Class Information
Number: 122/408.1
Name: Liquid heaters and vaporizers > Circulation > Having internal conduit
Description: Devices comprising boilers having conduits located inside the boiler and generally below the water line for accelerating the circulation of the water in the boiler. These conduits may consist of tubes, inverted bells, cylinders, or even plates spaced apart from each other or spaced from the boiler walls or tubes.
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