Hydrostatic testing is an extremely important process that is used to help identify and locate leakages in pressurised containers or pipelines. All newly manufactured hoses, cylinders and tubes go through the hydrostatic testing process, along with any long serving or older hoses that are due to be tested, or are showing signs of a fault.
The procedure of hydrostatic testing consists of the pressure vessel being placed into a closed system; usually a test jacket filled with water and a specified internal water pressure is applied to the container inside this closed system.
The vessel to be tested will be filled with incompressible fluid – like water or oil, before it is placed in a process to be monitored. The fluids passing through the hose without any leakages will confirm that the hose is safe to use. However, just because there are no visually obvious signs, it does not always mean that the hose is safe. A pressure drop will be looked out for using the custom equipment.
The pressure will be tested at 150% of the vessels recommended operating level, which allows a thorough test of the vessel to be carried out, giving it a solid test, without risking its strength so much that it could break. This will ensure that the hose will be deemed safe to use and deal with periods of overpressure, where it will not leak, burst or become damaged in any other way, ensuring your operations can continue without the chance of accidents, disasters or fatalities.
Hydrostatic testing aims to help determine the strength of cylinders, pipes and other vessels, along with out tests used to help ensure the material is good quality. A magnetic particle inspection and liquid penetrate inspection to test for any tiny crack on the surfaces, which are conducted as per industrial compliance as a part of safety maintenance.