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VOL XIV, NO 39

Belzona® Repairs Pipes Transporting Sulfuric Acid

 
 

Industry:

Petrochemical (PETR)

 
 

Application:

Valves, Pipes and Fittings (VPF)

 
 

Customer Location:

Refinery in Minnesota, U.S.A.

 
 

Application Date:

1996

 
 

Application Situation:

Pipe carrying sufuric acid at 80 psi.

 
 

Problem:

Thin spots were detected on the pipe by UT inspection. The pipe required reinforcement.

 
 

Products:

Belzona® 4301 (Magma CR1 Hi-Build)

Belzona® 4311 (Magma CR1)

Belzona® 9341 (Reinforcement Tape)

 

Substrate:

Stainless steel

 
 

Application Method:

The application was carried out in accordance with a modified version of Belzona Know-How System Leaflet VPF-11a.

 
 

Belzona Facts:

Belzona® 4300 Series Magma Polymers resist sufuric acid at concentrations up to 98%. Prior to this repair the customer conducted a test to evaluate the Belzona materials. A hole was drilled through a mock pipe, and the Belzona Polymers were applied with a reinforcement sheet. The pipe held to 800 psi before leaking.

 
 

Photographs Description

  1. Following surface preparation by cleaning, Belzona® 4301 was applied with reinforcement tape
  2. Finishing touches with a top coat of Belzona® 4311
  3. Finished job
 
 
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For more information about Belzona visit: www.belzona.com