About On/Off Valves
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On/Off Valves with Barbed Fittings
These valves have barbs that grip onto tubing, providing a secure hold. Because they’re made of metal, they are more durable than plastic valves and withstand higher temperatures.
Lever handle valves provide the best leverage, so they’re good when you want to quickly open and close valves with minimal effort.
Nickel-plated brass valves are more corrosion resistant than plain brass valves. 316 stainless steel valves have the best corrosion resistance.
Valves with tapered barbs can be used with multiple tube sizes.
Valves with single barbs have a smooth clamping surface for extra-tight connections that minimize leaks.
Valves with Buna-N rubber seals resist water and oil. Valves with fluoroelastomer seals are more resistant to chemicals and temperature fluctuations than those with Buna-N rubber seals. They’re good for systems that are flushed with hot fluids or cleaners.
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.
For technical drawings and 3-D models, click on a part number.





- Valve Type: Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material: See table
Pipe Size | For Tube ID | Number of Barbs | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Seal Material | End-to-End Lg. | Each | |
Brass Body | |||||||||
---|---|---|---|---|---|---|---|---|---|
Standard Barbed × Standard Barbed | |||||||||
__ | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | 2 3/4" | 0000000 | 000000 |
__ | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 3/4" | 0000000 | 00000 |
NPT Female × Standard Barbed | |||||||||
1/4 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 3/8" | 0000000 | 00000 |
NPT Female × Tapered Barbed | |||||||||
1/4 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 5/16" | 0000000 | 00000 |
NPT Male × Standard Barbed | |||||||||
1/8 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 7/16" | 0000000 | 00000 |
1/4 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 7/16" | 0000000 | 00000 |
3/8 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 1/2" | 000000 | 00000 |
1/2 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 5/8" | 0000000 | 00000 |
NPT Male × Tapered Barbed | |||||||||
1/8 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | 2 5/8" | 0000000 | 00000 |
1/4 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | 2 11/16" | 0000000 | 00000 |
3/8 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | 2 3/4" | 0000000 | 00000 |
1/2 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | 2 7/8" | 0000000 | 00000 |
NPTF Male × Tapered Barbed | |||||||||
1/8 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 9/16" | 0000000 | 00000 |
1/4 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 5/8" | 0000000 | 00000 |
3/8 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 11/16" | 0000000 | 00000 |
1/2 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 13/16" | 0000000 | 00000 |
Nickel-Plated Brass Body | |||||||||
Standard Barbed × Standard Barbed | |||||||||
__ | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 3/4" | 00000000 | 00000 |
NPT Male × Standard Barbed | |||||||||
1/8 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 7/16" | 00000000 | 00000 |
1/4 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 7/16" | 00000000 | 00000 |
3/8 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 1/2" | 00000000 | 00000 |
1/2 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 5/8" | 00000000 | 00000 |
NPT Male × Tapered Barbed | |||||||||
1/8 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | 2 5/8" | 00000000 | 00000 |
1/4 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | 2 11/16" | 00000000 | 00000 |
3/8 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | 2 3/4" | 00000000 | 00000 |
1/2 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | 2 7/8" | 00000000 | 00000 |
NPTF Male × Tapered Barbed | |||||||||
1/8 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 9/16" | 0000000 | 00000 |
1/4 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 5/8" | 0000000 | 00000 |
3/8 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 11/16" | 0000000 | 00000 |
1/2 | 3/8", 1/2", 5/8" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | 2 13/16" | 0000000 | 00000 |

