° F
- Material: EPDM Rubber
- Color: Black or Red
Hose is made of EPDM rubber, which is the most common material for air applications. The twist-claw fitting is also known as a universal hose coupling and is interchangeable with another regardless of hose size.
For any combination of hose length and fittings not listed in the table, please select 5138K999. Specify hose color (red or black) and length, and fitting type, material, and size on both ends.
For technical drawings and 3-D models, click on a part number.
Air Hose with Twist-Claw Fittings
![](/prerenderstable/mvPRE/contents/gfx/imagecache/530/5304k946p1-c01g-digital@halfx_637085683896205003.png?ver=imagenotfound)
- Temperature Range: -40° to 200° F
- Material: EPDM Rubber
- Color: Black or Red
Hose is made of EPDM rubber, which is the most common material for air applications. The fittings are also known as universal hose couplings and are interchangeable with each other regardless of hose size.
For any combination of hose length and fittings not listed in the table, please select 5138K999. Specify hose color (red or black) and length, and fitting type, material, and size on both ends.
For technical drawings and 3-D models, click on a part number.
Flame-Resistant High-Pressure Water Hose with Male Threaded Fittings
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- Temperature Range: -20° to 200° F
- Material: Blended Rubber
- Color: Yellow
Commonly used to control dust in mines, this hose has a cover that meets MSHA (Mine Safety and Health Administration) standards for flame resistance. The cover won't crack if exposed to ozone or tear if dragged or stepped on, so it stands up to rugged outdoor environments. This hose is reinforced with braided steel wire, so it’s strong enough to handle high-pressure water. Fittings are also known as ground-joint couplings.
For technical drawings and 3-D models, click on a part number.
Flame-Resistant High-Pressure Water Hose
with Male and Female Threaded Fittings
![](/prerenderstable/mvPRE/contents/gfx/imagecache/563/5630k321p1-c01g-digital@halfx_637118208609692111.png?ver=imagenotfound)
- Temperature Range: -20° to 200° F
- Material: Blended Rubber
- Color: Yellow
- Female Fitting Swivels Until Tightened
The cover on this hose meets MSHA (Mine Safety and Health Administration) standards for flame resistance, so it’s commonly used to control dust in mines. Good for rugged outdoor environments, the cover won’t crack if exposed to ozone or tear if dragged or stepped on. This hose is reinforced with braided steel wire, so it’s strong enough to handle high-pressure water.
The fittings are also known as ground-joint couplings. The female fitting swivels until tightened, so you can thread it without moving and twisting the entire hose.
For technical drawings and 3-D models, click on a part number.
High-Temperature Steam Hose with Male and Female Threaded Fittings
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- Temperature Range: -40° to 450° F
- Material: EPDM Rubber
- Color: Black or Red
- Female Fittings Swivel Until Tightened
Made of EPDM rubber reinforced with steel wire so it handles high temperatures, this hose is often used to clean hard-to-reach areas or supply heat and moisture to processing equipment. The fittings are also known as ground-joint couplings. Fittings that swivel until tightened are easy to install.
For technical drawings and 3-D models, click on a part number.
High-Temperature Steam Hose with Female Threaded Fittings
![](/prerenderstable/mvPRE/contents/gfx/imagecache/530/5301k1p2-c01g-digital@halfx_637085690220888924.png?ver=imagenotfound)
- Temperature Range: -40° to 450° F
- Material: EPDM Rubber
- Color: Black or Red
- Both Fittings Swivel Until Tightened
Made of EPDM rubber reinforced with steel wire so it handles high temperatures, this hose is often used to clean hard-to-reach areas or supply heat and moisture to processing equipment. The fittings are also known as ground-joint couplings. They swivel until tightened for easy installation.
For technical drawings and 3-D models, click on a part number.