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Thermal oil heaters and systems are used for heating and cooling processes in a wide range of industrial applications.

Refrigeration circuits are basically comprised of four components: a compressor, a condenser, an expansion valve and an evaporator.

Produced from water electrolysis using regeneratively generated electricity, hydrogen is considered the green energy carrier of the future, as no CO2 is emitted during its use. With production costs continuing to fall in the future, hydrogen will make an important contribution to the decarbonisation of the global economy.

Cleanliness and hygiene are an absolute must for manufacturers of feed additives and pharmaceutical preparations used in animal husbandry. ARI's stainless steel bellows valves are ideal for this purpose, either with flanges or with butt weld ends.

Valves for applications in bioalcohol or potable alcohol plants have to comply with various special requirements. Explosion protection approvals (ATEX) are just as important as conformity with clean air regulations or a fire-safe design, as demonstrated by the new ARI ZETRIX process valve, for example. Stainless steels in different qualities are widely used here.

The most diverse applications are necessary to manufacture polyethylene terephthalate (PET). Many different kinds of media are involved: nitrogen, steam and condensate, ethylene glycol and water in addition to thermal oil as the heat transfer medium up to 360°C (~8 bar). Additives, catalyst and stabiliser solutions and vacuum applications are also used.