A range of leak detector instruments are offered to allow the routine testing of components for automotive, electrical or gas applications.
The technology of pressure decay leak testing involves filling the item to the required pressure, then monitoring the pressure over time to see whether it decays due to leakage. However, the process is complicated by dimensional changes in the part and connections, as well as adiabatic heating of the gas. Both of these lead to an apparent leak, and the test needs to accommodate or correct for these effects, which become larger with increasing part volume.
TSE has many years of experience in the choice of test method, appropriate test limits, and a range of options to optimise the method and fixtures for sealing to the part. Automated test systems, and integration with other test methods, are all part of the package we can offer.
Furness Controls have developed some special technology for pressure decay leak testing, including a unique differential pressure system which gives the maximum sensitivity and accuracy for the smallest leaks.
Alternatively we can measure leaks with a tracer gas, which allows the measurement of very small leaks, overcomes the limitations of large volumes, thermal effects and long stabilisation times, and permits tracing of the exact leak location. It even works for buried pipes and cables, and the use of a mixture of nitrogen and hydrogen as a tracer offers major advantages compared with more established helium tracer.
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