Non-Contacting Lift-Off Seal
Non-Contacting Lift-Off Seal
Failure Is Not An Option On-Demand Webinar
Failure is Not an Option On-Demand Webinar, Static Metal Seals for Space Applications
Learn why static seals play such a vital role in critical applications, including the space industry. Our Technetics engineers work directly with our customers to create the ideal sealing solution.
Webinar Highlights
Key Takeaways:
- Why you need a metal seal
- How metal seals work
- What is a metal seal
- Groove design considerations
- Application Conditions
- Leak rate discussion
- Question & answer session
Learn about the basics of metal seals and their importance in this training presented by, Technetics Group Design Engineers, Michael Shealy, and Steven Henning, as well as Senior Project Engineer, Jason Adams.
HELICOFLEX® TEXEAL® On-demand Webinar
On-demand Webinar: Technetics Group Introduces HELICOFLEX® TEXEAL®, Critical Sealing Technology
The HELICOFLEX® TEXEAL® texturized seal is a low-load metal seal which allows for the optimization of assemblies at the design phase. It offers uncomplicated installation while achieving a superior sealing level and maintaining performance over time with possibilities of reuse.
A product of the technical collaboration of Technetics Group and the French Atomic Energy Commission (CEA), this innovation allows us to address issues that other metallic solutions couldn’t solve.
Webinar Highlights
Key Takeaways
- HELICOFLEX® TEXEAL® offers a higher seal capacity to withstand service conditions (pressure & temperature)
- HELICOFLEX® TEXEAL® has a lower required load with optimal sealing
- HELICOFLEX® TEXEAL® provides better sealing performance
- HELICOFLEX® TEXEAL® has a lower sensitivity to flange surface defects
- HELICOFLEX® TEXEAL® offers the possibility of reuse
Presented by Technetics Group, Mechanical Engineers, Frédéric Sauvinet (HELICOFLEX® Seals Product Manager) and Philippe Favre (Nuclear Market Manager)
HELICOFLEX® TEXEAL® Texturized Seal Concept and Overview
HELICOFLEX® TEXEAL® Texturized Seal Concept and Overview
Technetics Group was the first to create the texturized seal concept with the goal of addressing issues with a metallic solution. Texturization has made many advances in the last few years and is now worldly applied thanks to Technetics’ innovation.
The process is simple, fast and reliable. Once the HELICOFLEX® TEXEAL® was designed, there was a series of tests conducted including varying pressures, nuclear conditions, temperatures and more. The HELICOFLEX® TEXEAL® concept allows for the highest seal performance due to its unique design, metallic properties, and rigorous testing.
How a Metal Seal Works
How a Metal Seal Works
HELICOFLEX® Resilient Metal Seal
HELICOFLEX® Resilient Metal Seal
The HELICOFLEX® seal is a high performance, flexible metal seal that has exceptional compression and elastic recovery properties. This seal is composed of a close wound helical spring surrounded by one or more metal jackets. The spring is designed to have a specific compression resistance. During compression, the resulting specific pressure forces the jacket to yield and fill the flange imperfections while ensuring positive contact with the flange sealing faces. Each coil of the helical spring acts independently and allows the seal to conform to surface irregularities on the flange surface.
HELICOFLEX® design flexibility allows Technetics engineers to customize the seal characteristics to match each unique application.
Features & Benefits
- Highest sealing level performance on the market, depending on the sealing load, the surface finish, and the surface treatment
- Excellent corrosion resistance
- Wide range of materials: from standard to specific and/or rare
- Special materials on demand for coatings: wide range of materials available, from standard to specific and/or rare (see details below in “Specifications” section)
- Extended lifetime and more
- Excellent radiation resistance
- Compatible with NACE MR 0175
- Ø 4 to 8000 mm
- Ø 1,5 to 40 mm cross-section
- Adaptable to all types of sealing surfaces (triple faces, radial, shaped, and more)
- Adaptable to all standards flanges (PNEUROP, ANSI, ISO, and more)
Product Applications
- Nuclear: reactor pressure vessels, control rods, primary pumps, pressurizers, spent fuel casks, transportation casks
- Hydrogen: Solid oxide fuel cells, High-temperature electrolysis, High-temperature water stream electrolysis, Proton exchange membrane fuel cells
- Life sciences: imaging & scanning systems
- Semiconductor chamber, exhaust and other applications in PVD/CVD/etch and lithography processes
- Automotive: engine, exhaust gas
- Oil and gas: hydraulics, subsea couplings, subsea Christmas trees, subsea compressors, electronic submersible pumps, flow meters
- Valves: body/bonnet sealing, seat sealing
- Ultra-high vacuum: accelerators & fusion research
- Gas/chemical delivery systems
Specifications
Resources
Service sur site PREST
Service sur site PREST
HELICOFLEX® TEXEAL® Texturised Seal
HELICOFLEX® TEXEAL® Texturised Seal
Increase the overall sealing performance for your installations with TEXEAL®, the new patented texturing process, applied to HELICOFLEX®, already the resilient metal seal standard for high-performance sealing.
HELICOFLEX® TEXEAL® can help reduce operating costs during maintenance. It is a material innovation developed from decades of established sealing expertise.
Features & Benefits
- Decreased overall cost of assembly during design phase
- Reduced overall operating cost
- MTBF (mean time before failure) increase
- LCC (life cycle cost) decrease
- Sealing performance optimized without increasing tightening force (up to 10-12 Pa.m3.s-1)
- Lower stress on the assembly using the same tightness level
- Sealing performance maintained during thermal cycles
- Adaptable to a wide range of assembly dimensions
- Adaptable to groove sealing surfaces
- Choice of Materials
Product Applications
- Nuclear: reactor pressure vessels closure head, control rods, reactor coolant pumps (RCP), pressurizers, steam generator, spent fuel casks
- New energies: molten salts & solar plants
- Semiconductor: chamber, exhaust and other applications in PVD/CVD/etch and lithography processes
- Valves: body/bonnet sealing, seat sealing
- Steam generator seal
Specifications
Resources
PREST On-Site Services
PREST On-Site Services
HELICOFLEX® DELTA Resilient Metal Seal
HELICOFLEX® DELTA Resilient Metal Seal
The HELICOFLEX® DELTA seal is a member of the HELICOFLEX® family of spring-energized seals. It is a unique sealing solution using two small ridges or “Deltas” on the face of the seal. The load required to plastically deform the jacket material is greatly reduced by concentrating the compression load on the Deltas. The resulting high-contact stress in the seal track makes the HELICOFLEX® DELTA seal an excellent choice for ultra-high vacuum applications that require ultra-low Helium leak rates. There is typically no risk of damaging the flange sealing surfaces as long as the minimum hardness requirements are maintained.
Features & Benefits
- Highest sealing level performance on the market, depending on the seal jacket, the cavity/flange finish, the bolting, the hardware robustness and the cleanliness level
- Ø 1.9 to 6.4 mm cross-section
- Adaptable to all types of sealing surfaces
- Adaptable to all flange standards (PNEUROP,ANSI, ISO, and more): no limitation on flange materials, allowing the seals to be used on metal flanges as well as ceramic, glass-lined and glass flanges
- Wide material choices: from standard to specific and rare (see details below in “Specifications” section)
Product Applications
- Ultra-high vacuum
- Space
- Semiconductor
For the following industries:
- Research laboratories
- Fusion
Specifications
Resources
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