Holtec International is an internationally recognized supplier of state-of-the-art heat exchangers and pressure vessels to the nuclear industry. Holtec’s engineers are the original developers of the auxiliary heat exchanger embodiments that were later standardized by the NSSS suppliers in the ‘70s in their plant designs.

Letdown Heat Exchanger

Regenerative Heat Exchanger

Most pressurized water reactors (PWRs) and boiling water reactors (BWRs) built in the U.S. and abroad by U.S. suppliers contain shell and tube heat exchangers designed by Holtec’s engineers.

Among the heat exchanger types for light water reactors developed by Holtec’s engineers are:

Pressurized Water Reactors
• Regenerative Heat Exchanger
• Letdown Reheat Heat Exchanger
• Moderating Heat Exchanger
• Seal Water Cooler
• Fuel Pool Cooler
• Control Rod Drive Cooler
• Residual Heat Removal Heat Exchanger
• Containment Spray Heat Exchanger

Boiling Water Reactors
• Clean-Up Heat Exchanger
• Fuel Pool Cooler
• RHR Heat Exchanger
• Letdown Heat Exchanger

Holtec International continues to provide the integrated resources to meet the nuclear industry's needs for replacement and refurbishment of plant heat exchange equipment and supply of pressure vessels for special applications.

PPCD also specializes in providing replacement of custom heat exchange equipment purchased long ago from firms that no longer exist, using the original design specification documents and drawings to “reverse engineer” the equipment.