About On/Off Valves
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About Hose
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Threaded On/Off Valves
Use these valves in general purpose applications, such as those with water, oil, air, and inert gas.
Bronze valves are stronger and more durable than brass valves for a longer service life. Full-port valves do not restrict flow. Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.

- Valve Type: Ball
- For Use With:
NPT: Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon
BSPP and BSPT: Air, Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon
UN/UNF: Air, Argon, Oil, Steam, Water - Seal Material: PTFE Plastic
Lever handles give you the most leverage for quickly opening and closing valves with minimal effort.
| Thread Size | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temperature Range, °F | Port Type | End-to-End Lg. | Ball Material | Each | |
UN/UNF (SAE Straight) Female × UN/UNF (SAE Straight) Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 9/16"-18 | 15 | 600 psi @ 100° F | 150 psi @ 365° F | -20° to 450° | Full | 2 1/4" | Brass | 4581K42 | 000000 |
On/Off Valves with 37° Flared Tube Fittings for Fuel

- Valve Type: Ball
- For Use With: Diesel Fuel, Fuel Oil, Gasoline
- Seal Material: PTFE Plastic
These valves have 37° flared tube fittings that form a tight seal on metal tubing lines to transfer diesel fuel, fuel oil, and gasoline. All are full port, so they do not restrict flow.
| Thread Size | For Tube OD | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
Aluminum Body | ||||||
|---|---|---|---|---|---|---|
37° Flared × 37° Flared | ||||||
| 9/16"-18 | 3/8" | 200 psi @ 70° F | -40° to 250° | 2 1/2" | 3710K31 | 0000000 |
On/Off Inline Hydraulic Valves

Start and stop flow with a quarter turn of the handle. Valves are full port, so they do not restrict flow.
UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.
Inlet/Outlet Connection | O'all | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Dash Size | Max. Flow Rate, gpm | Max. Pressure, psi | Seal Material | Lg. | Wd. | Ht. | Port-to-Port Lg. | Temp. Range, °F | Valve Type | Each | |
Zinc-Plated Steel Body with Chrome-Plated Steel Ball | ||||||||||||
| 9/16"-18 | 06 | 7.5 | 7,250 | Acetal Plastic, Fluoroelastomer Rubber | 5 15/16" | 1 1/4" | 3 7/16" | 2 7/8" | 0° to 212° | Ball | 4715K63 | 000000 |
Lockable On/Off Inline Hydraulic Valves

Lock the handle using a padlock. When unlocked, a quarter turn of the handle starts and stops flow. Valves are full port, so they do not restrict flow.
UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.
Inlet/Outlet Connection | O'all | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Dash Size | Max. Flow Rate, gpm | Max. Pressure, psi | Seal Material | Lg. | Wd. | Ht. | Port-to-Port Lg. | For Max. Padlock Shackle Dia. | Temp. Range, °F | Valve Type | Each | |
Zinc-Plated Steel Body with Chrome-Plated Steel Ball | |||||||||||||
| 9/16"-18 | 06 | 7.5 | 7,250 | Acetal Plastic, Fluoroelastomer Rubber | 5 15/16" | 2 1/16" | 3 7/16" | 2 7/8" | 5/16" | 0° to 212° | Ball | 4776K63 | 0000000 |
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.

- 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 | 7934A4 | 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 | 7934A6 | 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 | 7934A5 | 0000000 |
High-Pressure Minimal-Spill Quick-Disconnect Hose Couplings for Hydraulic Fluid

These couplings have the highest pressure rating of all the minimal-spill couplings we offer. Also known as flush-face couplings, the plugs and sockets have a flat face, which allows them to mate close against each other, reducing fluid loss when connecting and disconnecting the line. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them when you need frequent access to a line. All of the High-Pressure Minimal-Spill quick-disconnect plugs are compatible with any of the High-Pressure Minimal-Spill quick-disconnect sockets of the same coupling size, regardless of the pipe size. Couplings are compatible with Snap-Tite 71 couplings. Also known as double shut-off couplings, the plugs and sockets both have a shut-off valve that stops the flow when the coupling is separated.
Plugs are also known as nipples.
Sockets are push-to-connect style. To connect, push the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects.
Zinc-plated steel plugs and sockets have better strength and durability than 316 stainless steel plugs and sockets. They have fair corrosion resistance.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size. Pressure ratings are given for static (constant) pressure conditions.
Warning: Never attempt to connect or disconnect couplings when operating at maximum pressure. Stop the flow before you disconnect the line.


