What type of test is performed on a piping system to check for leaks?

The hydrostatic test is a critical method used to verify the integrity of a piping system. During this test, the system is filled with liquid—usually water—under a controlled pressure. The pressure is monitored over time to determine if there are any leaks in the system. By using water, which is incompressible, the test can accurately indicate small leaks, as any drop in pressure would signal a potential failure at a joint, seam, or otherwise flawed section of the piping.

This method is particularly effective because it tests the entire system at a level exceeding normal operating pressure, ensuring that any weak points are identified before the system is put into service. The hydrostatic test is preferred for many applications due to its safety and reliability in detecting leaks compared to other methods that may not be as effective under pressure conditions.