Chemical Cleaning & Flushing
Chemical cleaning is a process during which the rust scales, oil, grease, dirt, sand and welding beads are removed by using acidic chemicals and followed by passivation layer on the pure base metal surface. This process enables protection against corrosion, thereby increasing the life of the plant and piping associated.
Flushing is carried out by the use of temporary circulation pumps (High Volume) which can deliver a desired flow rate of 110% design velocity to recover sand/debris particles from the system. This process is done to overcome immediate high maintenance costs on the permanent system pumps, thereby reducing its lifetime if the system is not flushed properly prior to commissioning.