To comply with ever-tightening restrictions on emissions of NO X (NO, NO 2, and so on), special “low NO X ” burners have been installed in many coal-fired utility boilers. These special burners reduce ...

Before welding a damaged boiler tube it is manually replaced with a pre-machined tube with the correct weld bevel. The pre-machined tube also has a small window that allows access to the inner ...

Boiler tube removal can be an extremely difficult process, and the method used will vary depending on the application. The amount of expansion as well as the age of the tube and whether or not it was ...

A boiler at the Renergia waste incineration plant in Perlen, Switzerland, was experiencing fireside corrosion. The shop-applied Alloy 625 weld overlay was showing signs of premature accelerated ...