- Maximum Pressure: See table
- Temperature Range: -40° to 200° F
- Compatible With: Snap-Tite 71
Plug Tip | ||||||||
|---|---|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Thread Size | Thread Type | Dash Size | Max. Pressure | Each | |
Zinc-Plated Steel | ||||||||
| 3/8 | 7/32" | 15/16" | 9/16"-18 | UN/UNF (SAE Straight) | 06 | 10,000 psi @ 72° F | 53645K416 | 000000 |


- Maximum Pressure: See table
- Temperature Range: -40° to 200° F
- Compatible With: Snap-Tite 71
For Plug Tip | ||||||||
|---|---|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Thread Size | Thread Type | Dash Size | Max. Pressure | Each | |
Zinc-Plated Steel | ||||||||
| 3/8 | 7/32" | 15/16" | 9/16"-18 | UN/UNF (SAE Straight) | 06 | 10,000 psi @ 72° F | 53645K412 | 0000000 |
Quick-Disconnect Hose Couplings for Pressure Testing

Add quick connection points for mechanical gauges and other diagnostic equipment to your line. These couplings are also known as test ports and diagnostic couplings. To take a reading, connect a socket to your gauge using a hose assembly. Then push the socket into a plug that’s permanently threaded into a test port on your line. No threading or unthreading is necessary. Add additional plugs to your line to take measurements at different points. To quickly move the gauge to a different test port, pull back the sleeve on the socket to disengage.
A complete coupling consists of a plug and socket (both sold separately). The plug and socket both have a shut-off valve to stop flow when the coupling is separated, so they're sometimes called double shut-off couplings. They meet ISO 15171-1, which is an international standard for dimensional and performance standards of flat-face diagnostic push-to-connect couplings.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size. Pressure ratings are given for static (constant) pressure conditions.

- Maximum Pressure: 6,000 psi @ 72° F
- Maximum Vacuum: 27.4 in. of Hg @ 72° F
- Temperature Range: -40° to 250° F
- Compatible With: Parker PD-Series, Eaton/Aeroquip FD90, Faster DF
- Specifications Met: ISO 15171-1, SAE J1502
Plugs are also known as nipples.
UN/UNF (SAE Straight) male threads have a gasket to prevent leaks. They’re also known as O-ring boss threads.
International Standard ISO B Quick-Disconnect Hose Couplings for Hydraulic Fluid

A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a hydraulic hose line. All of the International Standard ISO B quick-disconnect plugs are compatible with any of the International Standard ISO B quick-disconnect sockets of the same coupling size, regardless of the pipe size. Couplings meet ISO 7241-1 Series B dimensional and performance standards and are compatible with Parker 60 couplings. Also known as double shut-off couplings, the plugs and sockets both have a shut-off valve that stops the flow when the coupling is separated.
Plugs are also known as nipples.
Sleeve-lock sockets connect by sliding back the sleeve on the socket, inserting the plug, and releasing the sleeve. To disconnect, slide the sleeve back and pull out the plug.
Push-to-connect sockets are easier to connect than sleeve-lock sockets. Connect by pushing the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects.
Zinc-plated steel is stronger and more durable than other metals. It has fair corrosion resistance.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size. Pressure ratings are given for static (constant) pressure conditions.
Warning: Never attempt to connect or disconnect couplings when operating at maximum pressure. Stop the flow before you disconnect the line.



- Maximum Pressure: See table
- Maximum Vacuum: 27 in. of Hg @ 72° F
- Temperature Range: -40° to 250° F
- Compatible With: ISO 7241-1 Series B, Parker 60
- Specifications Met: ISO 7241-1 Series B



- Maximum Pressure: See table
- Maximum Vacuum: 27 in. of Hg @ 72° F
- Temperature Range: -40° to 250° F
- Compatible With: ISO 7241-1 Series B, Parker 60
- Specifications Met: ISO 7241-1 Series B



- Maximum Pressure: 3,500 psi @ 72° F
- Temperature Range: -10° to 212° F
- Compatible With: ISO 7241-1 Series B, Parker 60
- Specifications Met: ISO 7241-1 Series B
Minimal-Spill Quick-Disconnect Hose Couplings for Coolant

Reduce the risk of spills near electronics when connecting and disconnecting liquid cooling lines. Also known as double shut-off couplings, these couplings have a shut-off valve on both sides that stops the flow of coolant if they’re separated. Often used to connect servers to a cooling manifold in data centers, they comply with the performance specifications of OCP (Open Computing Project). To avoid mixing up your lines, choose blue couplings for cold supply and red couplings for hot return. A complete coupling consists of a plug and socket or two adapters (all sold separately).
Install plugs on manifolds and servers. They’re also known as nipples. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.

- Maximum Pressure: 150 psi @ 72° F
- Temperature Range: 65° to 145° F
- Material: 303 Stainless Steel
- Compatible With: Danfoss Hansen UQD, Parker Hannifin UQD, CEJN UQD, CPC UQD, Staubli UQD

























