The Italian Institute of Welding Group’s Lab is equipped for burst and hydrostatic testing on plastic pipes, fittings, valves and composite materials (such as carbon fiber repairs in steel piping). The burst test is required for checking a new detail (pipe, valve or fitting) or renew the compliance certificate of an existing one. On the other hand, the tests on carbon fiber repairs on steel pipes just qualify the installer and do not the installation procedure. These test are underwent with the same procedure of the burst tests, otherwise, they are split in three main phases: pressure increasing in a pre-established time up to the dwell pressure, maintaining of  the dwell pressure for a fixed time and finally pressure increasing up to the rupture of the specimen. The test results are usually evaluated with the acceptance criteria defined by the applicable standars or specification.

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