About On/Off Valves
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High-Pressure Compact Threaded On/Off Valves
These valves handle twice the pressure of other compact valves. Install them in tight spots, such as where pipelines are crowded together. They’re roughly half the height and length of standard threaded valves.
316 stainless steel valves resist corrosion better than brass and steel valves.
Lockable handles can be fixed in place using a padlock (not included).
Full-port valves do not restrict flow. 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: Ball
- For Use With: Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material: PTFE Plastic
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating | Port Type | End-to-End Lg. | Each | |
NPT Female × NPT Female | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/4 × 1/4 | 1.3 | 2000 psi @ 100° F | -30° to 400° | Not Rated | Standard | 2" | 00000000 | 000000 |
| 3/8 × 3/8 | 2.6 | 2000 psi @ 100° F | -30° to 400° | Not Rated | Standard | 2 3/8" | 00000000 | 00000 |
| 1/2 × 1/2 | 9.2 | 2000 psi @ 100° F | -30° to 400° | Not Rated | Standard | 2 15/16" | 00000000 | 00000 |
| 3/4 × 3/4 | 12.6 | 2000 psi @ 100° F | -30° to 400° | Not Rated | Standard | 2 5/16" | 00000000 | 00000 |
- Valve Type: Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | For Max. Shackle Dia. | Each | |
NPT Female × NPT Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4 × 1/4 | 8.2 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Full | 2 13/16" | 9/32" | 000000000 | 000000 |
| 3/8 × 3/8 | 6.7 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Standard | 2 13/16" | 9/32" | 000000000 | 00000 |
| 1/2 × 1/2 | 5.7 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Standard | 3 3/8" | 9/32" | 000000000 | 00000 |
NPT Female × NPT Male | |||||||||
| 1/4 × 1/4 | 8.2 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Full | 2 13/16" | 9/32" | 000000000 | 00000 |
| 3/8 × 3/8 | 6.7 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Standard | 2 13/16" | 9/32" | 000000000 | 00000 |
| 1/2 × 1/2 | 5.7 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Standard | 3 3/8" | 9/32" | 000000000 | 00000 |
NPT Male × NPT Male | |||||||||
| 1/4 × 1/4 | 8.2 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Full | 2 3/4" | 9/32" | 000000000 | 00000 |
| 3/8 × 3/8 | 6.7 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Standard | 2 3/4" | 9/32" | 000000000 | 00000 |
| 1/2 × 1/2 | 5.7 | 1000 psi @ 100° F | 0° to 370° | 29.9 | Standard | 3 7/16" | 9/32" | 000000000 | 00000 |
On/Off Valves with Yor-Lok Fittings
For extra gripping power and a strong seal, the Yor-Lok fittings on these valves have two sleeves that bite into tubing as you tighten the nut. All are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings. Valves are standard port, so they slightly restrict flow.
316 stainless steel valves are more corrosion resistant than plain and nickel-plated brass valves.
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: PTFE Plastic
| For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
Yor Lok × Yor Lok | ||||||
|---|---|---|---|---|---|---|
| 1/4" | 1.25 | 2000 psi @ 100° F | -30° to 400° | 3 9/16" | 0000000 | 000000 |
| 3/8" | 2.5 | 2000 psi @ 100° F | -30° to 400° | 3 9/16" | 0000000 | 00000 |
| 1/2" | 9.25 | 2000 psi @ 100° F | -30° to 400° | 3 3/4" | 0000000 | 000000 |
| 3/4" | 12.65 | 2000 psi @ 100° F | -30° to 400° | 4 7/16" | 00000000 | 000000 |
| 1" | 17.35 | 2000 psi @ 100° F | -30° to 400° | 5 1/8" | 00000000 | 000000 |
| 6mm | 1.25 | 2000 psi @ 100° F | -30° to 400° | 3 9/16" | 00000000 | 00000 |
| 8mm | 1.35 | 2000 psi @ 100° F | -30° to 400° | 3 9/16" | 00000000 | 000000 |
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 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 handles with outlet-facing wing nuts.
Valves with a tube outlet can be attached to a tube or hose to route the flow of draining liquid.
Inlet | Outlet | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Thread Type | Gender | Connection Type | For Tube ID | Tube Connection Type | Gender | 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 | Water, Oil | 150 psi @ 250° F | -65° to 250° | 15/16" | 0000000 | 00000 |
| 1/8 | NPT | Male | Unthreaded Hole | __ | __ | __ | Steel | Brass | Air, Water, Oil, Inert Gas | 150 psi @ 250° F | -65° to 250° | 7/8" | 0000000 | 0000 |
| 1/4 | NPT | Male | Tube | 3/8" | Barbed | Male | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 1 9/16" | 0000000 | 0000 |
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | __ | Steel | Brass | Water, Oil | 150 psi @ 250° F | -40° to 350° | 1" | 0000000 | 0000 |
| 3/8 | NPT | Male | Unthreaded Hole | __ | __ | __ | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 1 1/4" | 0000000 | 0000 |
| 1/2 | NPT | Male | Unthreaded Hole | __ | __ | __ | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 1 1/2" | 0000000 | 00000 |
Straight—Internal Seal | ||||||||||||||
| 1/8 | NPT | Male | Unthreaded Hole | __ | __ | __ | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 1 5/16" | 0000000 | 00000 |
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | __ | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 15/16" | 0000000 | 0000 |
| 3/8 | NPT | Male | Unthreaded Hole | __ | __ | __ | Brass | Brass | Water, Oil | 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 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 | For Tube ID | Tube Connection Type | Gender | Handle Material | Body Material | For Use With | Max. Pressure | Temp. Range, °F | Ht. | Each | |
Straight—External Seal | ||||||||||||||
| 1/8 | NPT | Male | Tube | 1/4" | Barbed | Male | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 1 1/2" | 0000000 | 00000 |
| 1/4 | NPT | Male | Spout | __ | __ | __ | Steel | Brass | Air, Water, Oil, Inert Gas | 150 psi @ 250° F | -65° to 250° | 1 1/2" | 0000000 | 0000 |
| 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 |