Катодная защита кораблей анод корпуса катодный цинковый для в морской и соленой

Cathodic protection ship hull anode sacrificial zinc anode for ships in marine and salt water

Commodity :   Zinc alloy Anode for Bulkheads for marine/ships/yacht/boat

Application:

Zinc Anodes for Bulkheads are typically used where Cathodic Protection is required on a wall within the hull of a ship, vehicle, or container.

Production standard: ASTM 

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Q. What do sacrificial anodes do?

A. All metals immersed in an electrolyte (sea water for example) produce an electrical voltage. When two dissimilar metals are in contact (electrically connected) they produce a galvanic cell (like a battery), with the less noble metal (a bronze propeller for example) forming the anode and the more noble metal (stainless steel shaft) forming the cathode.

Aluminum anode alloy provides more protection and lasts longer than zinc. It will continue to work in freshwater and is safe for use in salt water. Aluminum is the only anode that is safe for all applications.

Q. When we we choose to use Zinc anodes ?

 A. Exterior of underground or underwater pipe

      Interior of pipe handling corrosive waters and effluents

     Lead sheathed electric cable in ducts

    Other metal-sheathed electric cable in underwater or underground locations

    Copper concentric neutrals of URD cable

    Corrosion control and/or grounding of induced AC on underground pipe

    Annulus space between outer steel casing and inner pipe of deep wells

    Interior bottoms of oil storage tanks

    Foamed annulus space of insulated steel pipe underground or underwater

    Double bottom areas of ship ballast tanks

    Bottom areas of cargo/ballast tanks of petroleum carriers