- Valve Type: Stop Cock
- For Use With: Air, Oil, Water
- Seal Material: PTFE Plastic
Pipe Size | For Tube ID | Number of Barbs | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
316 Stainless Steel Body | |||||||
---|---|---|---|---|---|---|---|
NPT Male × Standard Barbed | |||||||
1/8 | 3/8" | Single | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 000000 |
1/4 | 3/8" | Single | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
3/8 | 3/8" | Single | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
1/2 | 3/8" | Single | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
Compact Threaded On/Off Valves
Install these valves in tight spots, such as where pipelines are crowded together. They’re less than half as long as standard threaded valves and one-third shorter in height.
316 stainless steel valves have the best corrosion resistance.
Short-lever handles and T-handles resist accidental movement when snagged or bumped. Lever handles are easy to open and close—they give you the most leverage of any handle type.
Valves with threaded outlets can connect to pipe or hose, giving you more control over where your fluid flows than valves with a drain or spout outlet.
Valves with a drain or spout outlet direct flow to a drain or bucket with minimal splashing. Install valves with a drain outlet to the bottom of a tank. Install valves with a spout outlet to the side of a tank.
For technical drawings and 3-D models, click on a part number.





- Valve Type: Stop Cock
- For Use With: Air
- Seal Material: Brass
Pipe Size | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
NPT Female × NPT Female | |||||
---|---|---|---|---|---|
1/8 | 80 psi @ 500° F | 35° to 500° | 1 5/8" | 00000000 | 000000 |
1/4 | 80 psi @ 500° F | 35° to 500° | 1 5/8" | 00000000 | 00000 |
3/8 | 80 psi @ 500° F | 35° to 500° | 1 7/8" | 00000000 | 00000 |
1/2 | 80 psi @ 500° F | 35° to 500° | 2" | 00000000 | 00000 |
NPT Male × NPT Female | |||||
3/8 | 80 psi @ 500° F | 35° to 500° | 1 7/8" | 00000000 | 00000 |
1/2 | 80 psi @ 500° F | 35° to 500° | 1 15/16" | 00000000 | 00000 |
NPT Male × NPT Male | |||||
1/4 | 80 psi @ 500° F | 35° to 500° | 2 1/8" | 00000000 | 00000 |
3/8 | 80 psi @ 500° F | 35° to 500° | 2 3/8" | 00000000 | 00000 |
1/2 | 80 psi @ 500° F | 35° to 500° | 2 3/16" | 00000000 | 00000 |
NPT Male × Drain | |||||
1/8 | 80 psi @ 500° F | 35° to 500° | 1 11/16" | 00000000 | 00000 |
1/4 | 80 psi @ 500° F | 35° to 500° | 1 13/16" | 00000000 | 00000 |
3/8 | 80 psi @ 500° F | 35° to 500° | 2" | 00000000 | 00000 |
1/2 | 80 psi @ 500° F | 35° to 500° | 2" | 00000000 | 00000 |
NPT Male × Spout | |||||
1/8 | 80 psi @ 500° F | 35° to 500° | 2 1/4" | 00000000 | 00000 |
1/4 | 80 psi @ 500° F | 35° to 500° | 2 1/4" | 00000000 | 00000 |
3/8 | 80 psi @ 500° F | 35° to 500° | 2 1/4" | 00000000 | 00000 |
1/2 | 80 psi @ 500° F | 35° to 500° | 2 3/8" | 00000000 | 00000 |




- Valve Type: Stop Cock
- For Use With: Air
- Seal Material: Brass
Pipe Size | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
NPT Female × NPT Female | |||||
---|---|---|---|---|---|
1/8 | 80 psi @ 500° F | 35° to 500° | 1 5/8" | 00000000 | 000000 |
1/4 | 80 psi @ 500° F | 35° to 500° | 1 5/8" | 00000000 | 00000 |
3/8 | 80 psi @ 500° F | 35° to 500° | 1 7/8" | 00000000 | 00000 |
NPT Male × NPT Female | |||||
1/8 | 80 psi @ 500° F | 35° to 500° | 1 13/16" | 00000000 | 00000 |
1/4 | 80 psi @ 500° F | 35° to 500° | 1 7/8" | 00000000 | 00000 |
3/8 | 80 psi @ 500° F | 35° to 500° | 1 7/8" | 00000000 | 00000 |
NPT Male × NPT Male | |||||
1/8 | 80 psi @ 500° F | 35° to 500° | 1 13/16" | 00000000 | 00000 |
1/4 | 80 psi @ 500° F | 35° to 500° | 2 1/8" | 00000000 | 00000 |
3/8 | 80 psi @ 500° F | 35° to 500° | 2 3/8" | 00000000 | 00000 |
NPT Male × Spout | |||||
1/8 | 80 psi @ 500° F | 35° to 500° | 2 1/4" | 00000000 | 00000 |
1/4 | 80 psi @ 500° F | 35° to 500° | 2 1/4" | 00000000 | 00000 |


