Hydrostatic Testing for businesses


A hydrostatic test is the normal way in which a gas pressure vessel such as a gas cylinder is checked for leaks or flaws. Testing is very important because such containers can explode if they fail when containing compressed gas.

The vessel is visually examined for defects and then placed in a container filled with water, and in which the change in volume of the vessel can be measured by monitoring the water level. The vessel is then pressurised for a specified period and depressurised again. The water level in the jacket is then examined. The level will be greater if the vessel being tested has been distorted by the pressure change and did not return to its original volume or some of the pressurised water inside has leaked out. In both cases, this will normally signify that the vessel has failed the test.!








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300 foot test chamber