According to ASME BPVC Section VII, what should be used to protect heat exchangers and similar vessels?

The use of a pressure relief device is essential for protecting heat exchangers and similar vessels, as outlined in ASME BPVC Section VII. These devices are designed to prevent overpressure situations that can arise due to various operational conditions, such as thermal expansion, pump failures, or blockages in the system. By ensuring that any excess pressure is safely released, pressure relief devices help maintain the integrity of the vessel and prevent potential catastrophic failures.

Heat exchangers operate under specific pressure limits, and exceeding these limits can result in leaks, ruptures, or other dangerous events. The pressure relief device acts as a safety mechanism that automatically activates if internal pressure reaches a predetermined threshold, thus safeguarding the equipment and surrounding environment.

Other options like emergency shutoff, redundant systems, and automatic shut-off valves may serve important roles in different contexts within a system, but they do not specifically address the immediate need for pressure relief in the case of heat exchangers. While these systems can contribute to overall safety and operational reliability, pressure relief devices specifically cater to the management of excess pressure, making them indispensable for the protection of heat exchangers and similar vessels.