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

Packaging: 1 per ea
$230.17/ea $152.36/1 per ea only $152.36/eaSave 34%

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SKU: MILH2051B-580 Categories: ,

OVERVIEW

Smith H2051B-580 Economy Flowmeter Regulator: Precision and Durability

The Smith H2051B-580 Economy Flowmeter Regulator is engineered to provide precise shielding gas regulation for industrial MIG and TIG welding applications. Designed with the professional fabricator in mind, this unit combines a compact form factor with robust construction features that ensure longevity even in demanding shop environments. The core of this regulator is its shatter-resistant polycarbonate flow tube, which offers superior durability compared to traditional glass tubes, significantly reducing the risk of breakage during operation or cylinder changeovers.

Versatility is a key component of the H2051B-580's design. The flow tube features a triple-scale readout, calibrated specifically for Argon, Helium, and Argon/CO2 mixtures. This allows welders to switch between different shielding gases and welding processes without the need for multiple regulators or complex conversion calculations. The tube is also repositionable, allowing the operator to rotate the scale for the best possible viewing angle regardless of the cylinder's orientation. With a flow range of 0-60 SCFH for Argon, 0-160 SCFH for Helium, and 0-50 SCFH for CO2, this regulator covers the vast majority of standard welding requirements.

Maintenance and safety are critical in gas regulation equipment. Smith Equipment has incorporated a packless O-ring flow tube seal into this model, which creates a tight seal while reducing the maintenance typically associated with packed valves. Furthermore, a built-in rupture disc is integrated into the body to protect the flow tube and the operator from inadvertent high-pressure inlet surges. If a surge occurs, the disc ruptures to vent pressure safely, preventing catastrophic failure of the tube. Note that the rupture disc is a safety consumable and must be replaced if deployed.

The precision flow-adjustment valve allows for smooth and accurate setting of gas flow rates, ensuring optimal shielding coverage and reducing gas waste. The unit comes equipped with a standard CGA 580 inlet connection, making it compatible with standard industrial cylinders for Argon, Nitrogen, and Helium. Backed by the Miller True Blue 3-Year Warranty, the Smith H2051B-580 represents a reliable investment for any welding operation seeking consistent performance and value.

Additional Information
Gas Type:Argon, Argon/CO2 Mix, CO2, Helium
CGA Connection:CGA-580
Flow Range:0-160 SCFH (Helium), 0-50 SCFH (CO2), 0-60 SCFH (Argon)
CGA Fitting:cga580
Used On Which Gas:Argon or Weldmix, CO2, helium
Item:Flow Regulator
Max Outlet:50psi
----- new values below ----
cga-fitting:cga580
used-on-which-gas:Argon or Weldmix, CO2, Helium
item:flow-regulator
brand:Smith Equipment
max-outlet:50psi
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

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