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RT~200℃ High-Temperature Heating Circulator
- Product Description
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Overview of the 200℃ High-Temperature Heating Circulator
A heating high-temperature circulator (also known as a high-temperature constant-temperature circulator or a circulating electric heater) is an industrial and laboratory device that achieves highly precise temperature control through electric heating and forced liquid circulation, widely used in precision temperature-control applications requiring a stable heat source.
Product Model: PLG-200/50
Temperature Control Range: RT (Room Temperature) to 200℃
Heater Power: 5.5 kW
Working Principle
The high-temperature circulator employs a closed-loop forced convection temperature-control mechanism, with the following process:
Heating: The electric heating element is energized, rapidly raising the temperature of the circulating medium (such as heat-transfer oil);
Circulation: The high-temperature medium is pumped through the external circulation interface to the target equipment (e.g., the jacket of a reactor);
Heat transfer: The medium releases heat within the jacket, raising the temperature of the reaction system, then returns to the heater after cooling;
Feedback control: A temperature sensor continuously monitors the temperature of the circulating medium, and the controller dynamically adjusts the heating power to maintain a constant set temperature;
Pressure balance: An expansion tank accommodates volume changes caused by thermal expansion and contraction of the medium, ensuring stable system operation.
Typical application scenarios
Chemistry and pharmaceuticals: Jacket heating for reactors, distillation and separation, emulsification reactions, and constant‑temperature crystallization
Materials Science: Polymerization, Thermal Stability Testing, Melt Index Determination
Biotechnology and Laboratories: Enzyme reaction temperature control, sample concentration, and preheating of biological culture media
Semiconductors and Electronics: Wafer process temperature control, packaging aging and screening
Industrial Processes: Thermal Oil Boiler Systems, Pipeline Heating, Chemical Medium Preheating
High-Temperature Heater – Technical Parameters
Model
PLG-200/10
PLG-200/30
PLG-200/50
PLG-200/100
PLG-200/150
Medium temperature range
RT-200℃
Control System
Fuzzy PID adaptive controller, PLC programmable controller
Temperature Control Mode Selection
Material temperature control and equipment outlet temperature control modes can be freely selected
Program Editing
The PLC control system allows programming of up to 5 programs, with each program capable of containing 40 steps
Communication Protocol
MODBUS RTU Protocol, RS485 Interface
External Temperature Feedback
PT100 or 4–20 mA or Communication-Based Setpoint (default: PT100)
Temperature Feedback
Equipment Heat Transfer Medium: Inlet Temperature, Outlet Temperature, Reactor Material Temperature (with External Temperature Sensors) – Three Temperature Points
Heat Transfer Fluid Temperature Control Accuracy
±0.5℃
Heating Power
2KW
3KW
5.5KW
10KW
15KW
Heating capacity 200℃
2KW
3KW
5.5KW
10KW
15KW
Heating capacity 100℃
1.3KW
2KW
4KW
8KW
12KW
Heating capacity 60℃
0.6KW
1KW
1.8KW
3.4KW
5KW
Heating capacity 40℃
0.3KW
0.6KW
1KW
2.5KW
2.5KW
Circulation pump
Flow pressureMax 10L/min
Max 20 L/min
Max 35 L/min
Max 50 L/min
Max75L/min
1.5bar
1.5bar
1.5bar
1.5bar
1.5bar
Cooler
Jiangyin Yalong (plate heat exchanger) (water-cooled option available)
Control panel
Displays set temperature and measured temperature; temperature input via touch buttons
Safety protection
Features self-tuning capability, overload relays, thermal protection devices, and a variety of other safety features
Enclosed Circulation System
The entire system is fully enclosed; it does not produce oil mist at high temperatures, does not absorb moisture from the air at low temperatures, and does not experience pressure increases due to elevated temperatures when idle. It automatically replenishes the heat-transfer fluid at low temperatures.
Power supply
380V 50HZ / 460V 60HZ
Housing Material
Cold plate with powder coating or SUS304 housing
Optional
Explosion-proof model ExdIIBT4/ ExdIICT4
Physical image of the high-temperature heating circulator
High-Temperature Heating Circulator – Detailed Images of Some Components
Control System Display, Plate Heat Exchanger, Liquid Level Gauge, Air Vent Valve, etc.
External Structural Diagram of the High-Temperature Heating Circulator
Real-Product Photos
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