About Flow-Adjustment Valves
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Threaded Flow-Adjustment Valves for Cryogenic Liquid
- Valve Type: Globe
- For Use With: Liquid Argon, Liquid Carbon Dioxide, Liquid Nitrogen
- Seal Material: Glass-Filled PTFE Plastic
- Specifications Met: CGA G-4.1
Designed to withstand the extreme cold of liquid argon, liquid carbon dioxide, and liquid nitrogen, these valves are cleaned and bagged to meet CGA G-4.1 standards for oxygen service. They gradually open and close with multiple turns of the wheel handle to adjust and regulate flow. All have a rising stem that lifts as the valve opens and lowers as the valve closes to provide a visual indication of whether flow is on or off.
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 | Temperature Range, °F | End-to-End Lg. | Overall Ht. | Stem Type | Each | |
Bronze Body | ||||||||
|---|---|---|---|---|---|---|---|---|
NPT Female × NPT Female | ||||||||
| 1/2 | 3.3 | 600 psi @ 150° F | -325° to 150° | 2 5/8" | 8 5/16" | Rising | 00000000 | 0000000 |
| 3/4 | 6.3 | 400 psi @ 150° F | -325° to 150° | 3 3/16" | 10" | Rising | 00000000 | 000000 |
| 1 | 10 | 600 psi @ 150° F | -325° to 150° | 3 3/4" | 11 13/16" | Rising | 00000000 | 000000 |
| 1 1/2 | 26 | 400 psi @ 150° F | -325° to 150° | 4 3/4" | 16 1/2" | Rising | 00000000 | 000000 |
| 2 | 45 | 600 psi @ 150° F | -325° to 150° | 5 3/4" | 16 3/4" | Rising | 00000000 | 00000000 |
Stainless Steel Body | ||||||||
NPT Female × NPT Female | ||||||||
| 1/2 | 5 | 720 psi @ 150° F | -325° to 150° | 3 1/16" | 11 13/16" | Rising | 00000000 | 000000 |
| 1 | 14 | 720 psi @ 150° F | -325° to 150° | 3 15/16" | 12 1/16" | Rising | 00000000 | 000000 |
| 1 1/2 | 53 | 720 psi @ 150° F | -325° to 150° | 5" | 12 5/16" | Rising | 00000000 | 000000 |
| 2 | 28.3 | 720 psi @ 150° F | -325° to 150° | 5 15/16" | 12 5/8" | Rising | 00000000 | 00000000 |
Compact Threaded Flow-Adjustment Valves for Cryogenic Liquid
- Valve Type: Globe
- For Use With: Liquid Argon, Liquid Carbon Dioxide, Liquid Nitrogen
- Specifications Met: CGA G-4.1
Often used with portable cryogenic cylinders, these valves are a third of the height of other valves for cryogenic liquid. They are designed to withstand the extreme cold of liquid argon, liquid carbon dioxide, and liquid nitrogen; all are cleaned and bagged to meet CGA G-4.1 standards for oxygen service. These valves gradually open and close with multiple turns of the wheel handle to adjust and regulate flow. They have a nonrising stem that stays in the same position whether the valve is open or 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.
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Stem Type | Each | |
Brass Body | |||||||
|---|---|---|---|---|---|---|---|
NPT Female × NPT Female | |||||||
| 1/4 | 1 | 600 psi @ 165° F | -320° to 165° | 2 1/2" | Nonrising | 00000000 | 0000000 |
| 3/8 | 1.8 | 600 psi @ 165° F | -320° to 165° | 2 1/2" | Nonrising | 00000000 | 000000 |
| 1/2 | 1.8 | 600 psi @ 165° F | -320° to 165° | 2 1/2" | Nonrising | 00000000 | 000000 |