KHIA headerKnow-How in Action

VOL XXXIV, NO 31

Six Chillers Coating Project

 
 

Industry:

Buildings & Structures (BSTR)

 
 

Application:

Heat Exchangers (HEX)

 
 

Customer Location:

Israel

 
 

Application Date:

2015

 
 

Application Situation:

Maintenance service of an International airport experienced problem with six chillers that covered all cooling needs for the entire facility. All units were in service for the period from 5 to 10 years and suffered from extensive corrosion on covers and water boxes, that also led to gas losses and leaks through a tubesheets on two units out of six.

 
 

Problem:

Belzona Distributor was first called in to provide a solution for gas leaks but after getting to the root cause of the problem, customer was finally convinced that that the complete Belzona repair solution is the best option that would not only stop the gas leaks but will save units from imminent failure and provide a long term protection.

 
 

Products:

Belzona 1111 Supermetal
Belzona 1331
Belzona 9111 Cleaner/Degreaser

 

Substrate:

Carbon Steel, Copper tubes

 
 

Application Method:

- Rubber corks were used at the first stage to protect internals of copper pipes from abrasive cleaning and on the second stage preformed as a molds for the Belzona 1111/1331. - The system was under force vacuum before applying Belzona products in order to seal the gas leaks - injection pistol used to make sure the deep gaps between the pipes are completely filled with product

 
 

Belzona Facts:

Customer was timely convinced to go for Belzona repair and protection of six chillers that supported the entire airport cooling system, avoiding potential interruptions of air-conditioning in a highly important facility located in hot climate zone.

 
 

Photographs Description

Picture-1 - One of the units in its' original state Picture-2 - Rubber corks inserted before blasting on a heavy corroded tubesheet Picture-3 - Belzona in action Picture-4 - Complete repair and final coat of Belzona 1331

 
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