At a glance
- The Safety Assessment Federation has updated its guidelines on shell-type boilers.
The Safety Assessment Federation (SAFed) recently updated its guidelines SBG 1 and SBG 2. These guidelines were originally published in 1997 and 1998 respectively and relate to the periodic ultrasonic flaw detection of critical welds on shell-type steam and pressurised hot water boilers.
The testing requirements covered in SBG 1/2 have been instrumental in detecting cracks which occur in the boiler shell to end plate, furnace to end plate and shell longitudinal welded joints. If such defects remain undetected, they can ultimately result in catastrophic failure of the boiler.