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april 2011

The importance of the specific power of electric resistances

Electric resistances made of pure copper to reduce the effects of corrosion and increase duration over time.

The correct choice of the specific power when designing and making tubular electric resistances is a necessary condition for making this device operate correctly when in contact with water and powered by the power supply voltage.
The maximum surface load of our electric resistances is 9 watts/cm2, a value that makes it possible to distribute the heat to the liquid to  be heated in an optimal manner. This means that there are no heat concentrations that generate gas bubbles on the surface, to the full advantage of a decrease in noise. The problem is not only noise, however, but also the dissociation of the dissolved minerals, therefore the creation of limestone deposits inside the devices.
This dissociation also favours the phenomena of corrosion in electric resistances. To overcome these problems, our products can be equipped with sacrificial anodes that extend resistance life over time. Another thing that makes the difference in our electric resistances is the use of extremely pure copper to make the tube that houses the resistance.
 

23/03/2017


See also
23/11/2017 Pure copper electric resistances Top quality Italian pure copper and brass are used to produce our electric resistances.

23/06/2015 Advices for a good utilization of tubular electric heaters Corrosion and noisiness of tubular electric heaters might be reduced through a few adjustments

23/10/2014 How tubular electric resistances are manufactured Some technical aspects of the construction of tubular electric resistances sold by GNALI BOCIA

23/12/2019 The range of tubular heating elements According to practical needs, Gnali Bocia has equipped its catalog with a decisive choice of tubular electric resistances Gnali Bocia offers a number of types of tubular electric resistances

23/03/2015 A controlled process for the production of tubular electric heaters The assembly of the tubular electric heaters with components manufactured on last generation machines ensures their durability.


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