- Valve Type: Stop Cock
- For Use With: Air, Water
- Seal Material: PTFE Plastic
Pipe Size | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
NPT Female × Spout | |||||
---|---|---|---|---|---|
1/8 | 150 psi @ 300° F | 0° to 300° | 2 13/16" | 0000000 | 000000 |
1/4 | 150 psi @ 300° F | 0° to 300° | 2 13/16" | 0000000 | 00000 |
3/8 | 150 psi @ 300° F | 0° to 300° | 2 13/16" | 0000000 | 00000 |
NPT Male × Spout | |||||
1/4 | 150 psi @ 300° F | 0° to 300° | 2 13/16" | 0000000 | 00000 |
3/8 | 150 psi @ 300° F | 0° to 300° | 2 13/16" | 0000000 | 00000 |
1/2 | 150 psi @ 300° F | 0° to 300° | 2 13/16" | 0000000 | 00000 |



- Valve Type: Stop Cock
- For Use With: Air, Oil, Water
- Seal Material: PTFE Plastic
Pipe Size | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
NPT Female × NPT Female | |||||
---|---|---|---|---|---|
1/8 | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 000000 |
1/4 | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
3/8 | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
NPT Female × NPT Male | |||||
1/8 | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
1/4 | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
3/8 | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
NPT Male × NPT Male | |||||
1/8 | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
1/4 | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
Drainage Valves

Also known as stop cocks, install these valves on your tank for easy draining.
Valves with removable handle can be disassembled for cleaning.
Inlet | Outlet | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Thread Type | Gender | Connection Type | For Use With | Features | Max. Pressure | Temp. Range, °F | Ht. | Body Material | Each | |
T-Handle | |||||||||||
Internal Seal | |||||||||||
1/8 | NPT | Male | Unthreaded Hole | Water, Oil, Inert Gas | Removable Handle | 150 psi @ 250° F | -65° to 250° | 1 9/16" | Brass | 000000 | 000000 |
1/4 | NPT | Male | Unthreaded Hole | Water, Oil, Inert Gas | Removable Handle | 150 psi @ 250° F | -65° to 250° | 1 11/16" | Brass | 000000 | 00000 |
3/8 | NPT | Male | Unthreaded Hole | Water, Oil, Inert Gas | Removable Handle | 150 psi @ 250° F | -65° to 250° | 1 13/16" | Brass | 000000 | 00000 |
Easy-Grip Drainage Valves

The large knob makes these drainage valves easy to grip. They're also known as stop cocks.
For technical drawings and 3-D models, click on a part number.
Gas Sampling Valves for Syringes

- Valve Type: Plug
- For Use With: Butane, Carbon Dioxide, Natural Gas, Nitrogen, Oxygen
Convert an everyday syringe into a gas sampling syringe. These valves allow you to collect, transport, and store gas samples without worrying about evaporation or leaks. Slide the female end over the base of your syringe and attach a needle to the male side.
For technical drawings and 3-D models, click on a part number.
Flow Pattern | Maximum Pressure | Temperature Range | End-to-End Lg. | Autoclavable | Each | |
Plastic Body with Standard Lever Handle | ||||||
---|---|---|---|---|---|---|
Female Luer Lock × Male Luer Lock | ||||||
Straight | 100 psi @ 70° F | Not Rated | 1" | Yes | 0000000 | 0000000 |