Harris 425 Single Stage Welding Gas Regulators
The sturdy Harris 425 single-stage welding regulator from WeldingMart can handle all standard industry gases, and we carry several pressure-range models. The Harris 425 regulator is engineered to accommodate most welding work. This regulator has a tamper-resistant self-reseating internal HP (high pressure) safety valve, a one-piece encapsulated PTFE Teflon seat design, bronze adjusting screw, and forged brass cover and body.
Choose a Harris 425 single-stage regulator for use with carbon dioxide, argon, argon helium, ethylene, helium, hydrogen, industrial air, LPG propane, medical air, oxygen or nitrogen gas-shielded welding wire. This U.L.-listed Harris 425 single-stage gas pressure regulator meets CGA E-4 gas pressure regulator standards. It has 2 1/2 dual-scale gauges.
Part Number | Model Number | Capacity | Stage | Gauges | Gas | Inlet | Outlet | Certifications |
---|---|---|---|---|---|---|---|---|
3000816 | 425-15-300 | Medium/Heavy Duty | Single | 2.5" Brass | Acetylene | CGA 300 | 9/16”-18 LH | UL; CGA E-4 |
3000815 | 425-15-510 | Medium/Heavy Duty | Single | 2.5" Brass | Acetylene | CGA 510 | 9/16”-18 LH | UL; CGA E-4 |
3000767 | 425-125-580 | Medium/Heavy Duty | Single | 2.5" Brass | Argon Helium Nitrogen | CGA 580 | 9/16”-18 RH | UL; CGA E-4 |
3000773 | 425-200-580 | Medium/Heavy Duty | Single | 2.5" Brass | Argon Helium Nitrogen | CGA 580 | 9/16”-18 RH | UL; CGA E-4 |
3000837 | 425-15-580 | Medium/Heavy Duty | Single | 2.5" Brass | Argon Helium Nitrogen | CGA 580 | 9/16”-18 RH | UL; CGA E-4 |
3000843 | 425-50-580 | Medium/Heavy Duty | Single | 2.5" Brass | Argon Helium Nitrogen | CGA 580 | 9/16”-18 RH | UL; CGA E-4 |
3000775 | 425-125-320 | Medium/Heavy Duty | Single | 2.5" Brass | Carbon Dioxide | CGA 320 | 9/16”-18 RH | UL; CGA E-4 |
3000787 | 425-125-350 | Medium/Heavy Duty | Single | 2.5" Brass | Ethylene | CGA 350 | 9/16”-18 LH | UL; CGA E-4 |
3000765 | 425-125A-580 | Medium/Heavy Duty | Single | 2.5" Brass | Helium | CGA 580 | 9/16”-18 RH | UL: CGA E-4 |
3000784 | 425-50A-350 | Medium/Heavy Duty | Single | 2.5" Brass | Hydrogen | CGA 350 | 9/16”-18 LH | UL; CGA E-4 |
3000794 | 425-125A-350 | Medium/Heavy Duty | Single | 2.5" Brass | Hydrogen | CGA 350 | 9/16”-18 LH | UL; CGA E-4 |
3000821 | 452-125-590 | Medium/Heavy Duty | Single | 2.5" Brass | Industrial Air | CGA 590 | 9/16”-18 RH | UL; CGA E-4 |
3000713 | 425-50-510P | Medium/Heavy Duty | Single | 2.5" Brass | LPG Propane | CGA 510P | 9/16”-18 LH | UL; CGA E-4 |
3000762 | 425-125-346 | Medium/Heavy Duty | Single | 2.5" Brass | Medical Air | CGA 346 | 9/16”-18 RH | UL CGA E-4 |
3000764 | 425-200-346 | Medium/Heavy Duty | Single | 2.5" Brass | Medical Air | CGA 346 | 9/16”-18 RH | UL; CGA E-4 |
3000848 | 425-15-555 | Medium/Heavy Duty | Single | 2.5" Brass | Nitrogen | CGA 555 | 9/16”-18 RH | UL; CGA E-4 |
3000714 | 425-125-540 | Medium/Heavy Duty | Single | 2.5" Brass | Oxygen | CGA 540 | 9/16”-18 RH | UL; CGA E-4 |
3000795 | 425-50-540 | Medium/Heavy Duty | Single | 2.5" Brass | Oxygen | CGA 540 | 9/16”-18 RH | UL; CGA E-4 |
3000796 | 425-200-540 | Medium/Heavy Duty | Single | 2.5" Brass | Oxygen | CGA 540 | 9/16”-18 RH | UL; CGA E-4 |