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    Why Hydrostatic Pressure Testing Is Important

    When did your industrial hydraulic hose system last undergo a hydrostatic pressure test? Learn what these tests are and why they’re important here.

    by Scot Ranney • May 03, 2023

    In industrial hydraulic hose and pressurized vessel maintenance, many tests and services are crucial to the system’s safety and capability. Below, we’ll explain hydrostatic pressure testing and why it is important for hydraulic hose systems.

    What Is a Hydrostatic Pressure Test?

    First, what does it mean to perform a hydrostatic pressure test? In simple terms, hydrostatic pressure testing is the process of pushing a pressurized vessel or system to an excessive amount of controlled pressure to observe its reaction.

    Hydrostatic pressure testing can be performed on all kinds of pressurized vessels, from boilers and tubing to pipelines and hydraulic hose systems. In a hydrostatic pressure test, a technician fills and pressurizes a system beyond its maximum allowable working pressure (MAWP), typically about 1.5 times the MAWP. Then, they monitor the vessel’s reaction. This test stresses the system for anywhere from 2 to 12 hours to monitor the structural integrity of its connections and materials.

    Why Is Hydrostatic Pressure Testing Important?

    A hydrostatic pressure test is a key measurement to observe the unit and system’s expansion rate and determine if the system can handle the pressure it’s been rated for. Hydrostatic pressure testing stress-tests the most important and weakest points of a hydraulic hose system, like its weld joints, fittings, flanges, and materials.

    If there are small or unobservable leaks in the system, the pressure test will spotlight these weaknesses so they can be repaired and fixed before they grow into more significant tears and ruptures. For industrial applications, like transporting fuel or chemicals, hydrostatic pressure testing is incredibly important to guarantee the safety and integrity of the hydraulic hose system.

    How Do I Give My System a Hydrostatic Pressure Test?

    A hydrostatic pressure test is a vital aspect of the maintenance and care of pressurized hoses and is a mandatory prerequisite for commissioning a pressure vessel service. But you should conduct hydrostatic pressure tests again after initial commissioning to ensure the vessels and hoses are still working properly.

    There are industry and government regulations for how often one should test these vessels for safety. In general, one should perform pressure testing for hydraulic hoses every three to five years, depending on use and wear.


    If your hydraulic hose system hasn’t been pressure tested in years, The Hose Shop can help. Along with our wide catalog of hydraulic hose assembly parts and components, our services also include on-site hydrostatic pressure testing. Contact us to schedule an appointment for our techs to test and observe your hydraulic hose system today!

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