PROJECT NAME OR TYPE:

Reactor Bottom Head Replacement

PROBLEM OR TASK:

There was stress corrosion cracking on the existing bottom head and half-pipe coil that needed to be replaced on a 26 year old reactor.

OUR SOLUTION OR DESCRIPTION OF WHAT WE DID:

Replacement of the bottom head with a half pipe coil jacket on this 26 year old reactor was necessary due to extensive corrosion cracking. The materials of construction used for the head and jacket consisted of Alloy 20 and 304L stainless steel respectively. Since the reactor was a registered ASME® code vessel repair under the National Board, an “R” stamp was required. MDavis was able to provide both shop fabrication for the new head and coil as well as the rigging and welding field services required to complete the installation.

UNIQUE CHARACTERISTICS OF OUR WORK:

This project involved fabrication of an Alloy 20 head and stainless steel half pipe cool performed under our NBIC “R” Certification.

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