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Miller Enterprises 16531 flowmeter regulator with resin tube and hose ball for Argon CO2 Helium

Miller Enterprises

Miller Enterprises 16531 Flowmeter Regulator Argon CO2 Helium Single Stage

SKU CH-Q3Y7-YY2KS

A single-stage flowmeter regulator delivering up to 55 scfh for argon and CO2 or 160 scfh for helium at 30 psig inlet pressure

  • TypeGas Regulators
  • Accurate gas delivery for argon and CO₂ up to 55 scfh
  • Helium flow capacity reaches 160 scfh for specialised applications
  • Single-stage design provides consistent outlet pressure from pipeline supply
  • 1/4 in NPT female inlet fits standard gas lines
  • Includes hose ball and resin tube for immediate setup

Miller 16531 Flowmeter Regulator

The Miller Enterprises 16531 is a single-stage flowmeter regulator designed for MIG and TIG welding applications. It handles argon, carbon dioxide, and helium supply from a pipeline source. The unit mounts directly to a 1/4 inch female NPT inlet connection. This tool suits welders who need visible flow confirmation for shielding gas.

Fixed 30 psig inlet with calibrated tube

The regulator accepts a maximum inlet pressure of 30 psig and delivers gas through a 5/8 inch -18 UNF female outlet. Argon and carbon dioxide flow rates reach a maximum of 55 scfh, while helium reaches 160 scfh. A resin flow tube with a floating ball provides direct visual indication of the shielding gas rate during operation.

Includes hose ball and resin tube

The package supplies a resin flow tube and a hose ball fitting for immediate connection to a welding torch or hose assembly. No additional flow measurement accessories are required for standard pipeline installations. The single-stage design does not compensate for supply pressure fluctuations as a dual-stage model would.

Highlights

  • Accurate gas delivery for argon and CO₂ up to 55 scfh
  • Helium flow capacity reaches 160 scfh for specialised applications
  • Single-stage design provides consistent outlet pressure from pipeline supply
  • 1/4 in NPT female inlet fits standard gas lines
  • Includes hose ball and resin tube for immediate setup

Specifications

BrandMILLER ELECTRIC
TypeGas Regulators

Questions about this item

How do I install the 16531 flowmeter regulator onto a 1/4 in NPT pipeline inlet, and what step is commonly missed?

Thread the female 1/4 in NPT inlet onto the pipeline supply; the step often missed is verifying the supply pressure does not exceed 30 psig before opening the valve.

What maintenance or replacement will the resin tube and hose ball need over time?

Inspect the resin tube regularly for cracks or clouding and replace it if damaged; check the hose ball for wear or leaks and swap it when the seal degrades.

At what flow limit does the regulator cap out first when running argon or CO2 continuously?

Both argon and carbon dioxide max out at 55 scfh, so that ceiling is reached before the 160 scfh helium limit during sustained use.

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