Stay up to speed with these helpful, industry-focused informational articles.

Sintered Fiber Metal Composites for Aircraft Acoustic Attenuation


Sintered fiber metal composites are used in aircraft as an acoustic media within environmental ducting, inlet and exhaust systems. The material can be engineered to meet specific acoustic attenuation and noise reduction goals within these applications. 

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3 Tips to Maximize the Impact of 3D Printing


3D printing may be associated with consumer products manufacturing with short product lifecycles. In the industrial gas turbine market in particular, design cycles may be a few months or shorter. In addition, the end products can be complex from a dimensional and manufacturability standpoint.

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Protecting Turbine Blades


The compressor seals in the outer gas path inside jet engines have a tough job. They have to keep hot gases from escaping without damaging or wearing down the spinning turbine blades.

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Elastomer Seals Evolve to Meet New Requirements


Technetics Group senior design application engineer, Louis Launders and technical sales engineer, David Orton explain how market and regulatory forces are driving new elastomer seal technologies, and how manufacturers should prepare.

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In the framework of CEA, TECHNETICS GROUP France, GNS and CRIEPI collaboration an experimental program is being carried out to assess the long-term use of HELICOFLEX® metallic seals in spent nuclear fuel storage casks.

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How to Design with Inflatable Seals


Seals are central to the design of medical equipment with moveable, interlocking parts that must be secured for sanitary, thermal, or radioactive reasons. Learn why inflatable seals are the seal of choice for critical equipment applications including isolators, sterilizers, and dryers.

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Achieving ANSI Class VI Shutoff with Graphite Laminated Seals in Butterfly Valves


This article explores the characteristics and design features that allow graphite laminated seals to deliver the low-leakage characteristics required of the most demanding applications.

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Advanced Modeling Optimizes Hydrodynamic Seals


As aircraft operators are under pressure to increase uptime and drive down costs, reducing scheduled mainte­nance by shifting toward hydrodynamic seals in multiple pares of the aircraft can be an attractive option. 

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Research and Development on metallic seals for Neutral Beam injectors vessel


A specific work has been carried out to develop a solution ensuring confinement of the ITER (Nuclear facility INB-174) Neutral Beam Injectors (NBI) vessels using metallic seals.

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Spring-Energized Metal Seals Help Protect Equipment


Spring-energized metal seals provide numerous advantages in oil and gas applications, including but not limited to MWD and LWD tools, couplings, subsea compressors, enclosures/vessels, christmas trees, electronic submersible pumps and flowmeters.

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Metal Seals for Critical Valve Applications


In a typical oil refinery or chemical processing plant, 60% of fugitive emissions are attributable to leaking valves. Of these, nearly 80% are released at valve stems. Also contributing to valve failures, are leaks at the bonnet, flanges and seats. As operating conditions in these and other industries continue to subject valves to ever more extreme temperatures and pressures, sealing them effectively poses a challenge that cannot be met with traditional materials and methods.

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Protective Coatings Extend Valve Life in Severe Service Conditions


Thermal spray coatings, particularly those applied with the highvelocity oxy-fuel (HVOF) process, can extend the service life of a wide variety of industrial machinery and equipment, saving time, money and labor on maintenance and replacement. This equipment includes valves, which are often subjected to extraordinarily harsh operating conditions.

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Inflatable Seals For Critical Offshore Applications


Bruno Rouchouze and Cindy Krishna, of Technetics Group, discuss the mechanics of inflatable seals and their applications.

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Keeping it Tight: Sealing Nuclear’s Future


Despite their small footprints relative to an entire nuclear installation, sealing systems play a significant role in power plant safety. Researchers have produced more sophisticated seal designs and higher seal compressions to address present and future sealing tasks in demanding nuclear environments.

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A leakage model to design seals for solid oxide fuel and electrolyser cell stacks


Although planar solid oxide fuel cell and electrolyser technology is a key perspective for the next energy systems, it still suffers from a lack of efficient tightness solutions due to the need for the use of a mix of brittle ceramics and stiff metallic materials at high tempera-tures.

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Nuclear Article Part III: Static Sealing- Concept & Technologies


Since the beginning of the industrial era, sealing technologies have mostly been based on the same principle, commonly called "non metal-to-metal contact." Nowadays, most new sealing products coming on the market are still following the same trend. The somewhat opposite principle called "metal-to-metal contact" remains marginal.

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Nuclear Article Part II: Decades of Sealing Expertise: From Seal Qualification Lab to Trusted Global Nuclear Industry Advisor


The following article, the second of four, describes the development and continuous improvement of qualified sealing products, flange assemblies and sealing systems installed in the base of pressurized water reactor nuclear power plants (PWR NPP), as well as important organizational changes and production improvements.

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How advanced burst discs prevent pressure failures


These low-pressure burst discs are for fueling systems in aircraft. They both protect against pressure surges and are compatible with jet fuel. Burst discs for aerospace applications are made of aluminum, stainless steel, superalloys, PTFE, and other materials compatible with jet and rocket fuels, oxidizers, and other harsh fluids.

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Nuclear Article Part I: Understanding Leakage – Engineered Sealing Solutions for Nuclear Power


In the nuclear power generation industry, safety is the fundamental principle around which all practices revolve. From uranium mining and fuel fabrication to electricity generation, reactor heating and the treatment and storage of radioactive waste and spent fuel, nuclear power generation demands the utmost attention to safety standards.  

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Protecting Subsea Hydraulic Systems


Determining accumulator best suited for an application depends on the environment in which it will operate, reliability, and maintenance cost.

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Using Fiber Metal Abradable Seals in Aerospace Turbine Applications


Limiting leakage in aerospace turbo-machinery has been a focus of engineers ever since the advent of the turbine. An increasing number of companies are finding that fiber metal abradable seals are an efficient solution to reducing the amount of compressed gas that escapes past blade tips in axial-flow compressors and turbines.

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