KHIA headerKnow-How in Action

VOL XII, NO 35

Belzona® Repairs To Large Rubber Lined Valve

 
 

Industry:

Power (POWR)

 
 

Application:

Valves, Pipes and Fittings (VPF)

 
 

Customer Location:

Power Station in Thailand.

 
 

Application Date:

May 1996

 
 

Application Situation:

78-inch butterfly valve from cooling water system.

 
 

Problem:

Premature failure of vulcanised rubber lining allowed severe erosion-corrosion of underlying steel after just three months in service.

 
 

Products:

Belzona® 2111

Belzona® 2121

 

Substrate:

Cast iron.

 
 

Application Method:

Application was carried out in accordance with Belzona® system leaflets VPF-1 & 2 and GSS-1.

 
 

Belzona Facts:

The use of Belzona Elastomers allowed repairs to be carried out quickly on-site thus minimising disruption to the plant.

 
 

Photographs Description

  1. Condition of the valve after just three months in service 
  2. Close-up of Belzona application showing encapsulation of bolts on valve disc 
  3. 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