Objective of Cleaning, Flushing & Passivation:

The objective of pre-operational chemical cleaning and flushing is to remove debris like silt, sand, scale, iron oxide deposits, welding slags and other contaminants that are present in a new pipe work system.

The process of pre-operational flushing and cleaning becomes more important as if these contaminants are to remain in the system, then it directly e3ects the cooling system e3iciency and reduces flow through the system.

Theses contaminants also prevents formation of uniform protective passivating layers which further leads to corrosion in the system.

Based on the above it is of paramount importance to ensure that a proper preoperational cleaning/ flushing program is carried out before the system is put into normal operation.