Construction DB | Construction Site Handbook | Pigging

Construction Site Handbook

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[English | 简体] Pigging

The cleanliness , bore , linearity and joints inside the small diameter , say 450mm or less , drainage pipelines will be tested by pulling a mandrel through the completed pipeline after completion of work . The mandrel is about 750mm long and 12mm less in diameter than the nominal diameter of the pipeline being tested . If specified under the Contract , this internal inspection may have to be performed by closed circuit television ( CCTV ) .

Pigging Sub-Pages