Miller-Smith Equipment
Miller-Smith Equipment 220-4109 High Purity Gas Regulator Two Stage CGA-580 0 to 15 psi welding
A two-stage high-purity gas regulator with CGA-580 inlet, 0 to 15 psi delivery range, brass body and stainless-steel diaphragm for argon, helium, nitrogen and inert gases
- TypeWelding Supplies
- Two-stage design gives stable pressure for clean welds
- CGA-580 inlet fits standard argon and helium cylinders
- 0 to 15 psi range suits low-pressure TIG work
- Brass body with stainless-steel diaphragm resists contamination
- 1/8 in brass tube outlet connects directly to hose
Two-Stage CGA-580 Regulator
The Miller-Smith Equipment 220-4109 is a high purity gas regulator designed for welding applications requiring precise low-pressure delivery. It handles argon, helium, nitrogen and other inert gases supplied from standard cylinders. The two-stage mechanism reduces supply pressure variation for consistent output. This unit suits fabricators and technicians who need stable flow control at the bench.
Brass Body with Stainless Diaphragm
The regulator body is machined from brass with a 2.0 in diameter and features a stainless steel diaphragm for durability. Inlet connection uses the CGA-580 standard while the outlet provides a 1/8 in brass tube fitting. A 2 1/2 in supply gauge reads up to 4,000 psi against a maximum inlet rating of 3,500 psi. The plated bonnet and filtered Sure Seat design protect the seat from contamination during cylinder changes.
Delivery Range 0 to 15 psi
The adjustable delivery range spans 0 to 15 psi for fine shielding gas control. Included gauges allow monitoring of both cylinder contents and outlet pressure. Bonnet and plated body components ship with the unit for immediate installation. This configuration does not support higher pressure processes or fuel gas services. Buyers needing elevated outlet pressures or acetylene compatibility should select a different model.
Highlights
- Two-stage design gives stable pressure for clean welds
- CGA-580 inlet fits standard argon and helium cylinders
- 0 to 15 psi range suits low-pressure TIG work
- Brass body with stainless-steel diaphragm resists contamination
- 1/8 in brass tube outlet connects directly to hose
Specifications
| Brand | MILLER ELECTRIC |
|---|---|
| Type | Welding Supplies |
Questions about this item
What does the CGA-580 inlet connection limit in practice?
The CGA-580 inlet fits standard argon, helium, inert gas and nitrogen cylinders with a maximum inlet pressure of 3,500 psi.
What outlet fitting and space does the regulator need to mount?
It has a 1/8 in brass tube fitting outlet and a 2.0 in body diameter for panel or bracket mounting.
How is the two-stage regulator installed and what step is often missed?
Thread the CGA-580 nut onto the cylinder valve, attach tubing to the 1/8 in outlet, then back out the adjusting knob before slowly opening the cylinder valve to set 0 to 15 psi delivery pressure.
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