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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Natural and LP Gas Hose for Gas Appliances
with Male and Female Threaded Fittings
- Temperature Range: -40° to 150° F
- Material: 304 Stainless Steel with Polyester Cover
- Color: Yellow
- Both Fittings Swivel Until Tightened
Special appliance fittings on this hose let you connect dryers and ranges to your gas supply. This heavy duty hose is flexible enough for routing through walls and ceilings. The fittings swivel until tightened for easy installation.
Natural and LP Gas Hose for Gas Appliances with Male Threaded Fittings
- Temperature Range: -40° to 150° F
- Material: 304 Stainless Steel with Polyester Cover
- Color: Yellow
- Both Fittings Swivel Until Tightened
Special appliance fittings on this hose let you connect dryers and ranges to your gas supply. This heavy duty hose is flexible enough for routing through walls and ceilings. The fittings swivel until tightened for easy installation.
| Pipe Size | ID | OD | Bend Radius | Max. Pressure | 1 ft. | 2 ft. | 3 ft. | 4 ft. | 5 ft. | 6 ft. | |
Zinc-Plated Steel Threaded NPT Male × Zinc-Plated Steel Threaded NPT Male | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 × 1/2 | 3/8" | 1/2" | 6 1/2" | 0.5 psi @ 72º F | 0000000 | ||||||
| 1/2 × 1/2 | 1/2" | 5/8" | 6 1/2" | 0.5 psi @ 72º F | 0000000 | ||||||
| 3/4 × 1/2 | 1/2" | 5/8" | 6 1/2" | 0.5 psi @ 72º F | 0000000 | ||||||
| 3/4 × 3/4 | 3/4" | 1" | 1 1/2" | 0.5 psi @ 72º F | 0000000 | ||||||
Natural and LP Gas Hose
- Temperature Range: -40° to 200° F
- Material: 304 Stainless Steel with Polyethylene Cover
- Color: Yellow
Run gas through this heavy duty hose that's flexible enough for routing through walls and ceilings. Hose is not for use underground or with moveable appliances such as dryers and ranges.
LP Gas Hose with Male Threaded Fittings
- Temperature Range: -40° to 140° F
- Material: Buna-N Rubber with Neoprene Rubber Cover
- Color: Black
Also known as propane hose, this hose is for outdoor use only. It should not be used underground. Hose is CSA Certified to meet Canadian safety standards. It also meets American safety standards as a UL Recognized Component for use with liquefied-petroleum gas.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | ID | OD | Bend Radius | Specifications Met | 5 ft. | 10 ft. | 15 ft. | 25 ft. | |
Brass Threaded NPT Male × Brass Threaded NPT Male | |||||||||
|---|---|---|---|---|---|---|---|---|---|
350 psi @ 72° F Max. Pressure | |||||||||
| 1/4 × 1/4 | 1/4" | 5/8" | 2 1/2" | CSA Certified, UL Recognized Component | 00000000 | ||||
| 3/8 × 3/8 | 3/8" | 13/16" | 3 1/2" | CSA Certified, UL Recognized Component | 00000000 | ||||
Steel Threaded NPT Male × Steel Threaded NPT Male | |||||||||
350 psi @ 72° F Max. Pressure | |||||||||
| 1/2 × 1/2 | 1/2" | 15/16" | 4 1/2" | CSA Certified, UL Recognized Component | 00000000 | ||||
| 3/4 × 3/4 | 3/4" | 1 1/4" | 6 1/2" | CSA Certified, UL Recognized Component | 00000000 | ||||
| 1 × 1 | 1" | 1 1/2" | 7 1/2" | CSA Certified, UL Recognized Component | 00000000 | ||||
LP Gas Hose with Female Threaded Fittings
- Material: Plastic with Plastic Cover
- Color: Black
Change the fuel source for your propane torch from a fuel cylinder to a propane tank. This hose is often used for extended-use applications, or when a propane tank can’t be moved.
