The Harris Model 355-2 Flowmeter Regulator is a professional-grade, pressure-compensated regulator designed for precise shielding gas delivery in MIG/GMAW and TIG/GTAW welding operations. The pressure-compensated flowmeter provides accurate, repeatable flow readings regardless of inlet pressure variation — a key advantage over non-compensated designs in high-usage shop environments. Available in gas-specific configurations for argon, Ar/CO₂ blends, Ar/He mixtures, and CO₂, with CGA-580 and CGA-320 cylinder connections, and as complete Shielding Gas Kit assemblies.
- 3100207 – Compact pressure-compensated flowmeter for Argon/CO₂, CGA-580
- 3100211 – Argon flowmeter regulator Shielding Gas Kit, CGA-580, 10-piece
- 3100204 – Compact flowmeter for Argon, Helium, and Nitrogen, CGA-580
- 3100200 – Standard pressure-compensated flowmeter for Argon/CO₂, CGA-580
- 3100201 – Compensated flowmeter for Argon/CO₂, CGA-320 connection
- 3100338 – Argon/Helium flowmeter regulator Shielding Gas Kit, CGA-580, 10-piece
- 4400234 – CO₂ flowmeter regulator Shielding Gas Kit, CGA-320, 10-piece
- Pressure-compensated flowmeter delivers consistent flow readings across varying cylinder inlet pressures
- CGA-580 (argon/inert gas) and CGA-320 (CO₂) connection options to match cylinder valves
- Gas-specific models for pure argon, Ar/CO₂, Ar/He mixtures, and nitrogen
- Shielding Gas Kit versions include hose assembly for ready-to-install operation
- Compact body design saves cylinder station space without sacrificing full functionality
- Clear flow tube for precise CFH/LPM settings across MIG and TIG process requirements
- Durable brass construction with quality seals for long service life
- MIG/GMAW welding with Ar/CO₂ shielding gas on mild steel and stainless steel
- TIG/GTAW welding using pure argon on aluminum, titanium, and stainless steel
- TIG/GTAW with argon/helium mixtures for improved penetration on thick materials
- FCAW-G welding requiring CO₂ or mixed-gas shielding
- Fabrication shops and training facilities managing multiple shielding gas types
Harris Products Group's Model 355-2 pressure-compensated design eliminates the flow rate error common in non-compensated regulators, protecting weld quality from first pass to last. With gas-specific models for every common shielding gas and complete kit options for fast installation, the 355-2 is the dependable shielding gas management solution for professional welding operations of any scale.