Belzona® Protects Evaporator Tube Sheets

Industry:

Pulp & Paper (PLPR)

Application:

Heat Exchangers (HEX)

Customer Location:

Pulp and paper mill in British Columbia, Canada.

Application Date:

December 1995

Application Situation:

Evaporator tube sheet.

Problem:

Erosion/corrosion of the tube sheet due to hot caustic (black liquor at 185ºF) and galvanic corrosion due to dissimilar metals.

Products:

Belzona® 1391

Substrate:

Stainless steel tubes and mild steel tube face.

Application Method:

The application was carried out in accordance with a modified version of Belzona Know-How Leaflet HEX-1.

Belzona Facts:

Belzona has been protecting evaporator tube sheets at this mill for several years. Erosion/corrosion is retarded. The life cycle of the equipment is extended and overall maintenance costs reduced.

Photographs Description

1. Inspection of previous coating shows degradation.  
2. One year of Belzona® 1391 coating exhibits no signs of degredation.  
3. Close-up view. Substrate is protected with Belzona® 1391.