RTB type shielded tubular heating resistor
Usage:
Shielded tubular resistance heaters are used in many applications for heating liquids and gases, by convection and for heating solids, by conduction and infrared radiation.
These are versatile heating resistors. They are usually formed, they can be fitted with threaded sleeves and spacers to fix them and hold them in position.
Maximum temperature for use of heating resistors: 800°C, load depending on use.
Technical description :
- Coiled resistive alloy wire;
- Compressed magnesium oxide powder insulation;
- Shielding by metal tube, in stainless steel (Aisi 304, Aisi 321, Aisi 316), nickel alloy (Incoloy 800, Incoloy 825) or copper;
- Diameter: 6.5– 8 – 10 – 13.5 – 16mm;
- Developed length (straight) from 100 to 6000 mm;
- Non-heating length in steel rod;
- Voltage from 12 to 480 V, alternating or direct current;
- Connection by threaded rod, Faston lugs, insulated wires, flat terminals, etc.
- Custom forming, download the forming diagram PDF file which presents the most common formings or send us your plan or send us a model;
- Fixing sleeves with seals and nuts, dimensions according to the diameter of the heating element.
- Sealing epoxy (maximum temperature at connections 160°C) or silicone (350°C).
Possible variants:
- Holes for passage of probes, pipe tapping, etc.;
- Compensated tightening (springs or Belleville washers);
- Half collar, portion of collar;
- Quick assembly (onesie);
- Thermostat under cover;
- Integrated thermocouple.
Assembly:
The nominal diameter of the band heater is the same as that of the part to be heated. It is recommended, during assembly, to ensure a good tightening of the heating collar and to perfect it after 30 minutes of heating. To ensure proper operation of the collar heater, the user must provide a temperature control system. Shielded mica collar heaters are not liquid (water) splash proof.
PHOTO GALLERY Armored tubular resistance heater type rtb
