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Heliflow Advantages with Supercritical Fluids


Heliflow Advantages with Supercritical Fluids

Supercritical fluids require a high pressure and temperature environment; these types of heat transfer applications are well suited to the Heliflow design. The unique spiral tube design of the Heliflow allows it to move freely under thermal cycling as the tube bundle is allowed to expand and contract as necessary. This movement helps alleviate the stress and thermal shock problems that can be seen with a standard shell and tube design.

To handle high pressure on the tube side as well as the shell side, the Heliflow is available as a WeldSeal (image on left). This option replaces the standard bolted design (image on right) and welds the baseplate to the casing, allowing the shell to handle pressures up to 5,000 psig. The tube side can see up to 15,000 psig.

Many different material options are available for both the tube and shell side of the Heliflow. Standard materials include copper, 304 SS, 316 SS, while some more uncommon materials are Inconel, Titanium, and Duplex 2205. Graham as a rule builds to ASME standards and can provide U-Stamping.

To know which material and design best fit your needs, talk to the team at Campbell-Sevey.

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