Safety Advisory: Use of Aluminum Pressure Relief Valves on Portable Tanks and Cargo Tanks in Anhydrous Ammonia Service

Summary

The RSPA has been advised not to use aluminum pressure relief valves on portable tanks and cargo tanks for transporting anhydrous ammonia, as this is not in compliance with the Hazardous Materials Regulations (49 CFR parts 171-180). The RSPA aims to ensure safety and facilitate compliance by clarifying the relevant regulatory requirements for these valves.