
Circulation heaters, also known as in-line heaters, are highly efficient and robust heating solutions designed to heat liquids or gases while they flow through a closed-loop system. These heaters consist of a flanged or screwplug heating element mounted in an insulated vessel or chamber, through which the process fluid passes and is heated rapidly to the desired temperature.
Engineered for precise temperature control, circulation heaters are widely used in applications such as heating oils, water, solvents, steam, air, and inert gases. Their compact and modular design makes them ideal for both small and large-scale industrial systems requiring direct and efficient heating with minimal heat loss.
| Parameter | Value / Range |
| Vessel Material Options | Stainless Steel (SS316/304), Carbon Steel, Incoloy |
| Heating Element Material | NiCr, FeCrAl alloys with MgO insulation |
| Maximum Operating Temperature | Up to 650°C (1202°F) |
| Maximum Watt Density | Up to 10 W/cm² (application dependent) |
| Voltage Options | 110V, 240V, 440V AC (custom voltages available) |
| Power Rating Range | 1 kW to 300 kW+ (custom ratings available) |
| Pressure Rating | Up to 20 bar (300 PSI) - custom ratings available |
| Flow Rate Capacity | 1–1000 L/min (depending on model and application) |
| Connection Size Range | ½″ to 8″ ANSI/DIN flanges (custom sizes available) |
| Temperature Control Accuracy | ±1°C with integrated sensors and controllers |
| Insulation Options | Ceramic fiber, mineral wool, custom insulation |
| Enclosure Rating | IP65-68 standard, hazardous area options available |
| Service Life | 5 to 10+ years typical industrial operation |
| Mounting Options | Horizontal, vertical, custom orientations available |