You’ll need two different adapters: one to connect the hose to your torch, and one to connect to the propane tank.
For technical drawings and 3-D models, click on a part number.
Threaded Hose Fittings for Compressed Gas
Use these fittings to connect welding hose to pressure regulators and torches. They are also known as CGA (Compressed Gas Association) fittings. Fittings are brass for good corrosion resistance.
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 technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
Female Hose Connection | Female Pipe Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CGA Number  | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | Pipe Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 1/4 | NPT | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000 | 000000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
Female Hose Connection | Male Hose Connection | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||||
| 021 | A | 3/8"-24 | UN/UNF (CGA) | Left Hand | 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 000000 |
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 021 | A | 3/8"-24 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 00000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
Female Hose Connection | Male Pipe Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | Pipe Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 1/4 | NPT | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 000000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
Female Pipe Connection | Male Hose Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Thread Direction | CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||
| 1/4 | NPT | Right Hand | 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 000000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
Male Hose Connection | Male Pipe Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | Pipe Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||
| 021 | A | 3/8"-24 | UN/UNF (CGA) | Left Hand | 1/4 | NPT | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000000 | 00000 |
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 1/8 | NPT | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000000 | 0000 |
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 1/4 | NPT | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 0000 |
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 3/8 | NPT | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000000 | 0000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
| CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | Chain Lg. | For Use With | Each | |
Brass | ||||||||
|---|---|---|---|---|---|---|---|---|
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | 6" | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 00000 |
Nuts for Barbed Hose Fittings for Compressed Gas
Also known as CGA (Compressed Gas Association) nuts, these are designed for low-pressure welding applications downstream of your tank and pressure regulator. Slide a barbed hose adapter for compressed gas into a male or female nut to make a threaded connection to torches or pressure regulators.
Nuts with left-hand threads are identified with a notch.
Brass nuts have good corrosion resistance. Note: Nuts have a CGA number that corresponds to a specific type of gas. Choose a nut with the same CGA number as your tank and other system components.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
| CGA Number | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | |||||||
|---|---|---|---|---|---|---|---|
| 020 | A | 3/8"-24 | UN/UNF (CGA) | Right Hand | Oxygen | 0000000 | 00000 |
| 021 | A | 3/8"-24 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000000 | 000 |
| 022 | B | 9/16"-18 | UN/UNF (CGA) | Right Hand | Oxygen | 000000 | 000 |
| 023 | B | 9/16"-18 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000 | 000 |
| 025 | C | 7/8"-14 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000000 | 0000 |
| 027 | D | 1 1/4"-12 | UN/UNF (CGA) | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 000000000 | 00000 |
Threaded Hose-to-Propane-Tank Adapters for Compressed Gas
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
These adapters have a male threaded end that connects to a propane tank and a male threaded end that connects to a hose. Fittings are also known as CGA (Compressed Gas Association) fittings. They are brass for good corrosion resistance. Fittings have left-hand threads that 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.
CGA Number | Hose Connection | Tank Connection | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Hose | Tank | Thread Size | Thread Type | Thread Direction | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||
| 023 | 510 | 9/16"-18 | UN/UNF (CGA) | Left Hand | 0.880"-14 | NGO | Left Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 000000 |
Threaded Hose-to-Propane-Torch Adapters for Compressed Gas
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
These adapters allow you to connect a hose to a propane torch. Fittings are also known as CGA (Compressed Gas Association) fittings. They are brass for good corrosion resistance. Fittings have left-hand threads that 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.
CGA Number | Hose Connection | Torch Connection | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Hose | Torch | Thread Size | Thread Type | Thread Direction | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
Brass | ||||||||||
| 023 | 600 | 9/16"-18 | UN/UNF (CGA) | Left Hand | 1"-20 | UN/UNF (CGA) | Right Hand | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Propane | 0000000 | 000000 |
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.
For technical drawings and 3-D models, click on a part number.
