How many pressure relief device(s) must ASME containers be equipped with at a minimum?

ASME containers must be equipped with at least one pressure relief device to ensure safe operation. The primary function of this device is to prevent the container from exceeding specified pressure limits, which is crucial for preventing potential hazards, including explosions or ruptures. The pressure relief device operates by automatically venting gas when the internal pressure exceeds a predetermined level, thereby maintaining safety and integrity of the container.

Having a minimum of one pressure relief device is a fundamental requirement in the design and regulation of ASME containers. This regulation ensures that there is a reliable mechanism in place to protect both the container and the surrounding environment from overpressure situations. While multiple devices may be used for added safety, the regulation mandates at least one as a baseline standard for safety in propane storage and handling.