ipcm Protective Coatings n. 37 - April 2021

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© ITF

The shot blasting system designed and manufactured by ITF for domestic boilers.

INNOVATIONS: PRESENT&FUTURE

An Innovative Technology for Automatically Shot Blasting the Internal Surfaces of Electric Water Heaters Davide Silva ITF Srl, Mesero, Milan, Italy

C

davide.silva@itf.it

oating the inside of their tanks is essential to protect electric

mechanical pre-treatment through shot blasting and enamelling with

water heaters from corrosion, since, by their very nature,

a liquid or powder product. The coating lines required for finishing

their internal surfaces are cyclically in contact with water, whose

boilers can be semi-automatic or automatic. These are faced with

aggressiveness increases as the operating temperature rises.

several critical issues, including the significant dimensional variability

Typically, indeed, the finishing cycle of these devices for domestic

of tanks, the need to work with a continuous flow and a high

use focusses on the internal surfaces of their tanks and it involves

efficiency degree, and the high coating quality required.

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N.37 - 2021 APRIL - ipcm® Protective Coatings