- 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 | Gas Fitting Size | For Use With | Each | CGA Number | Each | CGA Number | Each | |||
Brass | |||||||||||
| 3/16" | 020, 021 | A | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 00000 | 020 | 0000000 | 00000 | 021 | 000000000 | 00000 |
| 3/16" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 000 | 022 | 000000 | 000 | 023 | 000000 | 000 |
| 1/4" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 000 | 022 | 000000 | 000 | 023 | 000000 | 000 |
| 5/16" | 022, 023 | B | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 0000 | 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 |
- 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 | Gas Fitting 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
Quick-Disconnect Hose Couplings for Compressed Gas
Use these couplings to quickly link and unlink welding hoses, torches, and pressure regulators. They consist of a plug and socket that are sold together as a set of two—you’ll get one right-hand connection for oxygen and one left-hand connection for fuel gas. The connections are noninterchangeable and color coded so you can’t mix lines. The male threaded ends attach to threaded welding hose, and the female threaded ends attach to a torch or pressure regulator. To connect couplings, push the plug into the socket; the sleeve on the socket has a spring-loaded lock for gas-tight connections. To disconnect, pull back on the socket sleeve and twist to release the plug. The sockets have a shut-off valve that stops the flow when the coupling is separated so gas won’t leak from the line. The sockets also have a built-in check valve to prevent gas backflow. Couplings are also known as CGA (Compressed Gas Association) couplings. They are brass for good corrosion resistance.
Couplings with left-hand threads are identified with a notch in the nut.
Note: Couplings have a CGA number that corresponds to a specific type of gas. Make sure the CGA number of the coupling matches the CGA number of your tank and other system components.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Specifications Met: OSHA 29 CFR 1915.55, OSHA 29 CFR 1917.152, OSHA 29 CFR 1926.350, UL Listed
| Includes | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
| One CGA 022 Coupling Adapter (Male Hose Plug × Female Torch Socket) One CGA 023 Coupling Adapter (Male Hose Plug × Female Torch Socket) | B | 9/16"-18 | UN/UNF (CGA) | Right Hand (CGA 022), Left Hand (CGA 023) | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 0000000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Specifications Met: OSHA 29 CFR 1915.55, OSHA 29 CFR 1917.152, OSHA 29 CFR 1926.350, UL Listed
| Includes | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
| One CGA 022 Coupling Adapter (Male Hose Plug × Female Regulator Socket) One CGA 023 Coupling Adapter (Male Hose Plug × Female Regulator Socket) | B | 9/16"-18 | UN/UNF (CGA) | Right Hand (CGA 022), Left Hand (CGA 023) | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 0000000 |
- Maximum Pressure: 200 psi @ 72° F
- Maximum Temperature: 120° F
- Specifications Met: OSHA 29 CFR 1915.55, OSHA 29 CFR 1917.152, OSHA 29 CFR 1926.350, UL Listed
| Includes | Gas Fitting Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
| One CGA 022 Coupling Adapter (Male Hose Plug × Male Hose Socket) One CGA 023 Coupling Adapter (Male Hose Plug × Male Hose Socket) | B | 9/16"-18 | UN/UNF (CGA) | Right Hand (CGA 022), Left Hand (CGA 023) | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 0000000 |
Nuts for High-Pressure Nipples for Compressed Gas
Slide a high-pressure hose nipple for compressed gas into one of these nuts to connect a pipe to the inlet of a pressure regulator. They are also known as CGA (Compressed Gas Association) nuts and inlet nuts.
Brass nuts have good corrosion resistance and are softer than 316 stainless steel nuts, so they're easier to thread together.
Nuts with left-hand threads are identified with a notch.
