About Precision Flow-Adjustment Valves
More
About On/Off Valves
More
Threaded On/Off Valves for Cryogenic Liquids
- Valve Type: Ball
- For Use With: Liquid Argon, Liquid Carbon Dioxide, Liquid Nitrogen
- Seal Material: Graphite
- Specifications Met: American Petroleum Institute Standard 607 - Edition 7
Use these valves in cryogenic systems to control the flow of liquid nitrogen, carbon dioxide, and argon. They have PCTFE seats that maintain a tight seal at temperatures as low as -400° F. A vented ball relieves pressure build-up from frequent temperature fluctuations during use. These valves have an extra-long stem filled with graphite packing to prevent heat transfer and leaks. The stem is long enough to fit through thick insulation in your setup. It keeps the handle at a comfortable temperature and your hands away from hazards, so you can start and stop flow in hard-to-reach areas. Their lockable handle can be fixed in place using a padlock (not included). To maintain performance and safety, these valves are shipped cleaned and bagged to avoid contamination. All are full port, so they do not restrict flow.
Fire-tested to meet American Petroleum Institute (API) 607, these valves securely isolate flammable gases such as methane and hydrogen to prevent the spread of fire.
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.
| Pipe Size  | Flow Coefficient (Cv) | Max. Pressure | Min. Temp., °F | End-to-End Lg. | For Insulation Thick. | For Max. Shackle Dia. | Features | Each | |
316 Stainless Steel Body with T-Handle | |||||||||
|---|---|---|---|---|---|---|---|---|---|
NPT Female × NPT Female | |||||||||
| 2 | 240 | 1,440 psi @ 100° F | -400° | 6 3/8" | 11 7/8" | 3/8" | Vented Ball | 0000000 | 000000000 |
High-Temperature Threaded Precision Flow-Adjustment Valves
- Valve Type: Needle
- For Use With: Water, Oil, Air, Steam
Rated for nearly twice the maximum temperature of standard threaded precision flow-adjustment valves, these can handle up to 700° F. 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. 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.
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
316 Stainless Steel Body | |||||||
|---|---|---|---|---|---|---|---|
NPT Female × NPT Female | |||||||
| 1/4 | 0.82 | 6000 psi @ 100° F | 4900 psi @ 700° F | -65° to 700° | 2 1/16" | 0000000 | 0000000 |
| 3/8 | 1.31 | 6000 psi @ 100° F | 4900 psi @ 700° F | -65° to 700° | 2 5/8" | 0000000 | 000000 |
| 1/2 | 1.31 | 6000 psi @ 100° F | 4900 psi @ 700° F | -65° to 700° | 3" | 0000000 | 000000 |
| 3/4 | 2.67 | 6000 psi @ 100° F | 4900 psi @ 700° F | -65° to 700° | 3 1/4" | 0000000 | 000000 |
| 1 | 2.67 | 6000 psi @ 100° F | 3500 psi @ 700° F | -65° to 700° | 3 5/8" | 0000000 | 000000 |
High-Pressure Threaded Precision Flow-Adjustment Valves
Often used in hydraulic and compressed air systems, these valves can withstand at least 6,000 psi. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control.
316 stainless steel valves are more corrosion resistant than brass and steel valves.
Metal-to-metal seats resist temperature fluctuations.
Valves with packing 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.
- Valve Type: Needle
- For Use With: See table
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Packing Material | End-to-End Lg. | For Use With | Each | ||
NPT Female × NPT Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Q | 3/4 | 2.67 | 10000 psi @ 100° F | -50° to 1000° | Graphite | 3 3/16" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 000000 | 0000000 |
| Q | 1 | 2.61 | 10000 psi @ 100° F | -50° to 1000° | Graphite | 3 5/8" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 0000000 | 000000 |
- Valve Type: Needle
- Seal Material: See table
- For Use With: See table
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Packing Material | End-to-End Lg. | For Use With | Each | ||
NPT Female × NPT Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Q | 3/4 | 2.67 | 10000 psi @ 100° F | -50° to 1000° | Graphite | 3 3/16" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 0000000 | 0000000 |
| Q | 1 | 2.61 | 10000 psi @ 100° F | -50° to 1000° | Graphite | 3 5/8" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 0000000 | 000000 |
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 Tube OD | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
316 Stainless Steel Body | ||||||
|---|---|---|---|---|---|---|
Yor Lok × Yor Lok | ||||||
| 1/4" | 0.65 | 6000 psi @ 100° F | -65° to 700° | 2 3/4" | 00000000 | 0000000 |
| 3/8" | 0.77 | 6000 psi @ 100° F | -65° to 700° | 3 3/16" | 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 Solder-Connect Fittings
- Valve Type: Needle
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Steam, Xenon
Solder these valves to tubing for a permanent, leak-tight connection. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control. Valves have a 316 stainless steel body for excellent corrosion resistance. All have metal-to-metal seats that resist temperature fluctuations. They 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 Tube OD | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
316 Stainless Steel Body | |||||||
|---|---|---|---|---|---|---|---|
Solder Connect × Solder Connect | |||||||
| 3/8" | 0.94 | 6000 psi @ 100° F | 4900 psi @ 700° F | -65° to 700° | 2 1/4" | 0000000 | 0000000 |
| 1/2" | 1.31 | 6000 psi @ 100° F | 4900 psi @ 700° F | -65° to 700° | 2 1/2" | 0000000 | 000000 |