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.
Standard-port valves slightly 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: 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 | Port Type | 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 | Standard | 2 11/16" | 0000000 | 000000 |
| __ | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 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 | Standard | 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 | Standard | 2 11/16" | 0000000 | 00000 |
NPT Male × Standard Barbed | ||||||||||
| 1/8 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 7/16" | 0000000 | 00000 |
| 1/4 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 7/16" | 0000000 | 00000 |
| 3/8 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 1/2" | 000000 | 00000 |
| 1/2 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 5/8" | 0000000 | 00000 |
NPT Male × Tapered Barbed | ||||||||||
| 1/8 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | Standard | 2 5/8" | 0000000 | 00000 |
| 1/8 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 9/16" | 0000000 | 00000 |
| 1/4 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | Standard | 2 11/16" | 0000000 | 00000 |
| 1/4 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 5/8" | 0000000 | 00000 |
| 3/8 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | Standard | 2 3/4" | 0000000 | 00000 |
| 3/8 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 11/16" | 0000000 | 00000 |
| 1/2 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | Standard | 2 7/8" | 0000000 | 00000 |
| 1/2 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 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 | Standard | 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 | Standard | 2 7/16" | 00000000 | 00000 |
| 1/4 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 7/16" | 00000000 | 00000 |
| 3/8 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 1/2" | 00000000 | 00000 |
| 1/2 | 1/4" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 5/8" | 00000000 | 00000 |
NPT Male × Tapered Barbed | ||||||||||
| 1/8 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | Standard | 2 5/8" | 00000000 | 00000 |
| 1/8 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 9/16" | 0000000 | 00000 |
| 1/4 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | Standard | 2 11/16" | 00000000 | 00000 |
| 1/4 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 5/8" | 0000000 | 00000 |
| 3/8 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | Standard | 2 3/4" | 00000000 | 00000 |
| 3/8 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 11/16" | 0000000 | 00000 |
| 1/2 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Buna-N Rubber | Standard | 2 7/8" | 00000000 | 00000 |
| 1/2 | 3/8", 1/2" | Multiple | 1.4 | 500 psi @ 180° F | 35° to 180° | Viton® Fluoroelastomer Rubber | Standard | 2 13/16" | 0000000 | 00000 |
- Valve Type:
Brass Body: Ball
316 Stainless Steel Body: Stop Cock - For Use With: Air, Oil, Water
- Seal Material: See table
| Pipe Size | For Tube ID | Number of Barbs | Max. Pressure | Temperature Range, °F | Seal Material | Port Type | 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° | PTFE Plastic | Standard | 2 1/4" | 0000000 | 000000 |
| 1/4 | 3/8" | Single | 150 psi @ 300° F | 0° to 300° | PTFE Plastic | Standard | 2 1/4" | 0000000 | 00000 |
| 3/8 | 3/8" | Single | 150 psi @ 300° F | 0° to 300° | PTFE Plastic | Standard | 2 1/4" | 0000000 | 00000 |
| 1/2 | 3/8" | Single | 150 psi @ 300° F | 0° to 300° | PTFE Plastic | Standard | 2 1/4" | 0000000 | 00000 |
Compact On/Off Valves with Barbed Fittings
Install these valves in tight spaces—they have a short body length and low profile. A barbed end grips onto tubing for a secure hold.
Valves with lever handles provide more leverage for easy operation.
Valves with T-handles resist accidental movement when snagged or bumped.
- Valve Type: Ball
- For Use With: Air, Oil, Water
- Seal Material: Buna-N Rubber
| Pipe Size | For Tube ID | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
NPT Female × Barbed | ||||||
|---|---|---|---|---|---|---|
| 1/8 | 1/4" | 500 psi @ 180° F | -30° to 180° | 2 1/4" | 0000000 | 000000 |
| 1/8 | 3/8" | 500 psi @ 180° F | -30° to 180° | 2 1/4" | 0000000 | 00000 |
NPT Male × Barbed | ||||||
| 1/8 | 1/4" | 500 psi @ 180° F | -30° to 180° | 2 7/16" | 0000000 | 00000 |
| 1/8 | 3/8" | 500 psi @ 180° F | -30° to 180° | 2 7/16" | 0000000 | 00000 |
- Valve Type: Ball
- For Use With: Air, Oil, Water
- Seal Material: Buna-N Rubber
| Pipe Size | For Tube ID | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
NPT Female × Barbed | ||||||
|---|---|---|---|---|---|---|
| 1/8 | 1/4" | 500 psi @ 180° F | -30° to 180° | 2 1/4" | 0000000 | 000000 |
| 1/8 | 3/8" | 500 psi @ 180° F | -30° to 180° | 2 1/4" | 0000000 | 00000 |
NPT Male × Barbed | ||||||
| 1/8 | 1/4" | 500 psi @ 180° F | -30° to 180° | 2 7/16" | 0000000 | 00000 |
| 1/8 | 3/8" | 500 psi @ 180° F | -30° to 180° | 2 7/16" | 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.
