Antifouling System

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Accumulation of animal and plant micro and macro organisms - otherwise known as biofouling - on the internal surfaces of strainers, pipes, intakes, valves (in general, everything in contact with seawater), leads to obstructions which, by reducing the lumen  of the pipes, may modify the seawater system performance or even lead to the sudden failure of very complex equipment.

TECNOSEAL ANTIFOULING SYSTEMS  (called ICAF Impressed Current Antifouling Systems, also known as MGPS, Marine Growth Prevention System) are specifically designed in relation to  the seawater circuit  features to be preserved and can be installed in the sea chests, in the strainers  (structural or after-market) and directly on the pipe bundles.
When in operation, the system dissipates a copper electrode whose ions carried by the water flow, are deposited on the internal surfaces of the pipes  and create an antibacterial layer which inhibits the proliferation of fouling on the metal surfaces to be protected.
In dual systems, an additional aluminum or iron electrode improves the efficiency of the copper electrode and secondarily provides protection against galvanic currents.

An ANTIFOULING SYSTEM is basically  composed of:

  • POWER SUPPLY equipped with a TOUCH-SCREEN monitor control panel
  • One or more electrodes of various types
  • Filter / sea chest / structural case / piping

In case of installation inside a Guidi® strainer, TECNOSEAL offers a wide range of electrodes equipped with anchoring devices specifically manufactured for the whole range of strainers.
Thanks to the close collaboration with Guidi®, Tecnoseal has developed for most of the filters in its catalog a variety of solutions to install the electrodes also on the transparent polycarbonate inspectionable covers.

ANTIFOULING SYSTEM by TECNOSEAL is specifically designed according to  the features of the  sea water circuit  and its flow rates, upon which  it will be  possible to define electrode sizes, currents and supply voltages to be set on the system.
The functioning of the anti-fouling system electrodes is set by the TOUCH-SCREEN control panel installed on the frontal cover of the power supply, which allows to operate on all the usage parameters and to display all the temporal graphs monitoring the functioning of the system.

ANTIFOULING SYSTEM installations can also be managed through an application directly from the CONTROL PANEL, thanks to the INTEGRATION of the system with the boat plotter
In addition to the CONTROL PANEL  application, the innovation of this system is the possibility to remotely control and set all system parameters.
This will enable Tecnoseal technical department to monitor and, if necessary, to intervene on the various settings directly from their headquarters wherever the boat is.

Tecnoseal can provide the POWER SUPPLY for ANTIFOULING SYSTEM in two different configurations according to  different project needs.

  • 4-Slot POWER SUPPLY: configurable to power from a minimum of 1 to a maximum of 4 anti-fouling electrodes.
    This power supply can also support the MONITORING SYSTEM in different configurations (optional in case you want to integrate the monitoring system of electrochemical potentials for cathodic protection).
  • 6-Slot POWER SUPPLY: configurable to power from a minimum of 4 to a maximum of 6 anti-fouling electrodes.
    Also this power supply can simultaneously support the MONITORING SYSTEM in different configurations (optional in case you want to integrate the monitoring system of electrochemical potentials for cathodic protection).

The POWER SUPPLY has been designed to host simultaneously ANTIFOULING SYSTEM and MONITORING SYSTEM upon Customer's request, allowing to save space and to optimize different functions in a single device.
The electrical panel is powered by the boat’s 24 Volt DC.

6 Slot power supply unit
H=600 mm
L=300 mm
W=250 mm

4 Slot power supply unit
H=400 mm
L=300 mm
W=220 mm


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Production of sacrificial anodes in the leisure boat market, fishing, naval, port, industrial, and civil sectors.
Consultancy, Design, and installation of cathodic protection systems.