Overview: This document provides technical specifications and guidelines for the use of tube expanders in various industrial applications such as air heaters, boilers, and refinery still tubes. It includes detailed information on tube internal diameters, mandrel specifications, and expander models.

Applications: These expanders are used for expanding tubes in air heaters, boilers, and refinery still tubes. They are suitable for thick tube sheets up to 8 inches.

Data Summary: The document includes a comprehensive table detailing the outer diameter (O.D.), tube thickness, minimum and maximum internal diameters (I.D.), and the corresponding expander model numbers. This data is crucial for selecting the appropriate expander model based on specific tube dimensions.

Recommendations: For larger size '8012' series expanders, users are advised to contact the manufacturer for more information.