Thermal oils must possess high heat transfer as their primary characteristic. While water is indeed the best medium for heat transfer, it has clear limitations at both colder and higher temperatures. Therefore, extremely thin oils (chemicals) are used for these types of applications, which remain liquid well below freezing and have a much higher boiling point than water.
The lower or higher the desired temperature, the higher the demands placed on the properties of the oil, particularly in terms of chemical stability. Synthetic thermal oils consist of various raw materials and compositions, giving each product its own specific and unique properties. At Rodun International BV, products are available for a temperature range of -115°C to +400°C.
In addition to excellent heat transfer, chemical stability contributes to a long service life of the thermal fluid. The ratio of low- and high-boiling fractions, and the solubility of the high-boiling fractions, can vary significantly and are critical factors in evaluating fluid properties, estimating top-up costs, and assessing the risk of degradation products.
Deviating properties of your thermal oil, such as changing viscosity or increasing contamination, are often the first signs that something is wrong in your system. Regular oil sample analysis makes these changes visible in a timely manner, allowing you to take corrective action before actual damage occurs. Rodun International expertly performs these analyses and advises you on the appropriate next steps, from filtering to a complete cleaning of your thermal system. This ensures the quality of your thermal oil remains guaranteed and prevents unnecessary downtime.
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