The use of asbestos in this area has been particularly widespread. The boilers of large dimensions, in particular the steam generators had the insulation of the boiler body made with panels or flake asbestos. Usually the material was positioned between the cover sheet of the boiler shell and the refractory. The boilers smaller (Monthly) had the gasket (door) coupling of the burner with the boiler body made of cardboard asbestos that thermohydraulic sewed in place. Cups, fabrics, tapes and ropes in asbestos have been used for the thermal insulation of pipes for hot fluids. The thermohydraulic, especially artisans, carried out in both its dismantling that insulating. On the coupling flanges of the whole piping used in termoidraulica were installed gaskets amiantite.

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