About On/Off Valves
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Compact Threaded On/Off Valves
Install these low-profile valves in tight spots.
316 stainless steel valves have the best corrosion resistance.
Short lever handles, T-handles, and screwdriver-operated handles resist accidental movement when snagged or bumped.
- 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, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material: Graphite
| Pipe Size | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
NPT Female × NPT Female | |||||
|---|---|---|---|---|---|
| 1/8 | 500 psi @ 210° F | -20° to 550° | 1 13/16" | 0000000 | 000000 |
| 1/4 | 500 psi @ 210° F | -20° to 550° | 2" | 0000000 | 00000 |
NPT Male × NPT Female | |||||
| 1/8 | 500 psi @ 210° F | -20° to 550° | 1 13/16" | 0000000 | 00000 |
| 1/4 | 500 psi @ 210° F | -20° to 550° | 2" | 0000000 | 00000 |
NPT Male × NPT Male | |||||
| 1/8 | 500 psi @ 210° F | -20° to 550° | 1 13/16" | 0000000 | 00000 |
| 1/4 | 500 psi @ 210° F | -20° to 550° | 2" | 0000000 | 00000 |
NPT Male × Drain | |||||
| 1/8 | 500 psi @ 210° F | -20° to 550° | 1 13/16" | 0000000 | 00000 |
| 1/4 | 500 psi @ 210° F | -20° to 550° | 2" | 0000000 | 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 |
On/Off Valves with Barbed Fittings
These valves have barbs that grip onto tubing, providing a secure hold.
316 stainless steel valves have the best corrosion resistance.
T-handle valves resist accidental movement when snagged or bumped. They are also known as stop cocks.
For technical drawings and 3-D models, click on a part number.
- Valve Type: Stop Cock
- For Use With: Air, Water
- Seal Material: PTFE Plastic
| Pipe Size | For Tube ID | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
316 Stainless Steel Body | ||||||
|---|---|---|---|---|---|---|
NPT Male × Barbed | ||||||
| 1/8 | 3/8" | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 000000 |
| 1/4 | 3/8" | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
| 3/8 | 3/8" | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
| 1/2 | 3/8" | 150 psi @ 300° F | 0° to 300° | 2 1/4" | 0000000 | 00000 |
Plastic On/Off Valves with Barbed Fittings
Barbs grip onto tubing, providing a secure hold.
T-handles resist accidental movement when snagged or bumped.
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.
For technical drawings and 3-D models, click on a part number.
- Valve Type: Stop Cock
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material: Polypropylene Plastic
| For Tube ID | Flow Coefficient (Cv) | Max. Pressure | Port Type | End-to-End Lg. | Each | |
Purple Polycarbonate Plastic Body | ||||||
|---|---|---|---|---|---|---|
Barbed × Barbed | ||||||
| 1/8" | Not Rated | 50 psi @ 70° F | Standard | 1 1/2" | 0000000 | 00000 |
On/Off Valves with Quick-Turn Fittings
Also known as luer-lock couplings, quick-turn fittings consist of a plug and a socket that connect with a half turn, so you can easily connect and disconnect your line.
Polycarbonate valves are lightweight and more economical than nickel-plated brass valves, but they are not as durable. These valves have a T-handle that resists accidental movement when snagged or bumped.
Nickel-plated brass valves are more corrosion resistant and durable than polycarbonate valves, however they are heavier and more expensive.
For technical drawings and 3-D models, click on a part number.
- Valve Type: Stop Cock
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
| For Tube ID | Max. Pressure | End-to-End Lg. | Each | |
Quick-Turn Female × Barbed | ||||
|---|---|---|---|---|
| 1/8" | 50 psi @ 70° F | 1 3/8" | 0000000 | 00000 |
Quick-Turn Female × Quick-Turn Female | ||||
| __ | 50 psi @ 70° F | 1 3/16" | 0000000 | 0000 |
Quick-Turn Male × Barbed | ||||
| 1/8" | 50 psi @ 70° F | 1 1/2" | 0000000 | 0000 |
Quick-Turn Male × Quick-Turn Female | ||||
| __ | 50 psi @ 70° F | 1 3/8" | 0000000 | 0000 |
Quick-Turn Male × Quick-Turn Male | ||||
| __ | 50 psi @ 70° F | 1 1/2" | 0000000 | 0000 |
- Valve Type: Stop Cock
- For Use With: Oil, Water
On/Off Valves with Barbed Fittings for Chemicals
Barbs grip onto tubing, providing a secure hold. To withstand aggressive and corrosive solutions in chemical-processing applications, these valves have a plastic body and a chemical-resistant seal.
T-handles resist accidental movement when snagged or bumped.
