Nuclear Seals for Safe and Reliable Performance

Critical Solutions for the Nuclear Industry

In the nuclear power industry, you need confidence your products will perform safely and reliably. That’s why Technetics Group is the leader in sealing solutions. “Off the shelf” simply won’t do, which is why we design high-performance nuclear seals, components and sub-systems that are customized and proven to perform for your specific needs. After all, for more than 50 years Technetics Group solutions have enhanced performance and improved safety by reducing the risk of catastrophic failure.

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Storage and Transport Cask
  • HELICOFLEX® Spring Energized Metal Seals
  • Extruded and Molded Rubber Seals
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Control Rods
  • HELICOFLEX® Spring Energized Metal Seals
  • ORIGRAF® Graphite Seals
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Reactor Pressure Vessel
  • HELICOFLEX®Spring Energized Metal Seals
  • O-FLEXTM Metal Seals
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Pool Gates in Reactor Building and Fuel Building
  • CEFIL’AIR® Inflatable Seals
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Primary Pump
  • Silicone Profiles
  • VITAFLEX® Spiral Wound Gaskets
  • HELICOFLEX® Spring Energized Metal Seals
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Building Wall Plug Material & Personnel Locks
  • Silicone Profiles
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Pressurizer
  • ORIGRAF® Graphite Seals, VITAFLEX® Spiral Wound Gaskets
  • HELICOFLEX® Spring Energized Metal Seals
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Primary Loop Filters Thermocouple Nozzels Removable Flanges for Cavity Filling
  • Quick Disconnect System (QDS®)
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Pipes, Exchangers
  • ORIGRAF® Graphite Seals
  • VITAFLEX® Spiral Wound Gaskets
  • HELICOFLEX® Spring Energized Metal Seals
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Nuclear Valves
  • CEFIGRAF® JPR
  • CEFIGRAF® NS200HP
  • Graphite Seals
Body/Bonnet Sealing
  • ORIGRAF® Graphite Seals
  • VITAFLEX® Spiral Wound Gaskets
  • HELIOFLEX® Spring Energized Metal Seals
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Secondary Loop
  • CEFIGRAF® JPR
  • CEFIGRAF® NS200HP Graphite Seals
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Turbine
  • HELICOFLEX® Spring Energized Metal Seals
  • Mechanical Seals
  • FELTMETAL™ Abradable Seals
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Steam Generator
  • ORIGRAF® Graphite Seals
  • VITAFLEX® Spiral Wound Gaskets
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For the Entire Nuclear Life Cycle

From enrichment to reprocessing, from power generation to waste management, our nuclear seal solutions play a role in every step of the nuclear cycle. Our critical components are found in new and existing nuclear power plants, spent fuel casks, fission reactors, enrichment plants and national laboratories. They include nuclear reactor pressure vessel (RPV) closure heads, reactor coolant pump (RCP), quick disconnect systems (QDS), metal seals and gaskets, and much more.

Driving Innovation

Technetics Group is hard at work developing the next generation of sealing components for the nuclear industry. At maestral, the Technetics Group R&D Innovation lab located in the South of France, we’re actively developing new solutions for nuclear generation IV and fusion projects, as well as hydrogen fuel cell and electrolysis projects. We’re working to help solve the most demanding technical challenges to enhance performance and longevity.

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Research and Development

We continuously innovate and develop cutting-edge sealing technologies tailored for nuclear applications.

Engineering Design

Our team of experts collaborates closely with clients to design customized sealing solutions that meet their specific requirements.

Computer Simulation

Using advanced simulation tools, we analyze and optimize sealing performance to ensure the highest level of reliability.

Characterization

We conduct rigorous testing and characterization of our sealing materials to guarantee their compatibility and durability in nuclear environments.

Installation

Our skilled technicians ensure proper installation of sealing solutions, adhering to industry standards and best practices.

Qualification

We meticulously qualify our sealing products to meet the nuclear industry’s stringent safety and regulatory standards.

Applications

  • Fusion
  • Fission
  • Small Modular Reactors (SMR)
  • Micro Modular Reactors (MMR)
  • Sodium Fast Reactor
  • High-temperature gas reactor
  • Generation IV Reactor
    • Gas-cooled Fast Reactor (GFR)
    • Lead-cooled Fast Reactor (LFR)
    • Molten Salt Reactor (MSR)
    • Supercritical Water-cooled Reactor (SCWR)
    • Sodium-cooled Fast Reactor (SFR)
    • Very High Temperature Reactor (VHTR)

Related Products

Case Studies

A Legacy of Excellence

Today, with 13 primary manufacturing locations and more than 1,000 employees globally, the Technetics Group has grown to be the leading manufacturer and designer of sealing and critical component solutions, including sub-systems and assemblies, in the world.

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