About Backflow-Prevention Valves
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About Precision Flow-Adjustment Valves
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About On/Off Valves
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Precision Flow-Adjustment Valves with Yor-Lok Fittings
- Valve Type: Needle
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
For extra gripping power and a strong seal, these valves have Yor-Lok fittings with two sleeves that bite into tubing as you tighten the nut. All are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Valve body is 316 stainless steel for excellent corrosion resistance. Valves have metal-to-metal seats that resist temperature fluctuations. All have a nut that can be tightened to compress the packing if it leaks.
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.
| For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
316 Stainless Steel Body  | ||||||
|---|---|---|---|---|---|---|
Yor Lok × Yor Lok | ||||||
| 1/8" | 0.09 | 5000 psi @ 200° F | -50° to 445° | 2" | 00000000 | 0000000 |
| 1/4" | 0.37 | 5000 psi @ 200° F | -50° to 445° | 2 5/16" | 00000000 | 00000 |
| 1/4" | 0.65 | 6000 psi @ 100° F | -65° to 700° | 2 3/4" | 00000000 | 000000 |
| 3/8" | 0.73 | 5000 psi @ 200° F | -50° to 445° | 2 5/8" | 00000000 | 000000 |
| 3/8" | 0.77 | 6000 psi @ 100° F | -65° to 700° | 3 3/16" | 00000000 | 000000 |
| 1/2" | 0.73 | 5000 psi @ 200° F | -50° to 445° | 2 13/16" | 00000000 | 000000 |
| 1/2" | 1.03 | 6000 psi @ 100° F | -65° to 700° | 3" | 00000000 | 000000 |
| 3/4" | 2.67 | 6000 psi @ 100° F | -65° to 700° | 3 15/16" | 00000000 | 000000 |
Precision Flow-Adjustment Valves with Yor-Lok Fittings for Chemicals
- Valve Type: Needle
- For Use With: Oil, Acetone, Air, Ammonia, Argon, Butane, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Gasoline, Helium, Isopropyl Alcohol, Kerosene, Krypton, Methanol, Methyl Ethyl Ketone, Mineral Spirits, Natural Gas, Neon, Nitrogen, Oxygen, Propane, Soap Solutions, Sodium Hydroxide, Toluene, Xenon, Xylene
- Seal Material: PTFE Plastic
- Seat Material: 316 Stainless Steel
- Packing Material: PTFE Plastic
- Needle Material: 316 Stainless Steel
For extra gripping power and a strong seal, these valves have Yor-Lok fittings with two sleeves that bite into tubing as you tighten the nut. All are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings. The 316 stainless steel body, seal and needle, and the PTFE seat and packing can withstand aggressive and corrosive solutions in chemical-processing applications. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Threads and a hex nut below the handle allow you to mount these valves in instrument panels. All have a nut that can be tightened to compress the packing if it leaks. Valves have bubble-tight soft seats that provide a tight seal when the valve is completely closed.
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.
| For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Panel Cutout Dia. | End-to-End Lg. | Each | |
316 Stainless Steel Body | |||||||
|---|---|---|---|---|---|---|---|
Yor Lok × Yor Lok | |||||||
| 1/4" | 0.56 | 7000 psi @ 400° F | -20° to 400° | 0.87" | 2 7/8" | 0000000 | 0000000 |
| 3/8" | 0.56 | 7000 psi @ 400° F | -20° to 400° | 0.87" | 2 7/8" | 0000000 | 000000 |
| 1/2" | 0.56 | 7000 psi @ 400° F | -20° to 400° | 0.87" | 3 1/8" | 0000000 | 000000 |
Precision Flow-Adjustment Valves with Yor-Lok Fittings for Steam
- Valve Type: Needle
- For Use With: Steam
- Seal Material: PTFE Plastic
For extra gripping power and a strong seal, these valves have Yor-Lok fittings with two sleeves that bite into tubing as you tighten the nut. They are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings. These valves are often used in petroleum refineries. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Body is 316 stainless steel for excellent corrosion resistance. For installation in instrument panels, valves have threads and a hex nut below the handle. They have metal-to-metal seats that resist temperature fluctuations. All have a nut that can be tightened to compress the packing if it leaks.
