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Oil, Gas & Piping

Water Recovery Growth

Client: Sasol

Division:  Stefanutti Stocks Oil & Gas 

Description: The project entailed the construction of two anaerobic digester reactors; two bio-reactors; and two settler tanks, ranging from 30 to 40 metres in diameter. The fabrication and installation of 7 800 metres of piping and steam tracing; and the erection of 765 tons of equipment.


  • Mechanical equipment: 765 tons including vessels, columns, drums, exchangers, blowers, rotating equipment and package plant units.
  • Tanks: Two of 37mx18m, each with a geodesic dome configuration roof; Two of 40mx5m and two tanks of 30mx8m in diameter.
  • Process piping: Installation of underground and process piping requiring the welding of 36 000 diameter inches for fabricated spools and 20 000 diameter inches for erection.
  • Supply, fabrication and installation of 15 tons of pipe supports.
  • Steam tracing
  • Painting
  • Insulation
  • Testing and handover
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