- 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 1/8" | 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 |
Drain Valves
Also known as stop cocks, install these valves on your tank for easy draining of air or fluid.
Inline handles can be operated from any position. The handle surrounds the drain outlet, so liquids may splash onto your hands or the handle. Side handles are out of the way of the flow, so your hand and the handle stay dry.
Valves with an external seal are for higher flow applications than valves with an internal seal. They also have a longer valve stem, so they’re less likely to introduce contaminants from exposed threads. Valves with an internal seal have shorter stems than those with external seals, so they fit shorter clearances. However, they’re more likely to introduce contaminants to the tank from debris collected on the exposed threads.
Valves with a brass body won’t corrode when venting air or draining water—even in wet or humid environments.
Brass handles won’t corrode.
Valves with a thumb-screw handle open by rolling the slip-resistant thumb screw between your fingers. Since these valves don’t have a wide handle, they fit in tighter spaces than valves with other handle styles.
Inlet | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Outlet Connection Type | Handle Material | Body Material | For Use With | Max. Pressure | Temp. Range, °F | Ht. | Each | |
Straight—External Seal | |||||||||||
| 1/8 | NPT | Male | Unthreaded Hole | Brass | Brass | Air, Water, Inert Gas | 100 psi @ 250° F | -65° to 250° | 3/4" | 0000000 | 00000 |
Inlet | Outlet | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Connection Type | Handle Material | Body Material | For Use With | Max. Pressure | Temp. Range, °F | Ht. | Each | |
Straight—External Seal | |||||||||||
| 1/8 | NPT | Male | Unthreaded Hole | Steel | Brass | Air, Water, Oil, Inert Gas | 150 psi @ 250° F | -65° to 250° | 7/8" | 0000000 | 00000 |
Valves with a wing-nut handle give you leverage to open tight, stubborn valves that have been sealed for long periods of time. The wings on these handles face outward, so they fit tanks without enough clearance around the drain hole to fit handles with inlet-facing wings.
A spout outlet smoothly pours any draining liquid into buckets without splashing.
Inlet | Outlet | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Connection Type | Handle Material | Body Material | For Use With | Max. Pressure | Temp. Range, °F | Ht. | Each | |
Straight—External Seal | |||||||||||
| 1/4 | NPT | Male | Spout | Steel | Brass | Air, Water, Oil, Inert Gas | 150 psi @ 250° F | -65° to 250° | 1 1/2" | 0000000 | 00000 |
| 1/4 | NPT | Male | Unthreaded Hole | Steel | Brass | Air, Water, Oil, Inert Gas | 150 psi @ 250° F | -65° to 250° | 1" | 0000000 | 0000 |
| 3/8 | NPT | Male | Unthreaded Hole | Steel | Brass | Air, Water, Oil, Inert Gas | 150 psi @ 250° F | -65° to 250° | 1 1/4" | 0000000 | 0000 |
Valves with a wing-nut handle give you leverage to open tight, stubborn valves that have been sealed for long periods of time. The wings on these handles face inward, so they have a lower profile than outlet-facing wing nuts. A spout smoothly pours any draining liquid into buckets without splashing.
Inlet | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Outlet Connection Type | Handle Material | Body Material | For Use With | Max. Pressure | Temp. Range, °F | Port-to-Port Lg. | Each | |
90° Elbow—External Seal | |||||||||||
| 1/4 | NPT | Male | Spout | Steel | Brass | Air, Water, Oil, Inert Gas | 150 psi @ 250° F | -65° to 250° | 11/16" | 0000000 | 00000 |
Valves with a T-handle have two flat arms that provide more leverage and torque than thumb-screw handles and are more comfortable to grip than wing-nut handles. They have a removable handle, which can be disassembled for cleaning.
Inlet | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Outlet Connection Type | Handle Material | Body Material | For Use With | Features | Max. Pressure | Temp. Range, °F | Ht. | Each | |
Straight—Internal Seal | ||||||||||||
| 1/8 | NPT | Male | Unthreaded Hole | Brass | Brass | Water, Oil, Inert Gas | Removable Handle | 150 psi @ 250° F | -65° to 250° | 1 9/16" | 000000 | 000000 |
| 1/4 | NPT | Male | Unthreaded Hole | Brass | Brass | Water, Oil, Inert Gas | Removable Handle | 150 psi @ 250° F | -65° to 250° | 1 11/16" | 000000 | 00000 |
| 3/8 | NPT | Male | Unthreaded Hole | Brass | Brass | Water, Oil, Inert Gas | Removable Handle | 150 psi @ 250° F | -65° to 250° | 1 13/16" | 000000 | 00000 |
High-Temperature Drain Valves
Empty fluid from tanks in boiler rooms or heat transfer systems—these valves withstand higher temperatures than our other drain valves. Also known as stop cocks, their handle twists open to let liquid flow out. They have a spout that smoothly pours the draining liquid into buckets without splashing. The handle is positioned to be out of the way from the spout, so your hand stays dry.
Plastic handles have a knurled grip that’s comfortable and won’t slip as you turn it.
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.
| 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 |