KHIA headerKnow-How in Action

VOL XXI, NO 23

Belzona® Restores Rudder Stock To Original Dimensions

 
 

Industry:

Marine (MRNE)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

United States Navy

 
 

Application Date:

Various since 1980

 
 

Application Situation:

Rudder Stock Seal Areas.

 
 

Problem:

Corrosion of port and starboard rudder stock seals, resulting in 1/4" (6mm) metal loss on the diameter

 
 

Products:

Belzona® 1111 (Super Metal)
 

Substrate:

Stainless steel

 
 

Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflet MPT-2.

 
 

Belzona Facts:

A two piece sleeve was fabricated from 1" (25mm) plate, rolled and machined to tolerance. Inside diameter was 22" (559mm). The same former was used on both rudders, each repair taking one day to complete, and allowing the vessel to undock on time.

 
 

Photographs Description

  1. Seal area suffering from corrosion.
  2. Application of release agent to former.
  3. Split sleeves in place.
  4. Completed application.
     
    Case study pic one

     

     
     Case study pic two

     

     
     Case study pic three

     

     
     Case study pic four

     

     
     
    For more information about Belzona visit: www.belzona.com