Note: Nuts have a CGA, BS, or DIN number that corresponds to a specific type of gas. Choose a nut with the same number as your tank and other system components.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Maximum Temperature: 120° F, except DIN 477 No. 9: 250° F
| Number | Thread Size | Thread Type | Thread Direction | Max. Pressure | For Use With | Each | |
Brass | |||||||
|---|---|---|---|---|---|---|---|
| CGA 555 | 0.908"-14 | NGO | Left Hand | 3,000 psi @ 72° F | Butane, LP Gas | 000000000 | 00000 |
High-Pressure Nipples for Compressed Gas
Commonly used in high-pressure welding applications, these nipples connect your tank to the inlet of a pressure regulator. One side has a threaded pipe end and the other side has a rounded end that sits inside a threaded nut (sold separately) so you can make a threaded connection.
Brass nipples have good corrosion resistance and are softer than 316 stainless steel nipples, so they're easier to thread together.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Maximum Temperature: 120° F
Regulator Connection | ||||||
|---|---|---|---|---|---|---|
| For Number (Max. Pressure) | Pipe Size | Thread Type | Lg. | For Use With | Each | |
Brass—Tighten With Wrench | ||||||
| CGA 555 (3,000 psi @ 72° F) | 1/4 | NPT | 2 1/16" | Butane, LP Gas | 000000000 | 00000 |
- Maximum Pressure: See table
- Maximum Temperature: 120° F
| Number | Gender | Thread Size | Thread Type | Thread Direction | Max. Pressure | For Use With | Each | |
Brass | ||||||||
|---|---|---|---|---|---|---|---|---|
| CGA 555 | Female | 0.908"-14 | NGO | Left Hand | 3,000 psi @ 72° F | Butane, LP Gas | 000000000 | 00000 |
High-Pressure Threaded Fittings for Compressed Gas
Designed to handle high-pressure welding applications, these fittings are commonly used to connect pressure regulators to compressed gas tanks or cylinders. Fittings are also known as CGA (Compressed Gas Association) fittings. They are brass for good corrosion resistance.
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 technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Maximum Temperature: 120° F
CGA Number | Tank Connection | Regulator Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tank | Regulator | Thread Size | Thread Type | Thread Direction | Thread Size | Thread Type | Thread Direction | Max. Pressure | For Use With | Each | |
Brass | |||||||||||
| 555 | 510 | 0.908"-14 | NGO | Left Hand | 0.880"-14 | NGO | Left Hand | 500 psi @ 72° F | Acetylene, Butane, Cyclopropane, Dimethyl Ether, Ethylene Oxide, Isobutane, LP Gas, Methane, Methyl Chloride, Natural Gas, Propane, Propylene, Vinyl Bromide, Vinyl Chloride | 0000000 | 000000 |
| 555 | 580 | 0.908"-14 | NGO | Left Hand | 0.960"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Argon, Butane, Helium, Krypton, LP Gas, Neon, Nitrogen, Xenon | 0000000 | 00000 |
- Maximum Pressure: See table
- Maximum Temperature: 120° F
CGA Number | Tank Connection | Regulator Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tank | Regulator | Thread Size | Thread Type | Thread Direction | Thread Size | Thread Type | Thread Direction | Max. Pressure | For Use With | Each | |
Brass | |||||||||||
| 580 | 555 | 0.960"-14 | NGO | Right Hand | 0.908"-14 | NGO | Left Hand | 3,000 psi @ 72° F | Argon, Butane, Helium, Krypton, LP Gas, Neon, Nitrogen, Xenon | 0000000 | 000000 |
Quick-Disconnect Hose Couplings for Natural and LP Gas
 |  3/8 Coupling Size |  1/2 Coupling Size |  3/4 Coupling Size |
 1 Coupling Size |  1 1/4 Coupling Size |
Use these couplings when you need frequent access to a gas line. A complete coupling consists of a plug and a socket (sold separately or in a set) that connect and disconnect quickly. All of the natural and LP gas plugs are compatible with any of the natural and LP gas sockets of the same coupling size, regardless of the pipe size. Plugs and sockets are brass for good corrosion resistance. These couplings are rated ANSI Z21.41/CSA 6.9 for use with gas fuel appliances. CSA-US and CSA Certified, they also meet U.S. and Canadian safety standards.
