Testing For Pressure; Different Procedures

Liquids flow endlessly through cylinders and pipes, and similar structures. But in the process, pathways could become faulty. Should this happen, fluids could leak. And needless to say, this becomes costly to all stakeholders involved, let alone the business owner. One way of avoiding such defaults is through pressure testing houston tx work. Depending on the industry, and depending on the materials being transported through these piping systems, different testing procedures will be considered.

Proof pressure testing can go as high as 200,000 psi. The more complex tests carried out will be taking into account external loading, insulation resistance, strain recording, temperature and the like. Pressure cycle testing is also done. So too combined pressure and/or external load testing. Pressure and temperature cycling will be done to accommodate API qualifications. The proof test is nondestructive. It checks to see if a component or system is able to withstand pressure above the operating pressure but without any permanent damage or leaking occurring.

Testing for leaks entails that a part must be pressurized. This is done by immersing a part into clear liquid. It is then pressurized with air or nitrogen and the operator then looks out for leaks. The test is easy and versatile to carry out. The helium test, on the other hand, requires a mass spectrometer to check for leaks. This test is sensitive and it gives a more quantitative assessment of any leaks that may have occurred.

pressure testing houston tx

But burst testing is destructive. It needs to establish the pressure at which a component or system has sustained its permanent deformation, as well as the pressure at which it failed. Apart from leaking, the failure that requires the burst test could have been catastrophic. Finally, ‘autofrettage’ can help improve the fatigue life of a thick-walled, high strength and high-pressure component.