What is the minimum test pressure for hydrostatic testing in relation to PVHO working pressure?

The minimum test pressure for hydrostatic testing is set at 1.25 times the maximum allowable working pressure. This standard is crucial in ensuring the safety and integrity of pressure vessels and equipment used in diving operations. By testing at 1.25 times the maximum allowable working pressure, it provides an added margin of safety to account for unexpected stresses that may occur during actual use. This extra pressure helps identify any potential weaknesses or defects in the vessel that could lead to failure under normal operating conditions.

It’s designed to ensure that when the pressure vessel is subjected to its maximum working conditions, it can operate safely without risk of failure. Adhering to this testing standard guarantees that the equipment will maintain its structural integrity, which is essential for preventing accidents and ensuring diver safety during underwater operations.