Harris GP402 CGA 580 Nitrogen, Argon and Helium Regulator
The Harris GP402 is an economy two-stage regulator with a CGA 580 inlet for inert gases: nitrogen, argon and helium. It is Harris’s general purpose brass regulator, sold here in our Economy Application Regulators, and it is an economical way to get steady two-stage delivery for low purity gases.
Gas service: CGA 580
CGA 580 is the most common laboratory cylinder connection. It fits nitrogen, argon and helium cylinders, as well as the rare gases krypton, neon and xenon, at cylinder pressures up to 3000 psig. Higher-pressure cylinders use different connections (for example CGA 680 or 677), so check the valve before you order.
The Harris GP402 is great for low to medium pressure inert gas applications such as purging and pressure testing.
Specifications
- Two-stage design, brass body with painted die-cast bonnet
- Neoprene diaphragm, which Harris notes gives greater sensitivity
- PTFE seat, protected by a 10 micron nickel-plated sintered bronze inlet filter
- Tamper-proof, self-reseating internal relief valve
- 2″ dual-scale gauges (psi/kPa)
- Outlet pressure: selectable 0-15, 0-50, 0-125 or 0-250 psig (choose above); the 0-125 psig range has a 30″Hg vacuum to 200 psi outlet gauge
- Maximum inlet pressure 3000 psig
- Flow coefficient Cv 0.15; delivery pressure changes only about 0.04 psig for every 100 psig drop in cylinder pressure
- Purity: up to grade 4.0 (99.99%), for low purity applications
- 1/4″ MNPT pipe thread outlet
- Conforms to CGA E-4
Typical applications
- Purging and pressure testing
- Shielding and other industrial-grade, non-corrosive gas supply
- Low to medium pressure lab uses where neoprene is acceptable
The dual stage regulator maintains gas pressure stability by regulating the pressure twice before delivering gas to your equipment.
What’s included
- Harris GP402 two-stage regulator with CGA 580 inlet
- 2″ dual-scale inlet and delivery gauges
- 1/4″ MNPT outlet
Other ranges and models
Choose your outlet pressure from the Outlet Pressure dropdown above: 0-15, 0-50, 0-125 or 0-250 psig. The 0-125 psig range covers most laboratory delivery pressures. Need a different range? Contact us for a quote.
Compare the same CGA 580 connection in other Harris series:
- Harris HP702 (high purity, up to grade 5.0), CGA 580
- Harris HP722C (ultra high purity, grade 5.0), CGA 580
- Harris HP742 (316L stainless, grade 6.0 and corrosives), CGA 580
Not sure this is the right regulator? Read our Regulator Buying Guide, check the CGA Charts, or call 1-888-641-2267 and our team will match the regulator to your application.
