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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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Barbed Hose Fittings for Compressed Gas
Commonly used in low-pressure welding applications, these fittings connect downstream of your tank and pressure regulator. Slide the barbed end into rubber hose and secure with a crimp-on hose ferrule. Fittings are brass for good corrosion resistance.
Adapters let you adapt to a threaded end so you can connect welding hose to torches or pressure regulators. They consist of a barbed shaft with a rounded end that sits inside a threaded CGA nut (sold separately) so you can make a threaded hose connection. Adapters with a spiral barbed end twist into hose for an easier installation than adapters with a standard barb.
Connectors are also known as hose menders and splicers. Use them to connect lengths of hose or to repair damaged hose.
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Attachment Type: Use Crimp-On Hose Ferrules
Adapters | Nuts with Right-Hand Threads | Nuts with Left-Hand Threads | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Hose ID | For CGA Number | Trade Size | For Use With | Each | CGA Number | Each | CGA Number | Each | |||
Brass | |||||||||||
| 1/8" | 032, 033 | B | Air, Argon, Helium, Krypton, Neon, Nitrogen, Water, Xenon | 0000000 | 00000 | 032 | 0000000 | 00000 | 033 | 0000000 | 00000 |
| 3/16" | 020, 021 | A | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 000 | 020 | 0000000 | 000 | __ | 000000 | 00 |
| 3/16" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 000 | 022 | 000000 | 000 | 023 | 000000 | 000 |
| 3/16" | 032, 033 | B | Air, Argon, Helium, Krypton, Neon, Nitrogen, Water, Xenon | 0000000 | 0000 | 032 | 0000000 | 0000 | 033 | 0000000 | 0000 |
| 1/4" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 000 | 022 | 000000 | 000 | 023 | 000000 | 000 |
| 1/4" | 032, 033 | B | Air, Argon, Helium, Krypton, Neon, Nitrogen, Water, Xenon | 0000000 | 0000 | 032 | 0000000 | 0000 | 033 | 0000000 | 0000 |
| 5/16" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 000 | 022 | 000000 | 000 | 023 | 000000 | 000 |
| 3/8" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 0000 | 022 | 000000 | 000 | 023 | 000000 | 000 |
| 3/8" | 032, 033 | B | Air, Argon, Helium, Krypton, Neon, Nitrogen, Water, Xenon | 0000000 | 0000 | 032 | 0000000 | 0000 | 033 | 0000000 | 0000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Attachment Type: Use Crimp-On Hose Ferrules
Adapters | Nuts with Right-Hand Threads | Nuts with Left-Hand Threads | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Hose ID | For CGA Number | Trade Size | For Use With | Each | CGA Number | Each | CGA Number | Each | |||
Brass | |||||||||||
| 3/16" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 0000000 | 00000 | 022 | 000000 | 00000 | 023 | 000000 | 00000 |
| 1/4" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 0000000 | 0000 | 022 | 000000 | 000 | 023 | 000000 | 000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Attachment Type: Use Crimp-On Hose Ferrules
Hose Crimping Tool and Fitting Sets for Compressed Gas
Sets contain a crimping tool and a variety of fittings, nuts, and ferrules so you can connect pressure regulators, torches, and other components of your welding system. Fittings are also known as CGA (Compressed Gas Association) fittings. They are brass for good corrosion resistance.
Barbed adapters let you adapt to a threaded end so you can connect welding hose to pressure regulators or torches. They consist of a barbed shaft with a rounded end that sits inside a threaded nut so you can make a threaded hose connection.
Barbed connectors are also known as hose menders and splicers. Use them to connect lengths of hose or to repair damaged hose. Slide the barbed end into welding hose and use a hose ferrule and the crimping tool to secure the fitting to hose.
Threaded connectors let you attach threaded welding hose to pressure regulators and torches.
Fittings with left-hand threads are identified with a notch in the nut.
Note: Fittings have a CGA number that corresponds to a specific type of gas. Choose a fitting with the same CGA number as your tank and other system components.
| For Hose ID | No. of Pieces | Includes | Max. Pressure | For Use With | Each | |
Brass | ||||||
|---|---|---|---|---|---|---|
| 3/16", 1/4" | 93 | Crimping Tool Eight barbed hose adapters for 3/16" hose ID (use with A-size nuts) Six barbed hose adapters for 3/16" hose ID (use with B-size nuts) Ten barbed hose adapters for 1/4" hose ID (use with B-size nuts) Two barbed hose connectors for 3/16" hose ID Four barbed hose connectors for 1/4" hose ID One A-size 3/8"-24 male right-hand threaded connector (CGA-020) One A-size 3/8"-24 male left-hand threaded connector (CGA-021) One B-size 9/16"-18 male right-hand threaded connector (CGA-022) One B-size 9/16"-18 male left-hand threaded connector (CGA-023) Four A-size 3/8"-24 right-hand threaded nuts (CGA-020) Four A-size 3/8"-24 left-hand threaded nuts (CGA-021) Eight B-size 9/16"-18 female right-hand threaded nuts (CGA-022) Eight B-size 9/16"-18 female left-hand threaded nuts (CGA-023) Twelve ferrules with 0.45" hose end ID Ten ferrules with 0.562" hose end ID Twelve ferrules with 0.593" hose end ID | 200 psi @ 72° F | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 0000000 | 000000 |
| 5/16", 3/8" | 71 | Crimping Tool Eight barbed hose adapters for 5/16" hose ID (use with B-size nuts) Eight barbed hose adapters for 3/8" hose ID (use with B-size nuts) Two barbed hose connectors for 5/16" hose ID Two barbed hose connectors for 3/8" hose ID One B-size 9/16"-18 male right-hand threaded connector (CGA-022) One B-size 9/16"-18 male left-hand threaded connector (CGA-023) Eight B-size 9/16"-18 female right-hand threaded nuts (CGA-022) Eight B-size 9/16"-18 female left-hand threaded nuts (CGA-023) Eight ferrules with 0.625" hose end ID Eight ferrules with 0.656" hose end ID Six ferrules with 0.687" hose end ID Eight ferrules with 0.718" hose end ID | 200 psi @ 72° F | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 0000000 | 000000 |