Miller-Smith Equipment
Miller-Smith Equipment 31-50-580-6 Argon Flow Gauge Regulator CGA-580
Single-stage argon flow gauge regulator with CGA-580 inlet, 50 cfh delivery and 4,000 psi supply gauge
- TypeWelding Supplies
- Single-stage argon regulator with CGA-580 cylinder connection
- 50 cfh delivery pressure range for precise flow control
- 4,000 psi supply gauge monitors cylinder pressure accurately
- Brass body with neoprene diaphragm ensures durable construction
- Includes 6 ft inert gas hose ready for immediate use
Argon Flow Gauge Regulator
The Miller-Smith Equipment 31-50-580-6 is a single-stage regulator designed for argon shielding gas supplied from a cylinder. It connects via a CGA-580 inlet and delivers a flow range up to 50 cfh for TIG or MIG welding applications. The unit includes a 6 ft x 1/4 in inert gas hose for immediate hookup.
Thermals Noise and Power Draw
As a passive mechanical regulator it generates no heat, noise or electrical draw during operation. The brass body and neoprene diaphragm manage supply pressures up to 3,500 psi while the supply gauge reads to 4,000 psi. A self-resetting safety relief valve protects the assembly from over-pressure events.
Build Quality and Connectors
The 2.0 in brass body features a nickel-plated bonnet and a Sure Seat filtered seat to resist contamination. Outlet connection is a 5/8 in.-18 RH internal thread compatible with standard argon hose fittings. UL Listed construction supports professional shop use where code compliance is required.
Highlights
- Single-stage argon regulator with CGA-580 cylinder connection
- 50 cfh delivery pressure range for precise flow control
- 4,000 psi supply gauge monitors cylinder pressure accurately
- Brass body with neoprene diaphragm ensures durable construction
- Includes 6 ft inert gas hose ready for immediate use
Specifications
| Brand | MILLER ELECTRIC |
|---|---|
| Type | Welding Supplies |
Questions about this item
How do I connect the CGA-580 inlet to my argon cylinder without leaking?
Thread the CGA-580 nut onto the cylinder valve by hand, then tighten with a wrench; the Sure Seat filtered seat seals the joint. The step people skip is opening the cylinder valve slowly to seat the diaphragm before adjusting flow.
Which parts of this regulator need periodic replacement?
The neoprene diaphragm and Buna-N seals wear over time; the self-resetting safety relief valve should be tested annually. The 6 ft x 1/4 in inert gas hose should be inspected for cracks before each use.
What limits continuous argon flow at the 50 cfh setting?
The single-stage design lets delivery pressure rise as cylinder pressure drops below 3,500 psi, so flow stability is the first limit during long runs. The 2 in supply gauge reads down to 0 psi to monitor this.
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