In connection with this increasingly popular antifreeze manufactured in an environmentally safe raw materials – propylene glycol. The use of propylene as a raw material is especially true in the case of systems heating, as it allows the use of antifreeze, as in conventional heating systems and in systems with double boiler, where there is a possibility that the anti-freeze into potable water. In this case, allowed them use as a coolant in heat exchangers at the facilities of food and coal industries, which expands the market. Propylene glycol is not toxic, even its use as food additives, but it expensive. However, due to environmental and safety use of these anti-freeze is considered more promising. Random leaks of coolant do not represent a toxicological and environmental hazards person in this room and to the environment. Despite the higher viscosity fluids based on propylene glycol have 'lubricant effect' that reduces the flow resistance (Approximately 25%) and improving the conditions of the pumps in the secondary circuit.
The coolant is stable during operation in the working temperature range for a long time does not decompose and does not oxidize. Propylene glycol promotes removal from the inner surfaces of heat exchange equipment of organic and inorganic deposits, scum. Main directions of fluids, depending on the basis of the following: Mono-ethylene glycol Propylene glycol in closed systems, heating, ventilation and air conditioning systems for residential and industrial buildings, for cooling systems of production equipment, chillers, refrigeration units, etc., working in harsh climatic conditions in air conditioning systems in the two-circuit boilers, chillers, heat exchangers food *.