Pressure testing is an effective tool that can be used to identify tube failures and determine the overall health of an air heater. During this procedure, a CMS inspector pressurizes each tube and records air leakage rates as they occur in damaged equipment.
When our inspectors identify failed tubes, they remove them from service by installing a mechanical plug at each end of the tube. Removing a failed tube from service is a quick way to improve boiler efficiency and reduce fan energy. CMS recommends this option as a temporary-only solution to get you back up and running more efficiently.