R-422B
Technical overview
R422B refrigerant for approved refrigeration service applications
R422B is a refrigerant blend used in selected low- and medium-temperature refrigeration applications, including certain approved R22 replacement projects. It must be evaluated against the equipment and its service requirements. A replacement designation does not mean it can be added to an existing charge or used without a compatibility review.
At a glance
- Designation
- R422B
- Refrigerant type
- HFC blend with a hydrocarbon component
- Composition
- R125 / R134a / R600a — 55% / 42% / 3% by mass
- Safety classification
- A1 — lower toxicity classification; no flame propagation under standard test conditions
- Net contents
- Confirm the selected option and cylinder label
- Application
- Compatible refrigeration systems specifying R422B, or selected R22 conversions supported by an approved procedure.
Check before ordering
- Confirm system approval for R422B and the intended operating temperature.
- Have the technician assess lubricant compatibility, oil return and component requirements.
- Verify pack weight and cylinder format before purchasing.
Service considerations
The equipment documentation and current safety data sheet should guide professional handling. Cylinder size, valve configuration and any required accessories must be confirmed for the actual item selected.
Compatibility & handlingDo not mix R422B with R22 or another refrigerant. Claims of replacement suitability do not establish universal compatibility or eliminate the need to review the conversion procedure.
Need help with the listing?Email contact@deployq.us with the refrigerant designation and your question. Confirm professional-use and purchase requirements before ordering.