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On-site services

Post-commissioning cleaning

Efficiency decreases due to contamination

A clean system is essential for installations / systems to function efficiently and for the long term. As the number of production years increases, all kinds of influences create contamination that has adverse consequences for the operation. By performing a periodic cleaning, the efficiency of the factory or production facility is guaranteed.

Back in operation as quickly as possible

To ensure that the installations can be put back into operation as quickly as possible, Vecom proposes the most suitable cleaning procedure. This is determined by:

  • The metal type / types of the system to be cleaned;
  • The contamination present;
  • Complexity and construction of the installation;
  • Desired results and any (customer specific) regulations.

Where possible, parts of (pipe) systems or several systems are connected to each other in the cleaning circuit in order to save time, chemicals and waste water with no concessions to human and environmental safety.

In general, the cleaning consists of the following steps:

  1. Degreasing
  2. Pickling
  3. Passivation

Post-commissioning, the different methods

The most common cleaning methods for post-commissioning are:

  1. Cleaning based on hydrochloric acid
    Suitable for: carbon steel, copper
    Removes: iron oxides (rust), welding skin, mill scale and annealing skin
  2. Cleaning based on hydrofluoric acid
    Suitable for: carbon steel, stainless steel, alloys with chrome or P91/92
    Removes: iron oxides (rust), welding skin, mill scale, annealing skin & silicate compounds.
  3. Cleaning based on citric acid
    Suitable for: carbon steel, stainless steel, alloys with chrome or P91/92
    Removes: iron oxides (rust), at high temperatures or after adding of additional chemistry, also suitable for removing mill scale and annealing skin
  4. Cleaning based on VPX One Step®
    Suitable for: carbon steel, stainless steel, alloys with chrome or P91/92
    Removes: iron oxides (rust)
On-site services

Pre-commissioning cleaning

Prior to the commissioning of systems and installations, the metal surface is cleaned to restore it after opeations like welding and grinding.

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Boiler cleaning

At power plants, the purity of the steam quality is essential. If the steam contains impurities, these can deposit on the turbine blades.

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Pickling and passivation of stainless steel systems and installations

Stainless steel systems and installations are cleaned before commissioning and in many cases periodically, to remove process contamination.

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Cleaning of urea strippers

The consequence of the typical deposition in a urea stipper is a reduced heat transfer, making the production process less efficient.

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De-rouging

The cleaning of stainless steel in the pharmaceutical industry is very important because hygiene is a very high priority here.

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Pipe pigging

Efficient internal cleaning of transport pipes while the piping system remains operational. More than 90% chemical waste reduction.

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Contact us

For more information or questions, contact one of our specialists.