IS camera adapted for anaerobic digestion tank inspection 26 July 2013

Glass-fused-to-steel tanks specialist Hayes GFS is reporting success with an intrinsically safe-rated inspection camera, which it used to inspect an anaerobic sludge digester, without having to decommission the plant.

Hayes GFS approached Ashtead Technology for the equipment, because of its experience with push-rod cameras and remote-control crawlers for inspecting drains, culverts and pipes – some of which can harbour potentially explosive gases, such as methane.

"The camera which Ashtead Technology recommended proved to be ideal for this job," states Hayes GFS managing director Stephen Skinner.

"We built a customised launch tube on one of the purge points on the [tank] roof and attached nylon to the camera tip so that we could video every surface once the probe was lowered into the live digester," he recalls.

"We were very impressed with Ashtead Technology, because they ensured that we used exactly the right kit, and it was delivered and collected very quickly, which helped to keep our costs to a minimum."

Brian Tinham

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