o Actual Temperature:This is the most critical element. 300°C, 400°C, and 500°C+ require entirely different design specifications and material grades. The higher the temperature, the stricter the requirements for material heat resistance, sealing structure, and cooling system, with costs skyrocketing.

　　o Heating medium properties:The inherent properties of the thermal oil (viscosity, lubricity, thermal stability, oxidizability, and corrosiveness) affect material selection and pump design.

　　o Pressure Requirements:The higher the system pressure, the greater the strength requirements for the pump housing and shafting, and the higher the price.

　　o Stability Requirement for Operation:Do you require continuous 24/7 operation, or intermittent short-term operation? The requirements for reliability and redundancy differ.