What is the maximum gauge pressure to be used for pressure testing fuel supply lines?

The maximum gauge pressure for testing fuel supply lines is set between specific values to ensure safety and integrity of the system. In this case, the choice indicating a pressure of no less than 5 but no more than 10 is supported by industry standards that aim to prevent damage to piping and fittings while ensuring that the system can operate without leaks or other failures.

Setting the pressure too low might not adequately test for leaks, as it may not reflect the operational conditions that the lines will face. Conversely, exceeding the upper limit of 10 can risk damaging the fuel supply lines and connections, potentially leading to system failures or hazardous situations. Thus, the range provided ensures that the testing is effective while still prioritizing safety and the longevity of the equipment used in fuel supply systems.

This adherence to a defined pressure range is crucial in maintaining compliance with regulations and best practices in the oil and fuel industry.