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Frequency of replacement of heat medium oil for thermal fluid heater system

Frequency of replacement of heat medium oil for thermal fluid heater system

The life of the heat medium oil for thermal fluid heater is related to the use temperature, and the life is shorter when the use temperature is high.

After half a year, the heat medium oil is used for sampling every 2-3 months. When the flash point of the heat medium oil changes by more than 20%, the acid value is less than 0.5 mgKOH/g, and the residual carbon is less than 1.5 wo/o, when the oil color becomes thick, it indicates that it has failed and needs to be replaced.

The relationship between heat transfer oil life and temperature is shown in the following table: (unit, year).
 

  360°C 340 320 300 280
Neo SK-OIL 1400 <1 1-2 3-4 9-11 >10
Neo SK-OIL 1300   <1 1-2 6-8 >10
Neo Sk-OIL 330   =1 3-4 8-10 >10
KSK-OIL 280   1 3-4 6-8 >10

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