What is a best practice for refrigerant cylinder handling and storage?

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Storing refrigerant cylinders safely centers on protecting the valve, controlling heat exposure, and keeping refrigerants clearly identified and separated. The best practice is to store cylinders upright, away from heat and direct sun, with the caps on, and with proper labeling and segregation of refrigerants.

Keeping cylinders upright helps protect the valve and reduces the chance of leaks or damage if a cylinder is bumped. Placing them away from heat and direct sun prevents excessive pressure buildup inside the cylinder and protects the cylinder and its contents from heat-related degradation. Keeping the caps on provides valve protection against impact or dust and helps prevent accidental opening or contamination of the valve stem. Clear labeling and segregation ensure you know exactly what each cylinder contains and prevent mixing incompatible refrigerants, which can be hazardous and complicate handling.

Options that omit the cap or labeling requirements, or recommend storing in direct sun, fail to address these safety protections. For example, leaving caps off exposes the valve to damage and contaminants, and storing in direct sun creates heat buildup that can increase pressure and risk.