What pressure is used for performing a hydrostatic test?

The pressure used for performing a hydrostatic test is typically set at 1.5 times the Maximum Allowable Working Pressure (MAWP). This practice ensures that the system is tested beyond its normal operating pressures, providing a safety margin to verify the integrity of the equipment. The hydrostatic test is designed to identify any potential weaknesses, leaks, or defects in pressure vessels, pipelines, and other components by applying stress greater than what the system will experience during normal operation.

Using 1.5 times the MAWP helps to ensure that the equipment can handle safely and effectively the high pressures it may encounter during operation. It is a standard procedure and a key element in maintenance and safety protocols. This level of testing allows for the identification of any issues before the system is put into service, thereby enhancing overall safety and reliability.

While some choices mention other pressure levels or variability based on fluid type, they do not align with the standard practice widely accepted in the field for hydrostatic testing of pressure systems.