What is the minimum requirement for the discharge flow rate of a pressure relief device?

The minimum requirement for the discharge flow rate of a pressure relief device is that it must not be reduced below the required capacity of the container. This ensures that, in the event of a pressure build-up, the relief device can effectively discharge gas at a rate sufficient to prevent overpressure conditions that could lead to failure or hazardous situations.

Maintaining a flow rate that meets or exceeds the container’s capacity is crucial for safety. If the discharge flow rate is less than what is required, it may not adequately relieve pressure as needed, thus increasing the risk of accidents or explosions due to overpressure. This highlights the importance of designing pressure relief devices to match or exceed the specific demands of the containers they protect, ensuring reliability during emergency situations.