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.
| For Tube ID | For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Panel Cutout Dia. | End-to-End Lg. | Each | |
316 Stainless Steel Body | ||||||||
|---|---|---|---|---|---|---|---|---|
Yor Lok × Yor Lok | ||||||||
| 1/16" | 1/4" | 0.6 | 10000 psi @ 200° F | 6200 psi @ 355° F | 7/8" | 2 7/8" | 0000000 | 0000000 |
| 1/16" | 3/8" | 0.6 | 10000 psi @ 200° F | 4800 psi @ 355° F | 7/8" | 2 7/8" | 0000000 | 000000 |
| 1/16" | 1/2" | 0.6 | 10000 psi @ 200° F | 4800 psi @ 355° F | 7/8" | 3 1/8" | 0000000 | 000000 |
Panel-Mount On/Off Valves with Yor-Lok Fittings
Easily access the handle of these valves while protecting your line behind an instrument panel. Threads and a hex nut below the handle allow you to install these valves in instrument panels. For extra gripping power and a strong seal, they have Yor-Lok fittings with 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.
Valves with lockable handle can be fixed in place using a padlock (not included).
316 stainless steel valves are more corrosion resistant than brass valves.
Fluoroelastomer seals are highly compressible, so they conform to connections to make tight seals, even when surfaces are uneven, misaligned, and dirty.
PTFE seals are the best choice for valves that are opened and closed often. The PTFE material forms a seal while remaining slippery, so you can open and close the valve frequently without the seal wearing down and failing.
PFA seals withstand high pressures and temperature changes. The plastic of the seal is nonporous, so it won’t trap gases or liquids that would weaken these seals.
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: See Table
| For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Panel Cutout Dia. | For Use With | Each | |
Brass Body—Fluoroelastomer Rubber Seal | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Yor Lok × Yor Lok | ||||||||||
| 1/8" | 0.22 | 1500 psi @ 70° F | __ | -30° to 300° | 29 | 2 3/8" | 5/8" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 0000000 | 000000 |
| 1/4" | 0.88 | 1500 psi @ 70° F | __ | -30° to 300° | 29 | 2 9/16" | 5/8" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 0000000 | 00000 |
| 3/8" | 1.57 | 1000 psi @ 70° F | __ | -30° to 300° | 29 | 2 5/8" | 5/8" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 0000000 | 00000 |
| 1/2" | 2.74 | 1000 psi @ 70° F | __ | -30° to 300° | 29 | 3 3/16" | 5/8" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 0000000 | 000000 |
Brass Body—PTFE Plastic Seal | ||||||||||
Yor Lok × Yor Lok | ||||||||||
| 1/8" | 0.2 | 3000 psi @ 70° F | __ | -30° to 400° | 29 | 3 1/8" | 3/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 0000000 | 000000 |
| 1/4" | 1.5 | 3000 psi @ 70° F | __ | -30° to 400° | 29 | 3 5/16" | 3/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 0000000 | 000000 |
| 3/8" | 1.5 | 3000 psi @ 70° F | __ | -30° to 400° | 29 | 3 7/16" | 3/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 0000000 | 000000 |
| 1/2" | 12 | 3000 psi @ 70° F | __ | -30° to 400° | 29 | 4 1/16" | 13/16" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 0000000 | 000000 |
| 3/4" | 6.5 | 3000 psi @ 70° F | __ | -30° to 400° | 29 | 4 1/16" | 13/16" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 00000000 | 000000 |
316 Stainless Steel Body—PFA Plastic Seal | ||||||||||
Yor Lok × Yor Lok | ||||||||||
| 1/16" | 0.03 | 1000 psi @ 300° F | 50 psi @ 300° F | -65° to 300° | Not Rated | 1 11/16" | 19/32" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 0000000 | 000000 |
| 1/8" | 0.2 | 1000 psi @ 300° F | 50 psi @ 300° F | -65° to 300° | Not Rated | 2" | 19/32" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 0000000 | 000000 |
