Insulation of pipes with ammonia for refrigeration systems (Covameat)

Purpose

Due to a modification to the refrigeration system, the new pipes had to be insulated.

Problem-solution

The systems that control the refrigerators and freezers in the slaughterhouse use steel pipes through which ammonia (NH₃) flows. This liquid has a temperature of -28°C.

CGK insulated the piping so that the liquid remains at the same (low) temperature. Moreover, by insulating we also avoid radiant cold, freezing wounds from ice formation, bacterial formation, condensation and unnecessary energy costs.

• Each pipe to be insulated was first wrapped with Jitraband (= grease tape) to protect the pipes from corrosion and the chlorides released when foaming up the insulation.
• Then the plating (aluminum, type flat, thickness 0.8mm) was placed around the pipes and fastened with parker screws. Furthermore, the pipes are waxed before foaming up. This prevents the PUR foam from sticking to the plating.
• Next, the 2 components required to form expanded PUR foam are injected into the plating in the holes provided. After foaming up, the holes are finished with a plastic plug for a clean finish.

This job required maximum efficiency, as production could not be stopped. The changeover and start-up therefore took place during the weekend. Through a thermographic examination, CGK guarantees the professional installation of the insulation.