Williams Testing provides independent low pressure air testing of new pipes ranging in size from 6" to 24" in diameter.
New Sewer Pipes are air tested to determine the integrity of the pipe. Such a test is performed to establish sectional tightness of a newly laid sewer pipe. The test is performed to comply with local standards and guidelines. Final testing is completed under the direction and supervision of a local Utility Inspector and Project Engineer.
The test is routinely performed on clean pipes, after the compaction of trench backfill and prior to surface restoration. At each manhole, plugs are inserted and inflated in the pipeline in accordance to the manufacturer´s recommendations. All outlets and laterals are capped and sandbagged.
Once the pipeline is air sealed, low air pressure is introduced until air density reaches a pre-specified psig. A specific drop in air pressure, within a pipe section, over a specified length of time, determines acceptance or failure of the line in question. When a drop in pressure is recognized, a Segment Test can be performed to isolate the leak.
Williams Testing also offers Segment Testing to pinpoint the location of the leak.
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Sewer Line Air Acceptance Pressure Test
Images provided by Cherne Industries |