| 1/4" | 0.44 | 1000 psi @ 300° F | 50 psi @ 300° F | -65° to 300° | Not Rated | 2 1/4" | 19/32" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 0000000 | 000000 |
| 3/8" | 1.02 | 1000 psi @ 300° F | 50 psi @ 300° F | -65° to 300° | Not Rated | 2 5/8" | 25/32" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 0000000 | 000000 |
| 1/2" | 10.7 | 1000 psi @ 300° F | 50 psi @ 300° F | -65° to 300° | Not Rated | 3 7/8" | 1 1/2" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 0000000 | 000000 |
316 Stainless Steel Body—PTFE Plastic Seal | ||||||||||
Yor Lok × Yor Lok | ||||||||||
| 1/16" | 0.1 | 6000 psi @ 125° F | __ | -30° to 280° | 29 | 2 3/4" | 3/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 00000000 | 000000 |
| 1/8" | 0.2 | 6000 psi @ 125° F | __ | -30° to 280° | 29 | 3 1/8" | 3/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 00000000 | 000000 |
| 1/4" | 1.5 | 6000 psi @ 125° F | __ | -30° to 280° | 29 | 3 5/16" | 3/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 00000000 | 000000 |
| 3/8" | 1.5 | 6000 psi @ 125° F | __ | -30° to 280° | 29 | 3 7/16" | 3/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 00000000 | 000000 |
| 1/2" | 12 | 6000 psi @ 125° F | __ | -30° to 280° | 29 | 4 1/16" | 13/16" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 00000000 | 000000 |
| 3/4" | 6.5 | 6000 psi @ 125° F | __ | -30° to 280° | 29 | 4 1/16" | 13/16" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 00000000 | 000000 |
| 3mm | 0.2 | 6000 psi @ 125° F | __ | -30° to 280° | 29 | 3 1/16" | 3/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 00000000 | 000000 |
| 6mm | 1.5 | 6000 psi @ 125° F | __ | -30° to 280° | 29 | 3 5/16" | 3/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 00000000 | 000000 |
- Valve Type: Ball
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
| For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | For Max. Shackle Dia. | Panel Cutout Dia. | Each | |
316 Stainless Steel Body—PTFE Plastic Seal | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Yor Lok × Yor Lok | |||||||||
| 1/4" | 1.5 | 6000 psi @ 125° F | -30° to 280° | 29 | 3 5/16" | 9/32" | 3/4" | 00000000 | 0000000 |
| 3/8" | 1.5 | 6000 psi @ 125° F | -30° to 280° | 29 | 3 7/16" | 9/32" | 3/4" | 00000000 | 000000 |
| 1/2" | 12 | 6000 psi @ 125° F | -30° to 280° | 29 | 4 1/16" | 9/32" | 13/16" | 00000000 | 000000 |
| 3/4" | 6.5 | 6000 psi @ 125° F | -30° to 280° | 29 | 4 1/16" | 9/32" | 13/16" | 00000000 | 000000 |
- Valve Type: Ball
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam
| For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temperature Range, °F | Port-to-Port Lg. | Panel Cutout Dia. | Each | |
316 Stainless Steel Body—PFA Plastic Seal | ||||||||
|---|---|---|---|---|---|---|---|---|
Yor Lok × Yor Lok | ||||||||
| 1/4" | 0.34 | 2000 psi @ 300° F | 50 psi @ 300° F | -65° to 300° | 1 1/8" | 19/32" | 00000000 | 0000000 |
| 3/8" | 0.7 | 2000 psi @ 300° F | 50 psi @ 300° F | -65° to 300° | 1 5/16" | 25/32" | 00000000 | 000000 |
Fast-Acting Panel-Mount On/Off Valves with Yor-Lok Fittings
- Valve Type: Stem
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material: PTFE Plastic
Flip the toggle to quickly turn these valves on and off. All have threads and a hex nut below the handle for installation in instrument panels. For extra gripping power and a strong seal, they have Yor-Lok fittings with two sleeves that bite into tubing as you tighten the nut. All are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings.
316 stainless steel valves are more corrosion resistant than 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.
