Helicoflex Texeal Brochure
Helicoflex Texeal Brochure
Hydrogen: Push Towards the Generation of Green H2
The desire to move to sustainable energy sources and reduce carbon emissions is growing exponentially. Low-cost renewable energy sources (e.g., solar, wind, hydro) are being developed and deployed worldwide.
Getting Technetical: Hydrogen-Push Toward the Generation of Green H2
There have been advancements in the research and development of clean energy sources. Hydrogen has been identified as a potential green energy source.
Hydrogen Production: The Challenges and Practical Applications
As the world shifts its focus to decarbonization initiatives, research shows responsible leaders will pour more technology and infrastructure into the hydrogen production economy to provide clean, carbon-free energy storage.
Non-Contacting Lift-Off Seal
Non-Contacting Lift-Off Seal
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
| Temperature | Pressure | Leak rate | Sealing Lining | Coating | Spring |
|---|---|---|---|---|---|
| from -272˚ up to 800˚C (from -457˚F to 1472˚F) | from 10-10 mbar up to 3000 bar (from 1E-12 psi to 43.511 psi) | Sealing level from bubble tightness down to 10-12 Pa.m3.s-1 | Aluminum Gold Silver Pure Iron Copper Brass Soft Steel Nickel Monel Tantalum Stainless Steel (304L – 316L – 321 – 316Ti) Zirconium Inconel (600 – 625 – 718 – 750) Hastelloy Titanium Tin | Gold Silver Nickel | Nimonic 90 Alloy 718 Alloy 750 SS – XC80 |
Resources
Service sur site PREST
Service sur site PREST
PREST On-Site Services
PREST On-Site Services
ORIGRAF® Graphite Seals
ORIGRAF® Graphite Seals
The ORIGRAF® seal provides a lasting high-performance sealing solution for all industries. It can be specifically designed for extreme thermal & pressure cycles ensuring higher safety in operation while optimizing total cost of ownership.
Unlike flexible graphite cut gaskets, the compression of the ORIGRAF® die-formed seal is limited by a mechanical stop: groove or inner and/or outer ring. In the case of assemblies subject to extreme pressure and/or temperature this design prevents excessive seating stress on the seal during transients.
This reliable and sustainable solution allows the optimization of overall operating costs, increasing the Mean Time Between Failure (MTBF).
Features & Benefits
- Excellent elastic recovery, capable of reaching 40% of compression recovery (spring back effect)
- Graphite spring-back effect serves the sealing function
- Adaptability to extreme thermal and pressure changes
- Chemical inertness: withstands most chemicals (mineral acids and solvents)
- Natural lubrication of the graphite: excellent resistance to radial movements of the flanges
- Can be adapted to damaged flanges
- Flexible graphite does not stick to the contact surfaces: can be easily removed
- Low creep and relaxation
- Withstand differential radial motion
Product Applications
ORIGRAF® seals are mainly used in applications servicing the following industries:
- Nuclear
- Chemical
- Petrochemical
- Aerospace
- Oil & Gas
The range of applications can be extensive, including:
- Steam equipment
- Heat exchangers/heaters
- Piping connection flanges
- Corrosive circuit
- Critical flange applications
- Boilers manways
- Fire safe requirements
- Alkylation units
Specifications
Resources
Get the Latest News and Updates
©2023 Technetics Group. All Rights Reserved. Technetics Group is an EnPro Industries, Inc. (NYSE: NPO) Company
