Marine Equipment

  • antifouling system – copper-iron, aluminium-iron ship anodes
  • zinc, iron and aluminium anodes
  • silver carbon brushes and brush holders
  • copper/stainless steel compounds as well as contacts and switches
  • wipers

Antifouling systems

Blockages in the cooling system's pipework caused by barnacles and mussels are time consuming and expensive to repair, especially when complete sections of pipework need to be cleaned or replaced.

There is also the risk that seawater valves and other important items of equipment are affected, jeopardizing the operational capability and safety of the vessel.

Advantages of antifouling systems at a glance:

  • reduced maintenance costs as the result of less pipework renewal
  • prevention of partial blockages which cause engines to run at abnormally high temperatures and increased fuel consumption
  • protection of fire-fighting, refrigeration and air conditioning equipment using seawater
 

Anodes for seachests, strainers or water treatment tanks

System description: Usually, EKK anodes are mounted in pairs (Cu/Al or Cu/Fe) in seachests or strainers. During operation the copper anode releases ions inhibiting organic contamination (biofouling).

The aluminium anode produces ions reacting with seawater, thus depositing an anti-corrosive film on the interior surface of the pipeworks.

Where the piping systems are made out of copper-nickel materials, iron anodes will be used instead of aluminium anodes to reduce corrosion by depositing an oxide film on the pipework’s interior surface.

Advantages of the EKK antifouling systems at a glance

  • two systems in one – reduction of biofouling und corrosion in pipeworks
  • automatic process requiring minimum control of personnel
  • easy installation in seachests or treatment tanks
  • environmentally friendly without any need to add chemicals
  • certified quality according to ISO 9001 + 14001
  • certified quality produced in accordance with the German Water Resources Act (WHG)
 

EKK zinc anodes and aluminium anodes

Organic growth at ship’s hulls, sea bulk containers, offshore platforms and other underwater bodies has been a problem for the maritime industry and navy at all times. In our temperate zone this organic growth consists mainly out of barnacles, mussles and algae. The process of unwanted surface infestation through animals or plants is called biofouling – counteractive measures are called antifouling.

Biofouling at naval vessels, for example, increases the acquatic drag and in a consequence fuel consumption. This causes additional costs for the shipping companies and damages for our environment. As the iron or steel parts get into contact with water or humid air, the oxygen solute in water corrodes the metal. Here, metal electrodes are extracted and the ions with positive charge pass into solution, metal corrosion is caused.

To avoid this, cathodic corrosion protection is used by means of sacrificial anodes. A conductive connection between metal and sacrificial anode is set up. A primary cell is generated where the metal to be protected acts as cathode and the less noble metal acts as anode. For this, the electric current flow is to the direction of the metal to be protected. Instead of the latter now the less noble metal of the sacrificial anodes passes its electrodes to the oxygen, oxidizes and goes into solution. In this case, water acts as electrolyte enabling the transport of the charged particle, thus closing the electric circuit. The sacrificial anode is consumed over the time and has to be replaced to maintain corrosion protection.

System description:

Sacrificial anode for corrosion protection on vessels, seawater evaporation plants and offshore-equipment.
 
 

EKK carbon brushes
silver – copper - carbon

System description:

Carbon brushes are used for earthing and transmission drives.

Carbon brushes are sliding contacts in motors and generators and establish the electrical contact to the collector or to the slip-rings of the rotating part of the machine.

We offer a great variety of carbon brushes and are able to realize customer specific requirements.
 
 

EKK carbon brush holders

System description:

In a system consisting out of carbon brush and slip-ring or collector, the carbon brush holder keeps the carbon brush in its pre-defined position in order to establish the contact between a rotating or sliding part of a machine.

They are commonly used in motors like the slip-ring induction motor or single-phase in-verse-speed motor as well as the repulsion motor.

We also offer the relevant slip-rings for earthing systems.
 

EKK contacts for switch gears

for AEG, BB&C, DEMAG, Dill, Klöckner, Siemens, Télémécanique, etc.

Switch contacts can be found in contactors, relays, pushbuttons/switches. They are the most demanding electrical contacts since their mechanical and electrical capacities have to withstand frequent switching cycles.

We are also able to supply old models that are no longer produced in series.
 

EKK contactors (switches) for major manufacturers

System description:

The contactor is an electrically or pneumatically activated switch for extreme performances, similar to a relay. A contactor dis-poses of two switch positions and usually – without special arrangements – it is a mono-stable switch.
 

EKK wipers

System description:

Aluminium rail guides with high-quality rubber wipers.

Technical description:
 
Length 550 / 700 / 1000 mm
Width 9,5 mm
Height 20 mm
Bore 5 mm

Catalogues

Looking for more information?
 
Feel free to download our catalogues (german):