Straight | 90° Elbow | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Panel Cutout Dia. | End-to-End Lg. | Each | Port-to-Port Lg. | Each | ||
Brass Body | ||||||||||
Yor Lok × Yor Lok | ||||||||||
| 1/8" | 0.1 | 300 psi @ 200° F | -20° to 200° | 17/32" | 1 15/16" | 0000000 | 000000 | __ | 000000 | 00 |
| 1/4" | 0.2 | 300 psi @ 200° F | -20° to 200° | 17/32" | 2 1/4" | 0000000 | 00000 | 1 1/8" | 0000000 | 000000 |
316 Stainless Steel Body | ||||||||||
Yor Lok × Yor Lok | ||||||||||
| 1/8" | 0.1 | 300 psi @ 200° F | -20° to 200° | 17/32" | 1 15/16" | 0000000 | 000000 | __ | 000000 | 00 |
| 1/4" | 0.2 | 300 psi @ 200° F | -20° to 200° | 17/32" | 2 1/4" | 0000000 | 000000 | 1 1/8" | 0000000 | 000000 |
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.
Brass valves have good corrosion resistance. Nickel-plated brass valves are more corrosion resistant than plain brass valves, and have a polished finish.
316 stainless steel valves are more corrosion resistant than plain and nickel-plated brass valves.
Lever handles are easy to open and close—they give you the most leverage of any handle type. Lockable lever handles can be fixed in place using a padlock (not included).
T-handles are our most compact option. They’re great if you want to install valves next to each other or in tight spaces.
NPT connections can be taken apart as needed for maintenance and repair.
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: Fluoroelastomer Rubber
- Valve Type: Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material: Fluoroelastomer Rubber
- Valve Type: Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material: Fluoroelastomer Rubber
- Valve Type: Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material: Fluoroelastomer Rubber
- Valve Type: Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material: PTFE Plastic
| For Tube OD | Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | For Max. Shackle Dia. | Each | |
Yor Lok × Yor Lok | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/4" | __ | 1.25 | 2000 psi @ 100° F | -30° to 400° | 3 9/16" | 11/32" | 0000000 | 000000 |
| 3/8" | __ | 2.5 | 2000 psi @ 100° F | -30° to 400° | 3 9/16" | 11/32" | 0000000 | 00000 |
| 1/2" | __ | 9.25 | 2000 psi @ 100° F | -30° to 400° | 3 3/4" | 11/32" | 0000000 | 000000 |
| 3/4" | __ | 12.65 | 2000 psi @ 100° F | -30° to 400° | 4 7/16" | 11/32" | 0000000 | 000000 |
| 1" | __ | 17.35 | 2000 psi @ 100° F | -30° to 400° | 5 1/8" | 11/32" | 0000000 | 000000 |
| 6mm | __ | 1.25 | 2000 psi @ 100° F | -30° to 400° | 3 9/16" | 11/32" | 0000000 | 00000 |
| 8mm | __ | 1.35 | 2000 psi @ 100° F | -30° to 400° | 3 9/16" | 11/32" | 0000000 | 00000 |
| 10mm | __ | 2.6 | 2000 psi @ 100° F | -30° to 400° | 3 9/16" | 11/32" | 0000000 | 000000 |
| 12mm | __ | 9.25 | 2000 psi @ 100° F | -30° to 400° | 3 3/4" | 11/32" | 0000000 | 000000 |
| 15mm | __ | 9.25 | 2000 psi @ 100° F | -30° to 400° | 3 3/4" | 11/32" | 0000000 | 000000 |
Yor Lok × NPT Male | ||||||||
| 1/4" | 1/4 | 1.25 | 2000 psi @ 100° F | -30° to 400° | 3 1/16" | 11/32" | 00000000 | 00000 |
| 3/8" | 3/8 | 2.5 | 2000 psi @ 100° F | -30° to 400° | 3 1/8" | 11/32" | 00000000 | 00000 |
| 1/2" | 1/2 | 9.25 | 2000 psi @ 100° F | -30° to 400° | 3 11/16" | 11/32" | 00000000 | 000000 |
- 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 |
On/Off Valves with Yor-Lok Fittings for Chemicals
- Valve Type: Ball
- For Use With: Acetone, Air, Ammonia, Carbon Dioxide, Diesel Fuel, Gasoline, Kerosene
- Ball Material: Monel
- Seal Material: PTFE Plastic
- Seat Material: PTFE Plastic
- Specifications Met: ASME B16.34, ASME B31.3
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. These valves have a PTFE seal and a corrosion-resistant Monel ball and body that can stand up to aggressive and corrosive chemicals such as acetone. All are standard port, so they slightly restrict flow. A red handle makes them easy to identify.
