Threaded Electric Immersion Heaters

For processes where the electric heater is used in highly corrosive environments, single thread heaters with suitable materials are recommended based on the specific application.

Two types of welding are used depending on the manufacturing materials of the immersion heater. Silver-brazing is used for brass threaded connections, while Tig welding is used for stainless steel (300 series) or titanium threaded connections.
Upon client request, REART offers various thermostat options to ensure the proper functioning and safety of the immersion heater. The following thermostat models can be mounted on the heater (also available in the “Accessories and Spare Parts” section):

• single-phase regulation thermostats with automatic reset. Several adjustment scales including:

1-Scale 4-40°
 2- Scale 30-90° C

3-Scale 0-100° C

4-Scale 50-300° C

5-Scale 20-500° C

• single-phase safety thermostats with manual reset with the following operating scales:
• Scale 0-150°C
• Scale 20-500° C
• single-phase safety thermostats with fixed setting and manual reset:

1-Calibration 99° C

• three-phase regulation thermostats with automatic reset:

1-Scale 30-90°C

• thermostats with single-phase and three-phase regulation and safety:

1-regulation with manual reset 8-75° C safety with manual reset 98° C.

• thermostats for single-phase rigid rod heaters “RTR” model with automatic reset adjustment, scale 20-80° C.
• thermostat for single-phase rigid rod heaters “RTD” model with automatic reset adjustment, scale 20-80° C and safety up to 92° C.

All thermostat models feature an SP-DT switching contact.

Threaded electric immersion heaters are designed for process temperatures up to 150° C and operating pressures up to 15 bar.

With higher temperatures, special “cold head” designs are implemented to protect the electrical enclosure of the heater connections, including the regulation and/or safety thermostat.

Customized designs and executions are available upon client request.