
Boiler Expanders
Tube expanding is the art of cold working the ends of tubes into intimate contact with the metal of the containing tube holes to form a leak-proof, mechanical seal and/or joint. Boiler expanders to not include a mandrel when ordered because it's possible to obtain them with three different types of mandrels depending on application. *All mandrels sold separately.
Choose the right boiler expander.
To select the correct expander, the following information is required:
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Tube O.D.
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Tube Wall Thickness or BWG
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Tube Sheet or Drum Thickness
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Minimum straight section at end of tube
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Drum diameter (if less than 18")
*Longer reach expanders are available upon request.
Airetool® heat exchanger and condenser expanders have long been recognized as the standard to which all other brands are measured. The extra time spent manufacturing our expanders results in consistent performance and incredible durability that is expected of OEM heat exchanger manufacturers.
