Thermal Energy & Heat Transfer
Thermal oil circulation equipment for industrial heating systems requiring reliable heat-transfer fluid circulation and continuous operation.
Recommended Equipment
Thermal Oil Pump
-20°C to 350°C, no cooling water. Chemical, textile, food, petroleum.
Centrifugal Pump
16 sub-series for water, wastewater, chemicals and multistage.
Pipeline Circulation Pump
ISG / GDL inline for HVAC, hot water and industrial loops.
Key Selection Considerations
- Heat-transfer oil temperature and viscosity — The thermal oil series is rated -20°C to 350°C. Oil viscosity at the operating temperature governs the pump and seal selection.
- Required circulation flow — The series covers 1–500 m³/h. The flow follows from the heat load and the permitted temperature drop across the loop.
- System pressure and pump head — The series operates at 1–12.5 bar. The required head follows from the loop layout and the pressure loss of the heater and the user equipment.
- Continuous operation and motor configuration — Continuous duty, motor voltage and frequency and the required degree of protection should be confirmed before the configuration is fixed.
- Secondary loop duties — Where hot water or process water circulates alongside the oil loop, the pipeline series covers 1.5–1600 m³/h at 2–230 m head and 0.18–250 kW.
- Installation and site conditions — Available footprint, ambient temperature, pipe routing and service access determine the final arrangement.
Engineering Approach
The circulation duty is calculated from the heat load and the permitted temperature drop, and the pump head is then taken from the loop layout and the pressure loss of the heater and user equipment. To raise a technical recommendation, send the heat load or required flow, oil temperature and viscosity, head or pressure, loop layout, motor voltage and frequency and duty cycle.
Frequently Asked Questions
Why use a thermal oil pump?
Thermal oil pumps circulate heat-transfer oil between an oil heater and process equipment, enabling indirect heating at elevated temperatures.
What data is required to select a thermal oil pump?
Flow rate, required head or pressure, operating temperature, thermal oil type and viscosity, system layout, motor voltage and frequency and duty cycle are key inputs.
What flow rate does the thermal oil series cover?
1–500 m³/h, at pressures of 1–12.5 bar and operating temperatures from -20°C to 350°C.
Does a thermal oil pump need cooling water?
No cooling water is required for the thermal oil series, which simplifies the auxiliary installation.
Which pump is used for hot water circulation?
The pipeline circulation series covers 1.5–1600 m³/h at 2–230 m head and 0.18–250 kW for HVAC, hot water and industrial loops.
What information is needed to select a circulation pump?
Flow rate, required head or pressure, operating temperature, heat-transfer fluid type and viscosity, system layout, motor voltage and frequency and duty cycle.
Need a Technical Recommendation?
Send your operating conditions and application requirements. Our team can review the duty and recommend a suitable pump or PSA gas generation system.
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