Plugs are also known as nipples. They have a heat-sensitive fuse that will stop gas flow in the event of a fire.
Sockets have a shut-off valve that stops the flow when the coupling is separated, so gas won’t leak from the line. They are sleeve-lock style. To connect, slide back the sleeve on the socket, insert the plug, and release the sleeve. To disconnect, slide back the sleeve and pull out the plug.
NPTF (Dryseal) threads are compatible with NPT threads.
When couplings are not connected, add dust caps and plugs to keep contaminants out of your gas line.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
Warning: Stop the flow before you disconnect the line.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 0.5 psi @ 72° F
- Temperature Range: -40° to 200° F
- Specifications Met: ANSI Z21.41/CSA 6.9, CSA Certified, CSA-US Certified
- Maximum Pressure: 0.5 psi @ 72° F
- Temperature Range: -40° to 200° F
- Specifications Met: ANSI Z21.41/CSA 6.9, CSA Certified, CSA-US Certified
- Maximum Pressure: 0.5 psi @ 72° F
- Temperature Range: -40° to 200° F
- Specifications Met: ANSI Z21.41/CSA 6.9, CSA Certified, CSA-US Certified
Dust Caps and Plugs for Quick-Disconnect
Hose Couplings for Natural and LP Gas
To keep contaminants out of your gas line, add these dust caps and plugs to natural and LP gas couplings when they’re not connected. All work with couplings that are rated ANSI Z21.41/CSA 6.9 for use with gas fuel appliances.
For technical drawings and 3-D models, click on a part number.
Minimal-Spill Push-and-Turn Hose Couplings for Natural and LP Gas
Often used for loading and unloading gas tankers, these couplings are tough enough to handle frequent connections and designed to be virtually spill-free. The socket has a rubber lip and large handles that protect it if it’s dropped. To connect, simply push the plug into the socket and twist 90°. Also known as dry disconnects and double-shut off couplings, both the plug and the socket have a shut-off valve that holds your line when they’re separated. A close fit between the plug and socket means there's little room for gas to leak when you disconnect them. This further reduces the risk of leaks and burns from contact with extremely cold gases such as liquified petroleum (LP). The socket swivels, so you won’t have to twist your hose to attach the plug. Made of stainless steel, these couplings resist corrosion from harsh chemicals and salt water.
A complete coupling consists of a plug and a socket (both sold separately).
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 360 psi @ 72° F
- Temperature Range: -40° to 400° F
- Compatible With Manufacturer: MannTek
Copper Tubing with Coated Exterior for Natural and LP Gas
- Temperature Range: -90° to 210° F
- Bending Method: Tube Bender
- Compatible Tube Fittings: Flared
Copper offers good corrosion resistance, and the polyethylene coating provides an additional protective layer. Tubing has markings to identify it as a gas line. It is seamless, which provides a smooth interior for unrestricted flow. It can be flared without splitting. The tube OD dimension does not include the coating; you must remove the coating to attach fittings.
For technical drawings and 3-D models, click on a part number.
| OD | Wall Thick. | ID | Max. Pressure | Form | Temper Rating | Color | 60 ft. | 100 ft. | |
| 3/8" | 0.03" | 0.315" | 910 psi @ 72° F | Coil | Soft | Yellow | 0000000 | ||
| 1/2" | 0.035" | 0.43" | 770 psi @ 72° F | Coil | Soft | Yellow | 0000000 | ||
| 5/8" | 0.04" | 0.545" | 720 psi @ 72° F | Coil | Soft | Yellow | 0000000 | ||
| 3/4" | 0.042" | 0.666" | 630 psi @ 72° F | Coil | Soft | Yellow | 0000000 | ||
| 7/8" | 0.045" | 0.785" | 580 psi @ 72° F | Coil | Soft | Yellow | 0000000 |