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:
Post-commissioning, the different methods
The most common cleaning methods for post-commissioning are:
- Cleaning based on hydrochloric acid
Suitable for: carbon steel, copper
Removes: iron oxides (rust), welding skin, mill scale and annealing skin - 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. - 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 - Cleaning based on VPX One Step®
Suitable for: carbon steel, stainless steel, alloys with chrome or P91/92
Removes: iron oxides (rust)