Adroit Utilities

Pneumatic Pressure Testing

Our pneumatic testing services can be applied directly after construction, or following a stage 1 soundness test, depending on the pressure regime of the pipeline, whilst assessing creep compensation, normally associated with testing polyethylene gas pipelines in the United Kingdom.

Pneumatic testing is widely used to achieve minimum down time and economy and convenience of testing as compared to hydrostatic tests. It is also useful to detect very fine leak paths which may not be found in Hydrostatic testing.

Pneumatic pressure testing of piping and vessels at moderate-to-high test pressures or at low test pressures with high volume is more hazardous than hydrostatic pressure testing because the stored energy is much greater with compressed gases. Air, however, (like all gases) is compressible and, as a result, much more energy has to be put into the gas to raise its pressure. In fact, at the pressure ranges normally used for testing water-piping systems 200 times more energy is stored in compressed gas compared to water at the same pressure and volume. So, should a joint, pipe, or any other component fail under test pressure when using compressed gas, the energy can be released with deadly force!

Hazards from loss of containment during pneumatic pressure testing include both blast overpressure and missiles. In applications where pressure testing with liquids is undesirable or non-industry standard such as piping systems and vessels with a lower maximum operating pressure, pneumatic pressure testing can only be justified when care in fabrication and in non-destructive examination of vessels and piping reduces the probability of loss of containment to such a small value that risk is acceptable.

Pneumatic pressure testing is most commonly used on gas pipelines with a maximum operating pressure of 2Bar with most or all of the pipeline buried.

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Case Studies & Latest News

New Gas Pipeline to British Sugar

Adroit Utilities are celebrating a successful partnership with a PN Daly Ltd on the testing & commissioning of a new 7.5 km intermediate pressure gas pipeline to British Sugar, Cantley.Adroit Utilities were appointed by PN Daly Ltd, a multi-utilities specialist with offices across the UK, to carry out the hydrostatic & pneumatic testing and drying of a […]

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Complex Refurbishment

A further successful partnership is with leading construction firm Lakehouse on the renovation of an apartment complex. Adroit Utilities joined forces with Lakehouse (a construction specialist with offices across the UK) on the refurbishment of a three storey apartment complex in Lewisham which urgently required repair work to the existing balconies. The project saw Adroit Utilities appointed to undertake the […]

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We have recently celebrated a move to larger premises which has been facilitated by an ongoing period of growth and expansion. We have relocated from our previous home in Albrighton, Shropshire to larger dedicated offices, workshop and warehouse at Halesfield 17, Telford. Our new premises are situated near the M54, providing a central position for the facilitation of projects […]

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