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Harris 301 flow gauge regulator CGA-580 brass body pressure gauge flow meter knob

Harris

Harris 301-AR60-580 Flow Gauge Regulator, CGA-580, 60 scfh

SKU CH-T3ZN-MW66V

Single-stage flow gauge regulator for argon with a CGA-580 inlet and 60 scfh maximum flow

  • TypeWelding Supplies
  • Single-stage design delivers consistent argon flow up to 60 scfh
  • CGA-580 inlet connects directly to standard argon cylinders
  • Female 5/8 in.-18 UNF outlet fits common welding hoses
  • 3,000 psig maximum inlet pressure handles full cylinder pressure
  • 4,000 psig maximum outlet rating provides high-pressure safety margin

Harris 301 Flow Gauge Regulator

The Harris 301-AR60-580 is a single-stage flow gauge regulator built for argon shielding gas. It connects to a CGA-580 cylinder valve and delivers adjustable flow up to 60 scfh for general-purpose welding applications.

CGA-580 Inlet and 60 scfh Flow Range

The regulator mounts directly to a cylinder with a female 0.965-14 NGO right-hand inlet thread. Its outlet uses a female 5/8-18 UNF connection, and the maximum inlet pressure is rated at 3,000 psig while the outlet pressure can reach 4,000 psig.

Installation Notes and Common Issues

Thread the inlet onto the cylinder valve by hand before tightening with a wrench to avoid cross-threading the 0.965-14 NGO connection. A frequent issue is debris in the cylinder outlet damaging the regulator seat, so crack the valve briefly before attaching the unit.

Highlights

  • Single-stage design delivers consistent argon flow up to 60 scfh
  • CGA-580 inlet connects directly to standard argon cylinders
  • Female 5/8 in.-18 UNF outlet fits common welding hoses
  • 3,000 psig maximum inlet pressure handles full cylinder pressure
  • 4,000 psig maximum outlet rating provides high-pressure safety margin

Specifications

BrandHarris
TypeWelding Supplies

Questions about this item

What does the 60 scfh argon flow rate mean for my welding setup?

The regulator delivers up to 60 standard cubic feet per hour of argon, giving you a steady shielding-gas flow for TIG or MIG work without needing a separate flowmeter.

How does the CGA-580 inlet with a 0.965-14 NGO thread affect cylinder compatibility?

The CGA-580 nut and 0.965-14 right-hand NGO thread mate directly to standard argon cylinders, so the regulator threads on without adapters.

What mounting clearance does the single-stage body need on the cylinder valve?

The single-stage flow-gauge body mounts straight onto the cylinder valve outlet; its female 5/8-18 UNF outlet points sideways for hose attachment.

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