Miller-Smith Equipment
Miller-Smith Equipment Gas Regulator Single Stage CGA-300 15 psi
Single-stage acetylene regulator with CGA-300 inlet, 15 psi delivery and UL listing
- TypeWelding Supplies
- Delivers consistent 15 psi acetylene flow for stable welding performance
- Single-stage CGA-300 inlet connects directly to standard acetylene cylinders
- Brass body with stainless-steel diaphragm resists corrosion and extends service life
- HB190 hard-hat gauge guard protects gauges from impact damage
- UL-listed design meets recognised safety standards for general-purpose use
Single-Stage Acetylene Regulator
The Miller-Smith Equipment gas regulator is built for welders who need a reliable single-stage unit for acetylene cylinders. It connects to a CGA-300 inlet and delivers a fixed 15 psi outlet pressure for general-purpose cutting and heating tasks.
CGA-300 Inlet Compatibility
This regulator only fits cylinders equipped with a CGA-300 valve outlet. Buyers using any other cylinder connection standard cannot attach the unit without a separate adapter that is not included.
HB190 Gauge Guard and Relief Valve
The bundled HB190 hard-hat gauge guard shields the 2 1/2-inch supply-pressure gauge from impact damage. An external relief valve adds over-pressure protection, while the nickel-plated bonnet and stainless-steel diaphragm resist corrosion during daily shop use.
Highlights
- Delivers consistent 15 psi acetylene flow for stable welding performance
- Single-stage CGA-300 inlet connects directly to standard acetylene cylinders
- Brass body with stainless-steel diaphragm resists corrosion and extends service life
- HB190 hard-hat gauge guard protects gauges from impact damage
- UL-listed design meets recognised safety standards for general-purpose use
Specifications
| Brand | MILLER ELECTRIC |
|---|---|
| Type | Welding Supplies |
Questions about this item
How does the 15 psi delivery pressure work when the regulator is attached to an acetylene cylinder?
The single-stage design reduces cylinder pressure directly to a 0–15 psi outlet range, so the torch receives a steady low-pressure flow without a second reduction stage.
What does the CGA-300 inlet connection limit in practice?
The CGA-300 nut and nipple only fit acetylene cylinders rated up to 400 psi, preventing accidental connection to oxygen or other gas tanks.
What mounting clearance does the 3.25 in body diameter and HB190 gauge guard require?
The brass body measures 3.25 in across and the HB190 hard-hat guard adds height over the 2 1/2 in gauges, so allow at least that width and extra vertical space on the cylinder valve.
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