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: Stop Cock
- For Use With: Air, Argon, Beverage, Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Food, Helium, Hydrochloric Acid, Isopropyl Alcohol, Krypton, Methanol, Neon, Nitric Acid, Phosphoric Acid, Salt Water, Sodium Hydroxide, Xenon
- Seal Material: Polyethylene Plastic
- Seat Material: Polyethylene Plastic
- Valve Type: Stop Cock
- For Use With: Ammonia, Ethylene Glycol, Isopropyl Alcohol, Methanol, Propane
- Seal Material: Polypropylene Plastic
- Seat Material: Polypropylene Plastic
| For Tube ID | Max. Pressure | Temperature Range, °F | Port Type | End-to-End Lg. | Each | |
Barbed × Barbed | ||||||
|---|---|---|---|---|---|---|
| 1/4" | 15 psi @ 250° F | 35° to 275° | Standard | 2 9/16" | 00000000 | 0000000 |
- Valve Type: Stop Cock
- For Use With: Air, Carbon Dioxide, Deionized Water, Ethylene Glycol, Isopropyl Alcohol, Mineral Spirits, Natural Gas, Oxygen, Phosphoric Acid, Soap Solutions, Sodium Hydroxide
- Seal Material: EPDM Rubber
- Seat Material: EPDM Rubber
Compact Threaded On/Off Valves for Chemicals
For chemical-processing applications in confined areas, these valves have an EPDM seal and a PVC or CPVC body to withstand aggressive and corrosive solutions and a low-profile handle to fit in tight spots.
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:
For Lever Valves: Stop Cock
For T-Handle Valves: Ball - For Use With: Ammonia, Carbon Dioxide, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Liquid Carbon Dioxide, Phosphoric Acid, Sodium Hydroxide, Water
- Seal Material: EPDM Rubber
Drainage Valves
Also known as stop cocks, install these valves on your tank for easy draining.
Valves with external seal are for higher flow applications than valves with an internal seal.
Valves with removable handle can be disassembled for cleaning.
Inlet | Outlet | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Connection Type | For Tube ID | Tube Connection Type | For Use With | Cable Lg., ft. | Features | Max. Pressure | Temp. Range, °F | Ht. | Wd. | Body Material | Each | |
Thumb-Screw Handle | |||||||||||||||
External Seal | |||||||||||||||
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | Air | __ | __ | 250 psi @ 250° F | -40° to 250° | 1 1/8" | __ | Brass | 0000000 | 00000 |
Wing-Nut Handle | |||||||||||||||
External Seal | |||||||||||||||
| 1/8 | NPT | Male | Tube | 1/4" | Barbed | Water, Oil | __ | __ | 150 psi @ 250° F | -65° to 250° | 1 1/2" | __ | Brass | 0000000 | 0000 |
| 1/8 | NPT | Male | Unthreaded Hole | __ | __ | Water, Oil | __ | __ | 150 psi @ 250° F | -65° to 250° | 15/16" | __ | Brass | 0000000 | 0000 |
| 1/4 | NPT | Male | Tube | 3/8" | Barbed | Water, Oil | __ | __ | 150 psi @ 250° F | -65° to 250° | 1 9/16" | __ | Brass | 0000000 | 0000 |
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | Water, Oil | __ | __ | 150 psi @ 250° F | -40° to 350° | 1" | __ | Brass | 0000000 | 0000 |
| 3/8 | NPT | Male | Unthreaded Hole | __ | __ | Water, Oil | __ | __ | 150 psi @ 250° F | -65° to 250° | 1 1/4" | __ | Brass | 0000000 | 0000 |
| 1/2 | NPT | Male | Unthreaded Hole | __ | __ | Water, Oil | __ | __ | 150 psi @ 250° F | -65° to 250° | 1 1/2" | __ | Brass | 0000000 | 00000 |
Internal Seal | |||||||||||||||
| 1/8 | NPT | Male | Unthreaded Hole | __ | __ | Water, Oil | __ | __ | 150 psi @ 250° F | -65° to 250° | 1 5/16" | __ | Brass | 0000000 | 00000 |
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | Water, Oil | __ | __ | 150 psi @ 250° F | -65° to 250° | 15/16" | __ | Brass | 0000000 | 0000 |
| 3/8 | NPT | Male | Unthreaded Hole | __ | __ | Water, Oil | __ | __ | 150 psi @ 250° F | -65° to 250° | 1 1/4" | __ | Brass | 0000000 | 0000 |
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 | 00000 |
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | Water, Oil | __ | __ | 150 psi @ 250° F | -65° to 250° | 1 3/4" | 1 7/16" | Brass | 0000000 | 00000 |
| 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 |
Cable Pull | |||||||||||||||
Internal Seal | |||||||||||||||
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | Air | 1 1/2 | __ | 250 psi @ 250° F | -40° to 250° | 1 1/4" | __ | Brass | 00000000 | 0000 |
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | Air | 3 | __ | 250 psi @ 250° F | -40° to 250° | 1 1/4" | __ | Brass | 00000000 | 0000 |
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | Air | 4 | __ | 150 psi @ 250° F | -65° to 250° | 1 7/8" | __ | Brass | 00000000 | 0000 |
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | Air | 5 | __ | 250 psi @ 250° F | -40° to 250° | 1 1/4" | __ | Brass | 00000000 | 0000 |
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.
Laboratory Valves
Styles A and B come with three interchangeable, color-coded identification buttons: orange for air, blue for gas, and yellow for vacuum.
For technical drawings and 3-D models, click on a part number.
Valve | Max. | Inlet | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | Function | Type | Lg. | Ht. | Air Pressure, psi | Vacuum, in. of Hg | Gas Pressure, psi | Pipe Size | Thread Type | Gender | Outlet Hose Connection Type | For Hose ID | Each | |
For Air and Gas | ||||||||||||||
Chrome-Plated Brass | ||||||||||||||
| A | On/Off | Stop Cock | 3 7/8" | 1 1/2" | 125 | 30 | 0.5 | 3/8 | NPT | Male | Barbed | 1/4"-3/8" | 0000000 | 000000 |