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Construction Site Handbook

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[English | 简体] Air Test

This test will be set up and conducted by site supervisor and the procedures in brief are as follows : -

1. Before test , the ends of the pipeline are plugged using expanding disc stoppers and one end is connected with a U-tube manometer .
2. Air to be pumped into the pipeline until a test pressure of slightly more than 100mm of water is observed in the U-tube .
3. Allow a few minutes for stabilization of the ambient temperature , then adjust the air pressure to 100mm of water in the U-tube . Lock the device without further pumping .
4. After five-minute test period , read the pressure in the U-tube and record .
5. It is satisfactory if the air pressure remains above 75mm head of water at the end of the air test .

Air Test Sub-Pages