No deposits at the surface of tube


This type of heaters are manufactured in protective tubes made of quartz glass. They are delivered with protective caps and connection cables. The main advantage is the possibility of changing the ceramic cartridge (or tubular element) without changing the protective tube. They are used for heating of fluids in electroplating baths and tanks. The heaters are immersed directly in working solution. Transfer of heat from heater to fluid is made by radiation through glass and therefore glass tube remains cold and no deposits are formed at the surface. Glass tubes are not resistant to mechanical damage and shocks. Glass tubes can be seriously damaged when operating on dry, outside of fluid. As a rule glass tubes are resistant to acids, but hydrofluoric acid is an exception.


  • Phosphating baths
  • Nickel-plating baths
  • Tin-plating baths
  • Other electroplating baths and tanks

Technical data

Type of

Liquid heating


Quartz glass tube
Polypropylene (PP) protective cap
Ceramic heater or stainless steel tubular heater


Diameter of tube: Ø55mm
Length of tube: 400, 600, 800, 1000mm
Inactive length: 150, 200, 250mm
Protective cap: Ø96x100mm


Vertical position in the bath


PVC cable 2m included


Standard range or acc. to customer specification

With ceramic heater inside tube
With tubular element inside tube


Voltage: 230V, 400V, 3x400V
Power: 800W, 1000W, 1500W, 2000W, 2500W, 3000W
Operating temperature: 30-90°C
Protection class IP55

Regulation: External thermostat, Liquid level controller


  • No deposits are formed on glass tubes
  • Changing the heater without changing the tube
  • Glass tubes are resistant to acids

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