Miller-Smith Equipment
Miller-Smith Equipment Helium/Nitrogen Regulator CGA-580 50 psi
Two-stage cylinder regulator for helium, nitrogen and inert gases with CGA-580 inlet, 50 psi delivery range and 4,000 psi supply gauge
- TypeWelding Supplies
- Two-stage design delivers stable 50 psi outlet pressure
- CGA-580 inlet connects directly to helium or nitrogen cylinders
- Solid brass body with nickel-plated bonnet resists corrosion
- UL Listed construction meets recognised safety standards
- Sure Seat filtered seat reduces contamination risk
Helium/Nitrogen Regulator CGA-580
The Miller-Smith Equipment regulator delivers helium and nitrogen from a high-pressure cylinder at a controlled 50 psi outlet pressure. It uses a two-stage design with a solid brass body and neoprene diaphragm for consistent flow in welding and inert gas shielding applications. The CGA-580 inlet connects directly to standard gas cylinders.
Sustained Flow Stability
The two-stage construction reduces outlet pressure variation as the cylinder empties, maintaining steadier delivery than single-stage units during long welding runs. A 4,000 psi supply gauge and 2-inch delivery gauge let the operator monitor both cylinder contents and working pressure at a glance. The nickel-plated bonnet and Sure Seat filtered seat resist contamination over extended use.
Upgrade From Single-Stage Units
This regulator replaces basic single-stage models when a fabricator needs tighter pressure control across a full cylinder. The jump is worth it for TIG or MIG jobs where pressure drift affects bead quality or gas coverage. It is not for applications requiring outlet pressures above 50 psi or for gas services other than helium, nitrogen or similar inert gases.
Highlights
- Two-stage design delivers stable 50 psi outlet pressure
- CGA-580 inlet connects directly to helium or nitrogen cylinders
- Solid brass body with nickel-plated bonnet resists corrosion
- UL Listed construction meets recognised safety standards
- Sure Seat filtered seat reduces contamination risk
Specifications
| Brand | MILLER ELECTRIC |
|---|---|
| Type | Welding Supplies |
Questions about this item
Does the Miller-Smith Helium/Nitrogen regulator run noisy or hot when left on all day?
The two-stage brass body with neoprene diaphragm delivers steady 50 psi flow without mechanical noise or heat build-up during continuous use.
What cylinder fitting must I already have for the CGA-580 inlet to connect?
You need a helium or nitrogen cylinder equipped with a standard CGA-580 valve outlet rated for up to 3,000 psi supply pressure.
Will the 5/8-18 RH internal outlet thread onto my existing TIG torch hose?
Yes — the 5/8 in.-18 RH internal outlet matches the common inert-gas hose fitting used on most TIG and MIG setups.
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