Park Nuclear - Nuclear Power Plant Parts
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Avoid Costly System Modifications | Nuclear Component Obsolescence Solutions

When a component becomes obsolete, the default response is often a plant modification. Park Nuclear helps facilities evaluate component-level solutions for nuclear equipment obsolescence, allowing plants to maintain existing systems while avoiding unnecessary engineering effort, extended maintenance schedules, and significant costs.

In many cases, the modification becomes far larger than the original problem.

Can your issue be solved at the component level? Park will provide you with a bridging strategy to solve the issue at the component level, allowing plants to maintain existing systems while avoiding unnecessary engineering effort, extended maintenance schedules, and significant costs.

Evaluate your plant’s component obsolescence challenge
Talk with our team

What Starts as One Obsolete Part Often Becomes a Major Modification

A single obsolete component can trigger: 

  • Procurement delays & backlogs
  • Extended maintenance work
  • System modifications
  • Engineering redesign
  • Extensive testing & documentation

These projects can take months or years and often escalate to millions of dollars in modifications.

How many times has one part caused an entire system-mod?  

Solve Nuclear Component Obsolescence at the Component Level with precision and reliability

Park Nuclear evaluates whether the challenge can be solved within the existing system.

Possible solutions include:

  • Internal component replacement rather than full system change
  • Access to legacy inventory
  • Engineered replacement
  • Obsolete components
  • Repair or refurbishment of existing equipment
  • Equivalent  item options
  • Commercial Grade Dedication & Qualification

Maintaining these systems requires practical solutions that extend equipment life without introducing unnecessary change.

Component-level solutions help utilities:

  • Maintain proven system designs
  • Reduce engineering workload
  • Shorten maintenance timelines
  • Improve long-term asset management
  • Parts availability
  • Plant reliability

Experience matters in obsolescence decision; our team has direct experience!

This experience allows the team to:

  • Understand modification triggers
  • Identify practical alternatives
  • Navigate engineering and regulatory expectations
  • Support utilities through the obsolescence evaluation process

Bring Park in early. Understand all available options to find the most practical path forward. This approach allows utilities to preserve existing systems while maintaining reliability and regulatory expectations.

What Obsolete Nuclear Components Has Park Solved For?

Cuno 52440 Series Stainless Steel Cartridge

By protecting downstream equipment and maintaining system cleanliness, the Cuno 52440 Series stainless steel cartridge filter is a crucial component of the Control Rod Drive (CRD) Discharge System in boiling water reactor (BWR) plants.

Park Nuclear offers an engineered replacement for the Cuno 52440 Series stainless steel cartridge filter. This direct drop-in replacement provides the same fit, form, and function as the original component, helping remove rust, scale, and particulate contamination from the discharge stream.

Foxboro SPEC 200 Series Control System

Approximately 70% of US nuclear power plants rely on the Foxboro SPEC 200 control system in both non-safety and Class 1E safety-related applications. Processing a wide range of input signals from field instruments, the SPEC 200 nests and related cards perform specific control functions, providing outputs to critical equipment such as control devices, indicators, annunciators, and emergency shutdown systems.

Park Nuclear supports the continued operation of the SPEC 200 series control system. We have the largest inventory of SPEC 200 equipment with thousands of cards, power supplies, nests, and associated components. By providing an engineered replacement for the N-2AX+PS9A and 2AX+PS9A Single Nest Power Supply, Park Nuclear provides utilities with a reliable solution to extend the life of their existing equipment and avoid system mods or upgrades.

Micro DCI Process Controller Product Line

CANDU, PWR, and BWR Nuclear facilities across the Americas, Europe, and Asia have extended the life of proven control architecture such as Bailey 7000 and Siemens 352/353 Controllers through the installation of Micro-DCI solutions.

The Micro-DCI Process Controller Product Line offers a practical pathway for facilities looking to modernize or maintain legacy systems. Park Nuclear is committed to supporting the continued operation of Micro-DCI systems through parts availability, engineering support, and long-term product stewardship.

Partner in the Obsolescence Process

Park Nuclear approaches obsolescence challenges with a practical mindset.

The goal is not to sell a system replacement.

The goal is to determine what is actually required to restore functionality.

Often, that solution involves repairing, replacing, or engineering one component rather than replacing the entire system.

Understand all your options before initiating system modification

If an obsolete component appears to require a system modification, it may be worth evaluating whether a component-level solution is possible.

Park Nuclear regularly assists utilities in assessing these situations.

Evaluate your plant’s component obsolescence challenge
Talk with our team

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115 Union Valley Rd
Oak Ridge, TN 37830
T: (865)-276-7206

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2999 E. Ainsworth Ave.
Pasco, WA 99301
T: (509)-547-9929

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