Shell HTF S2 B using carefully selected highly refined mineral oil blend of indirect heat transfer oil system used in the closed-end performance excellence. Applications closed loop thermal systems for industrial applications, such as processing plants, chemical plants, textile mills, as well as household appliances, such as heaters and other oil heater. Shell HTF S2 can be used for continuous high temperature heat exchanger device, the application limits are as follows: maximum film temperature of 340 ° C, the maximum oil temperature of 320 ° C. 1. extend the maintenance cycle performance advantage of Shell HTF S2 uses carefully selected highly refined mineral oil formulated into to prevent oil cracking, oxidation and thickening. HTF can extend life to ensure efficient and good thermal fluid pump circulation effect, so the heater surface temperature does not exceed the above limits. 2. The system efficiency of the heat transfer oil of low viscosity, which in a wide temperature range with excellent mobility and thermal conductivity. Shell HTF S2 low vapor pressure to prevent cracking, the maximum reduction in the formation of volatile decomposition products (otherwise needed expansion tank and sump to recover the HTF gas). 3. System Protection Shell HTF S2 non-corrosive, dissolving ability - can be oxidized sediments dissolved in the oil, clean the heat exchanger surface. Shell Thermia B can be used in the use of mineral lubricating oil sealed liquid heat transfer system. Shell HTF S2 recommendation life depends on system design and usage. If the system is well designed, nothing more than normal heat load, the heat transfer oil can be used for many years. Regular monitoring of thermal oil situation is important because changes in their physical characteristics larger than the actual value. Should be monitored indicators include: viscosity, acid number, flash point (open cup and closed cup), and insolubles content. Application of the recommendations in this document is not mentioned, may be obtained from your Shell representative.