R-422B (NU-22) Refrigerant Gas | Alper Refrigerant Gas — Wholesale HFC Refrigerant

HFC/HCFC blend for R-22 retrofit with excellent capacity match. Minimal system modifications required for conversion.

🔄 R‑422B (NU‑22B) – HFC Zeotropic Blend for R‑22 Retrofits

Category: Hydrofluorocarbon (HFC) – zeotropic blend

CAS No.:

R‑125: 354‑33‑6

R‑134a: 811‑97‑2

R‑600a: 75‑28‑5

Chemical Composition (wt%):

R‑125 (Pentafluoroethane): ~55%

R‑134a (1,1,1,2‑Tetrafluoroethane): ~42%

R‑600a (Isobutane): ~3%

🚦 Safety & Environmental Data

ASHRAE Class: A1 (non-toxic, non-flammable)

Ozone Depletion: ODP = 0 (chlorine-free)

Global Warming Potential: GWP ≈ 2 526 (AR4) / ~2 290

UN Shipping: UN 1078 – Liquefied non-flammable gas, Class 2.2

🧰 Features & Benefits

R‑22 Drop-In Replacement: Mimics R‑22 pressure/temp profiles with minimal efficiency losses (<10%)

No Oil Change Required: Compatible with mineral oil (MO), alkylbenzene (AB), and POE—simplifies retrofitting

Wide Applicability: Suitable for residential, commercial, and industrial systems—including DX, chillers, and refrigeration units

Service-Friendly: Available in 25 lb cylinders; systems can be topped off without full recovery

🔍 Technical Specifications

Property Value

Boiling Point ~–42 °C (–44 °F)

Critical Temperature ~85 °C (181 °F)

Critical Pressure ~574 psia (~39.6 bar)

Molecular Weight ~108.5 g/mol

Temperature Glide ~5 K

Oil Compatibility MO, AB, POE

🔄 Recommended Applications

Retrofitting R‑22 HVAC systems: AC units, heat pumps, rooftop packages

Commercial refrigeration: chillers, vending machines, supermarket cases, cold storage

Effective in light industrial cooling and DX systems

Especially well-suited for environments needing minimal downtime and upfront retrofit costs

📦 Packaging & Handling

Available in factory-sealed 25 lb cylinders, also in smaller cans and reclaimed options

Storage: Cool, upright, ventilated area away from heat

Charging: Must be charged in liquid phase to maintain blend stability

Safety: Use PPE; avoid liquid contact to prevent frostbite; avoid mixing with air during leak testing

📞 Why Choose R‑422B from AlperRefrigas

Immediate Value: Drop-in retrofit with minimal modifications

Simplified Maintenance: No oil changes, easy top-offs

Performance Retained: Cooling capacity close to R‑22, with safer discharge temps

Regulation-Aligned: Ozone-safe HFC with phasedown considerations (AIM Act)

Trusted by Professionals: Supported by Chemours/Freon, Hudson, ICOR, and more

Upgrade your systems confidently with R‑422B (NU‑22B)—a cost-effective, compliant, and technically sound solution for R‑22 phase‑out. Contact AlperRefrigas to request SDS, retrofit guides, or place an order today!