Heating Equipment
>
Immersion Heaters
>
Type 9RBU3 - Immersion heaters with 3 hairpin heating elements, brazed brass fitting, with cylindrical thread 1”1/4 BSPP; 1”1/2 BSPP; M45x2

Type 9RBU3 - Immersion heaters with 3 hairpin heating elements, brazed brass fitting, with cylindrical thread 1”1/4 BSPP; 1”1/2 BSPP; M45x2

Heating Equipment
Immersion Heaters
Consult PDF
click to see more languages available on datasheet

Main applications

Heating of liquids, hot water circuits, containers and buffer tanks.

They exist in standard in 2 types of surface load density: 5W/cm² and 10W/cm² (Others available on request). See the technical introduction of catalogue N°22 to select the best surface load.

Many enclosures for these heaters are available in our catalogue N°11.

Heater tube material: 8mm dia. in AISI 304 or Incolloy 800 (AISI 316; AISI 321; Incolloy 825 on request).

Fitting material: Brass, brazed on tubes. Supplied without gasket and without nut. See accessories below. These fittings have M4 threaded holes for connection box assembly.

Thread: 1”1/4 BSPP ; 1”1/2 BSPP (ISO 228); M45x2.

Thermowell: Dia. 8x7mm, using the same material than heating elements.

Heating elements connections: Stainless steel M4 screw terminals, nuts and washers

Ground connection: M4 threaded hole

Not heating immersed zone: 50mm including the length inside the fitting.

Surface load: Standard 5 W/cm² or 10 W/cm², others values on request.

Voltage: 230-240V single phase (110-115V and 380-400V on request)

Options: see last section of catalogue N°22

  • Set of 4 brass jumpers for star-triangle commutation in 3 phases or connection of 3 heating elements in parallel.
  • Nuts
  • Gaskets

Find our products

We produce over 6 million components per year and manage over 10,000 codes
for finished products. View and download our catalogs to stay up-to-date!