For technical drawings and 3-D models, click on a part number.
On/Off Valves with Yor-Lok Fittings for Fuel
- Valve Type: Ball
- For Use With: Diesel Fuel, Fuel Oil, Gasoline, Kerosene
- Seal Material: PTFE Plastic
- Specifications Met: ASME B16.34
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. Designed for transferring diesel fuel, fuel oil, gasoline, and kerosene, these valves have a 316 stainless steel body for excellent corrosion resistance. All are standard port, so they slightly restrict flow.
Check Valves with Yor-Lok Fittings
Two sleeves give these fittings extra gripping power. They bite into tubing as you tighten the nut to form a strong seal. All are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings. Valves open to allow flow in one direction and close when flow stops or reverses.
316 stainless steel valves are more corrosion resistant than 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.
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Piston Material: Brass
- Spring Material: 316 Stainless Steel
- Seal Material: Buna-N Rubber
| For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | End-to-End Lg. | Each | |
Yor-Lok Female Inlet × Yor-Lok Female Outlet | |||||||
|---|---|---|---|---|---|---|---|
| 1/8" | 0.22 | 3,000 psi @ 70° F | 1 | -30° to 275° | 2 3/8" | 000000 | 000000 |
| 1/4" | 0.75 | 3,000 psi @ 70° F | 1 | -30° to 275° | 2 1/2" | 000000 | 00000 |
| 3/8" | 2.09 | 2,300 psi @ 70° F | 1 | -30° to 275° | 3 3/8" | 000000 | 000000 |
| 1/2" | 3.3 | 2,200 psi @ 70° F | 1 | -30° to 275° | 4 1/8" | 000000 | 000000 |
| 3/4" | 6.01 | 1,900 psi @ 70° F | 1 | -30° to 275° | 4 3/8" | 000000 | 000000 |
| 1" | 6.56 | 1,500 psi @ 70° F | 1 | -30° to 275° | 4 5/8" | 000000 | 000000 |
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Piston Material: 316 Stainless Steel
- Spring Material: 302 Stainless Steel
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | End-to-End Lg. | Each | |
Yor-Lok Female Inlet × Yor-Lok Female Outlet | ||||||||
|---|---|---|---|---|---|---|---|---|
| __ | 1/8" | 0.1 | 3,000 psi @ 70° F | 0.33 | -10° to 375° | 2 1/4" | 00000000 | 0000000 |
| __ | 1/4" | 0.47 | 3,000 psi @ 70° F | 0.33 | -10° to 375° | 2 3/8" | 00000000 | 00000 |
| __ | 3/8" | 1.47 | 2,300 psi @ 70° F | 0.33 | -10° to 375° | 2 1/2" | 00000000 | 000000 |
| __ | 1/2" | 1.68 | 2,200 psi @ 70° F | 0.33 | -10° to 375° | 3" | 00000000 | 000000 |
| __ | 3/4" | 4.48 | 1,900 psi @ 70° F | 0.33 | -10° to 375° | 3 1/2" | 00000000 | 000000 |
| __ | 1" | 4.48 | 1,500 psi @ 70° F | 0.33 | -10° to 375° | 4 3/4" | 00000000 | 000000 |
| __ | 6mm | 0.47 | 3,000 psi @ 70° F | 0.33 | -10° to 375° | 2 3/8" | 00000000 | 000000 |
| __ | 10mm | 1.68 | 3,000 psi @ 70° F | 0.33 | -10° to 375° | 2 1/2" | 00000000 | 000000 |
| __ | 12mm | 1.68 | 3,000 psi @ 70° F | 0.33 | -10° to 375° | 3 1/16" | 00000000 | 000000 |
NPT Male Inlet × Yor-Lok Female Outlet | ||||||||
| 1/4 | 1/4" | 0.47 | 3,000 psi @ 70° F | 0.33 | -10° to 375° | 2 1/8" | 00000000 | 000000 |
| 3/8 | 3/8" | 1.47 | 3,000 psi @ 70° F | 0.33 | -10° to 375° | 2 1/16" | 00000000 | 000000 |
| 1/2 | 1/2" | 1.68 | 3,000 psi @ 70° F | 0.33 | -10° to 375° | 2 7/8" | 00000000 | 000000 |