Employee and customer safety is our number one goal in any chemical cleaning exercise & we know that all injuries are preventable. We continually train all Supervisors & Technicians to ensure a safe work environment each and every job.

Industrial pipework carries a variety of materials:

Waste Water

Figure 1 – WW carrying lime solution to single depurator, lines plug periodically and require clearing with inhibited hydrochloric acid.
Figure 2 - Typical dose facility, clean solution directed down one pipe, returning to balance tank fire pipe 2, air pump used on this occasion.
Figure 3 - Lime deposits typically 20mm thick initially, after cleaning, pipework returned to full ID allowing design flow.


Figure 1 – Carbon Steel for pure oxygen service – cleaned & exported to Eastern Europe.
Figure 4 – Condition of pipe work “before” cleaning.
Figure 5 – Condition of pipework “after” cleaning. Clean process was alkaline detergents/Citric Acid/Ammonia/Nitrite.

Oil/Gas transfer lines (Oil Refinery) –

Figure 1 – Alkylate/Gas transfer lines plugged with Iron Fluorides across 3 areas oil refinery.
Figure 2 – Clean solution pushed backwards & forwards across refinery process areas, Alky plant to Gas plant & return – Alky end set up.
Figure 3 – Gas plant end set up – clean process was inhibited Hydrochloric/neutralisation/passivation. Heavy emphasis on PPE as HF thought to be present.

High Quality lubricant supply/recirculation –

Figure – 1 Barrier fluid lubricants are recirculated to the glands of acid transfer pumps, these lines are degreased/corrosion product if any removed/passivated/dried before being returned to service with a fresh charge of oil.
Figure 2 - Set up in industrial plants can be quite complex with numerous flows and returns, in the case above, and calculation plant, eight flows and eight returns to manage.
Figure 3 - Final quality of metal surface after cleaning and passivation process. Carbon steel surface passivated using blended Pyro phosphates.

Sterilised water pharmaceutical plants -  

Figure 1 – SS water reticulation lines are cleaned and passivated when added or changes made to the system pharmaceutical plants.
Figure 2 - Cleaning and passivation solutions are either Citric acid or Nitric acid.
Figure 3 - Strong focus on PPE due to the chemicals used in the passivation process.

Once the work to be completed is understood & all necessary risk assessments & preparation completed, manpower, chemicals and equipment are mobilised to sites where the clean & passivation process begins. This involves however is not limited to:

  • the use of specialised pumps/tanks/hoses
  • site preparation of cleaning/passivation solutions as required
  • testing & recording cleaning/passivation solutions to ensure correct qualities maintained at all times
  • thorough washing/flushing of circuits as required
  • collecting and correct disposal of cleaning solution to comply with site waste plans
Contact us today to find out more!

CORE Water Management Solutions "always part of your savings not your costs"