What is the recommended air pressure range for pressure testing single-walled tanks?

The recommended air pressure range for pressure testing single-walled tanks is indeed crucial for ensuring the integrity and safety of the storage system. In the typical industry standards, a pressure range of 3 to 5 psig is advocated for pressure testing single-walled tanks. This range is preferred because it provides a safe and effective threshold for identifying leaks and ensuring that the tanks can withstand the pressure without causing damage or compromising structural integrity.

Testing at this pressure range allows for the detection of minute leaks that could lead to significant environmental hazards if left unaddressed. If the pressure were set too low, it could fail to identify potential issues, while a higher pressure could stress the tank beyond its capabilities, risking structural failure. Therefore, maintaining the testing pressure within the 3 to 5 psig range strikes a balance between safety and effectiveness in identifying potential vulnerabilities in single-walled tanks.