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H2051B-580 - Smith Economy Series Flowmeter Regulator for Argon, CO2, and Helium

Packaging: 1 per ea
$230.17/ea $151.27/1 per ea only $151.27/eaSave 34%

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OVERVIEW

Smith Economy Flowmeter Regulator H2051B-580 for MIG & TIG Welding

Achieve consistent, high-quality welds with the Smith Economy Flowmeter Regulator H2051B-580. Whether you are laying down beads on mild steel with a MIG setup or performing precision TIG work on aluminum, accurate gas flow is essential for preventing porosity and ensuring a clean weld. This regulator is designed to deliver that precision in an affordable, easy-to-use package that doesn't sacrifice durability. It is the perfect solution for welders who need a reliable flowmeter that can handle the rigors of daily shop use without the high price tag of heavy-duty industrial models.

One of the standout features of this regulator is its shatter-resistant polycarbonate flow tube. We all know that accidents happen in the shop—cylinders get bumped, and tools get dropped. Unlike fragile glass tubes, the polycarbonate construction of the H2051B-580 can withstand impact, keeping your equipment operational and your downtime to a minimum. The tube features high-visibility markings with a triple scale for Argon, Helium, and CO2. This means you can use the same regulator for different tanks and processes; simply rotate the tube to the scale matching your gas, and you are ready to weld.

The H2051B-580 is built for ease of use. The precision flow-adjustment valve locks in your desired setting, preventing drift during welding. The flow ball is easily visible, and the tube can be rotated to face you, so you never have to crane your neck behind a tank to check your flow rate. It connects via a standard CGA 580 fitting, the industry standard for mixed gases and pure argon. The internal mechanism features a packless O-ring seal, which reduces wear and tear and keeps the regulator functioning smoothly for years.

Safety is never an afterthought with Smith Equipment. This unit includes a built-in rupture disc designed to vent excess pressure safely if a high-pressure surge occurs, protecting the flow tube from exploding. This added layer of safety gives you confidence when opening cylinder valves. Combined with the backing of the Miller True Blue 3-Year Warranty, the Smith H2051B-580 Economy Flowmeter Regulator is a smart, dependable choice for hobbyists and professional welders alike who demand quality and value.

Additional Information
Gas Type:Argon, CO2, Helium, Argon/CO2 Mix
CGA Connection:CGA 580
Flow Range:0-60 SCFH (Argon), 0-160 SCFH (Helium), 0-50 SCFH (CO2)
Outlet Pressure:50 PSI
Cga Fitting:CGA 580
Used On Which Gas:Argon/Weldmix, CO2, Helium
Item:Flow Regulator
Brand:Smith Equipment
Max Outlet:50 PSI
Packaging Description:1 per ea

INCLUDED

  • Smith H2051B-580 Economy Flowmeter Regulator
  • Owner's Manual

APPLICATIONS

  • MIG (GMAW) Welding
  • TIG (GTAW) Welding
  • Shielding Gas Regulation
  • Light Fabrication
  • Automotive Repair
  • Maintenance and Repair Operations (MRO)
  • Vocational Training Schools

FAQ

This regulator is designed for use with Argon, Helium, and CO2 (or Argon/CO2 mixes). The flow tube has three distinct scales calibrated for these specific gases.

The H2051B-580 features a CGA 580 inlet connection. This is the standard fitting for Argon, Helium, and Nitrogen cylinders in the United States.

The flow tube is manufactured from shatter-resistant polycarbonate resin. This material is much more durable than glass and resists breakage from impact.

Yes, it includes a built-in rupture disc. This safety feature is designed to burst and vent pressure if the regulator experiences a dangerous high-pressure surge, protecting the flow tube from damage.

No, this is a flowmeter regulator. The outlet pressure is preset (typically at 50 PSI) to ensure accurate flow readings. You use the knob to adjust the flow rate (SCFH), not the pressure.

This product is covered by the Miller True Blue 3-Year Warranty, which covers defects in material and workmanship.

The polycarbonate tube can be rotated. Simply turn the outer tube cover until the scale for your specific gas (Argon, Helium, or CO2) is facing you.

While it is an 'Economy' model, it is built by Smith/Miller and is suitable for light to medium industrial fabrication, repair shops, and general manufacturing. For extremely high-volume or abusive environments, a heavy-duty series might be preferred, but this unit performs well in most professional settings.

CATALOGUE & SPEC SHEETS

Spec Sheet
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