01
Process line heating
Maintain temperature in liquid or gas pipelines, prevent freezing and condensation.
CIRCULATION HEATER
Circulation Heater
A complete heating section inside one pressure vessel — the medium flows through, leaves at your target temperature.
OVERVIEW
What it is
A circulation heater (inline heater) combines tubular heating elements, a pressure vessel and the control sensors in one flanged unit. The process medium — water, thermal oil, gas, hydrogen, nitrogen — passes over the elements and exits at the target temperature, so the heater drops straight into an existing pipeline.
Elements are replaceable through the flange; the vessel is engineered to your design pressure and connection standard (DIN / ANSI / GB). Power is staged through contactors or an SSR / SCR controller to follow your process demand.
Power range3 – 2000 kW
MediaWater, thermal oil, gases, cleaning fluids
Design pressureup to 4.0 MPa (higher on request)
Outlet temperatureup to 350°C
ConnectionsDIN / ANSI / GB flanges or threaded
ControlThermostat + thermocouple, SSR/SCR optional
Supply voltage380–415 V / 3Ph 50–60 Hz, other voltages on request
Protection degreeIP54 terminal box standard, IP65 optional
StandardsCE (LVD / EMC / PED), GB150 pressure vessel, ATEX / IECEx on request
Hazardous areaEx d / Ex e execution available
APPLICATIONS
Where it works
02
Closed loop heating
Heat source for circulating water or oil loops feeding multiple consumers.
03
Gas heating
Nitrogen, hydrogen, natural gas preheating before pressure reduction or analysis.
04
Skid and process loops
Inline heating for cleaning skids, circulation loops and controlled process-fluid recirculation.
SELECTION INPUT
What we need from you
Five inputs are usually enough for a preliminary selection and power estimate. You do not need a complete data sheet to start the conversation.Medium and its key properties (viscosity, fouling tendency)
Flow rate — minimum flow must be respected to avoid element overheating
Inlet and required outlet temperature
Design pressure and connection standard
Hazardous area classification, if any
FAQ
Common questions
What is the minimum flow rate?
Each element watt density defines a minimum velocity. Below it, local overheating shortens element life — we size the vessel and baffles so your real flow stays inside the safe window.
Can it be installed horizontally and vertically?
Yes. Tell us the intended orientation at inquiry stage; the vessel support and element bundle are adjusted accordingly.
Do you supply the control panel?
We supply sensors as standard and can integrate a control cabinet (SCR power regulation, over-temperature limit) matched to your PLC.
How do I prevent element overheating?
The heater should be interlocked with proven flow, working temperature and an independent over-temperature limiter. These signals are confirmed during selection.
INQUIRY PREP
Come prepared, decide faster on Circulation Heater
Have these parameters ready — they feed directly into model selection, power sizing and mechanical design review.- Medium & flow rate
- Inlet / outlet temperature
- Design pressure & connections
- Hazardous area (if any)
- Control integration
YANCHENG ELECTRIC HEATING · REQUIREMENT MATCHING
Connect with circulation-heater supply resources based on medium, pressure, temperature rise and connections.
- 01Share requirements
- 02Clarify parameters
- 03Match supply resources
- 04Discuss the proposal