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Type 9STB - Immersion heaters 182×130×120mm plastic enclosure. Fittings 1"1/2, M45x2. With mechanical or electronic temperature control.

Type 9STB - Immersion heaters 182×130×120mm plastic enclosure. Fittings 1"1/2, M45x2. With mechanical or electronic temperature control.

Heating Equipment
Immersion Heaters
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Main applications

Liquid heating, hot water circuits, containers and buffer tanks.

This series is intended for high-end low-power devices, single phase. It combines a modern aesthetic, a waterproof plastic housing, shock resistant, and settings viewing through a transparent window in polycarbonate. It is available with thermostat control or with an easy-to-use electronic controller, both of them with or without safety limiter.

They exist in:

- 4 standard power levels: 1kW; 1,5kW; 2kW; 3kW.

- 2 types of standard fittings: 1"1/2 and M45x2.

- 2 types of surface load density: 5W/cm² and 10W/cm². See technical introduction to optimize the surface load.

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

Fitting material: brass, swiveling on housing, brazed on tubes. (AISI 304 or AISI 316, TIG welded, or brazed, models are available on request). Supplied without gasket and without nut. See accessories below.

Thread: 1 “1/4 or 1 1/2" BSPP (ISO 228). Metric thread M45x2 available on request.

Temperature control, 2 types available

1/Electronic temperature controller with permanent digital display of temperature measured value.

- Temperature display Accuracy: ±1°C (±2°F) ± one digit.

- Temperature range 0 to 120°C (-32+250°F).

- Temperature sensor: NTC

- Display is configurable in degree or tenth of a degree.

- On-off temperature control action (relay output).

- Adjustable differential.

- If the temperature sensor is broken, the output power is cut off and the error is displayed.

2/ Mechanical thermostat, temperature range 30-90°C (85-195°F).

Enclosure: extremely robust, in thick PA66, designed for outdoor installation, IP65 and IK10. It also includes:

- A fuse to protect internal circuits (only in electronic version).

- An on- off switch (Built on thermostat shaft on thermostat version).

- A polycarbonate transparent window allowing access to the settings. This window can be secured with seals. This case also includes a separate lid, with independent seals, providing access to electrical connections.

In models with failsafe manual reset limiter, reset can be accessed after opening the window.

Cable glands: Located on a removable mounting board, providing easier access for connections, fitted with one M25, PA66, and one more hole for M25, closed by a plastic cap.

Thermowell: in standard two thermowells in AISI304, dia.8 × 7mm, 135mm length.

Electric connections:

Made on a built-in terminal block, with 5 terminals 6mm² and 5 terminals 2.5mm².

This terminal block is provided with a strap between terminals 1 and 2. By removing this strap, it is possible to connect an additional safety device, a remote control, or a timer.

Support grid: 1 grid AISI 304 for lengths from 400 to 600mm, 2 grids above.

Not heating immersed zone: 50mm.

Surface load: standard 5W/cm² or 10W/cm², other values on request.

Voltage: 220-240V single phase only.

Standard options:

Manual reset limiter, preset at : 60°C, 80°C, 100°C, 110°C, 130°C. (140°F, 176°F, 212°F, 230°F, 266°F).

Variants on request:

- 30-110°C adjustable thermostat (85-230°F).

- Thermal cut out inside a thermowell.

Options: see last section of catalogue N°22

  • Nuts
  • Gaskets

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