About Gas Regulators
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Easy-Read Tank-Mount Pressure-Regulating
Valves with Flowmeter for Inert Gas
Flowmeters let you see the gas flow rate from a distance. These valves automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. All have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. They have a gauge for monitoring inlet pressure from the tank.
Single-stage valves reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank. They’re best for applications where a constant outlet pressure isn’t critical.
Valves with one flowmeter are for one piece of equipment on a tank. The flowmeter has a single scale.
Adapters (sold separately) change 5/8"-18 outlets to 9/16"-18 male connections, and vice versa.
Inlet | Outlet | Material | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CGA Number  | Location | Thread Direction | Pressure Gauge Range, psi | Stage | Thread Size | Location | Thread Direction | Flow Range, scfh | Number of Flowmeters | Body | Seal | Diaphragm | Each | |
UNF Female Outlet × NGO Male Inlet | ||||||||||||||
| CGA 580 | Side | Right Hand | 0 to 4,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 60 (Argon), 0 to 60 (Argon/Carbon Dioxide Blend), 0 to 50 (Carbon Dioxide), 0 to 160 (Helium) | 1 | Brass | Buna-N | Brass | 000000000 | 0000000 |
| Optional Adapter | 00000000 | Each | 000000 |
Inlet | Outlet | Material | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CGA Number | Location | Thread Direction | Pressure Gauge Range, psi | Stage | Thread Size | Location | Thread Direction | Flow Range, scfh | Number of Flowmeters | Body | Seal | Diaphragm | Each | |
UNF Female Outlet × NGO Female Inlet | ||||||||||||||
| CGA 320 | Side | Right Hand | 0 to 4,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 70 | 1 | Brass | PTFE | Neoprene | 00000000 | 0000000 |
| Optional Adapter | 00000000 | Each | 000000 |
Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas
- For Use With: See Table
- Temperature Range: -20° to 120° F
Commonly used in TIG welding where gas flow/coverage is a concern, these valves measure the gas flow rate in addition to regulating pressure. They automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. All have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. Valves have a gauge to monitor the outlet flow rate and a second gauge to monitor inlet pressure from the tank. They are single stage and reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank.
Inlet | Outlet | Material | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CGA Number | Location | Thread Direction | Pressure Gauge Range, psi | Stage | Thread Size | Location | Thread Direction | Flow Range, scfh | Flow Gauge Included | Body | Seal | Diaphragm | Includes | Each | |
UNF Female Outlet × NGO Female Inlet | |||||||||||||||
| CGA 320 | Side | Right Hand | 0 to 4,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 60 | Yes | Brass | PTFE | Neoprene | __ | 0000000 | 0000000 |
| CGA 320 | Side | Right Hand | 0 to 4,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 60 | Yes | Brass | PTFE | Neoprene | 10-ft. long, 3/16" dia. hose with 5/8"-18 male fittings on both ends | 0000000 | 000000 |
| CGA 320 | Side | Right Hand | 0 to 4,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 100 | Yes | Brass | PTFE | Neoprene | __ | 0000000 | 000000 |