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Metal Seal Product List

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Mitsubishi Electric Wire & Cable's metal seal "Sunri-Mes" series

Mitsubishi Electric Wire & Cable's metal seal "Sunri-Mes" series

High-performance metal seals!! Ideal for various vacuum equipment and semiconductor manufacturing devices!

●With the diversification of machine specifications, there are increasing cases where seals made from conventional rubber or resin materials cannot withstand use due to their material properties. ●In such cases, metal seals represented by metal O-rings are chosen, but due to their weaknesses of high tightening force and low recovery amount, replacing seals made from rubber or resin materials is not easily achievable. ●To solve these problems, we have developed a completely new metal seal, "Sunrimess®," which possesses the advantages of metal seals while having a large recovery amount with a small tightening force.

  • Oxidation/Diffusion Device
  • CVD Equipment
  • Sealing
  • Metal Seal

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[Data] JIS V Groove DELTA Seal HNV200

[Data] JIS V Groove DELTA Seal HNV200

Introducing the lineup of DELTA seals for JIS V grooves!

We handle Delta seals for V grooves according to JIS B2290. The DELTA seal is a metal seal with a delta-shaped protrusion, designed for ultra-high vacuum applications, featuring a spring-loaded C-ring. This document introduces the specifications of the Delta seal "HNV200" and the lineup by JIS call number. 【Specifications (HNV200)】 ■ Outer layer: Aluminum ■ Inner layer: Inconel 600 ■ Spring: Nimonic 90 ■ Recommended surface roughness for sealing surface: Ra 0.8 or less ■ Required hardness for sealing surface: HV65 or higher *For more details, please refer to the PDF document or feel free to contact us.

  • Sealing
  • Metal Seal

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[Data] QDS for NW flange, Helico & Delta

[Data] QDS for NW flange, Helico & Delta

Introducing the lineup of HelicoFlex DeltaSeal + QDS!

We handle HelicoFlex Delta Seals and QDS (Quick Disconnect System - dedicated clamps) for NW flanges (KF flanges). This document introduces the lineup and specifications of HelicoFlex Delta Seals + QDS. [Contents] ■ NW nominal diameter ■ DN nominal diameter ■ Seal specifications ■ QDS specifications *For more details, please refer to the PDF document or feel free to contact us.

  • Sealing
  • Metal Seal

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The ideal is no face-to-face contact, no gaps, and a metal touch.

The ideal is no face-to-face contact, no gaps, and a metal touch.

The ideal of the HELICOFLEX seal is to achieve surface contact with no gaps, provide metal touch for seal protection, and satisfy the leak rate while preventing over-tightening.

The "HELICOFLEX(R) Seal" is an elastic metal seal developed in collaboration with the French Atomic Energy Commission (CEA). The ideal state is a strong mechanical clamping condition known as "metal touch." It seals while protecting the Helicoflex seal and preventing over-tightening. Metal touch offers advantages such as reliable compression, minimal seal elastic deformation, and maintenance of flange rigidity. 【Features】 ■ Reliable compression ■ Minimal seal elastic deformation ■ Maintenance of flange rigidity ■ Resistant to temperature changes *For more details, please refer to the PDF document or feel free to contact us.

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  • Sealing
  • Other machine elements
  • Metal Seal

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Metal seals for critical environments (accelerators, aerospace, cryogenics and nuclear fusion reactors)

Metal seals for critical environments (accelerators, aerospace, cryogenics and nuclear fusion reactors)

It is used in the most demanding/critical environments such as accelerators, aerospace, and nuclear fusion reactors!

Our HELICOFLEX(R) spring-energized C-ring metal seals are designed for advanced sealing in critical applications. We offer structures beyond the standard, such as the "HL," which is equipped with an internal limiter to prevent over-tightening, and the "HNR," which features specially processed springs to achieve low design tightening pressure. These seals are used in harsh environments, including accelerators, aerospace, fusion reactors, nuclear power plants, cryogenics, and semiconductor manufacturing equipment. 【Features】 ■ HLO: Can be used as a substitute for ring joint gaskets ■ HL: Equipped with an internal limiter to prevent over-tightening ■ HNR: A type with specially processed springs to achieve low design tightening pressure ■ HNV: Keeps initial seal levels and design tightening pressure low *For more details, please refer to the PDF document or feel free to contact us.

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  • Sealing
  • Other machine elements
  • Metal Seal

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HelicoFlex series leak rate

HelicoFlex series leak rate

Introducing the selection criteria for the HELICOFLEX(R) HN HelicoFlex series!

We would like to introduce the design standards for our HELICOFLEX(R) HN HelicoFlex series. Designed to meet two different leakage rates. Seal selection according to various applications (gas seals, liquid seals, toxicity, contamination, etc.) must be done before the detailed design of equipment and devices is completed. Insufficient bolt load will prevent even the best metal seals from meeting performance standards. We offer free bolt load calculations before estimates, so please feel free to contact us. 【Features】 ■ Leakage rate at a differential pressure of 1 bar is "bubble-tight" at 1×10^-5 Pa·m³/sec (10^-4 atm·cm³·sec) or below. ■ Leakage rate at a differential pressure of 1 bar is "helium-tight" at 1×10^-12 Pa·m³/sec (10^-9 atm·cm³·sec) or below. The quality of the installation side is crucial. (Seal performance depends not only on the seal itself but also on the material of the installation side, surface finish of contact surfaces, seal compression degree, pressure, temperature, etc. Additionally, it varies with seal shape.) *For more details, please refer to the PDF document or feel free to contact us.

  • Sealing
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  • Metal Seal

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Spring-loaded C-ring metal seal "HelicoFlex Beta HNR"

Spring-loaded C-ring metal seal "HelicoFlex Beta HNR"

Reduce the Y of the HelicoFlex! It maintains functionality even under positive pressure and high temperatures!

The spring of the "HelicoFlex Beta HNR" has been specially processed around its entire circumference to distribute elasticity more appropriately to the metal casing. When compared to the standard HelicoFlex seal, the design tightening pressure (Y2 value) is theoretically reduced by about 30%. As a result, there are more cases where metal touch can be achieved without scratching the flange groove. For more details, please contact us. 【Features】 ■ Special processing applied around the entire circumference ■ Even lower design tightening pressure than before ■ Maintains functionality even under positive pressure and high temperatures *For more information, please refer to the PDF document or feel free to contact us.

  • Sealing
  • Other machine elements
  • Metal Seal

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Spring-loaded C-ring metal seal "Omicron Seal HLO"

Spring-loaded C-ring metal seal "Omicron Seal HLO"

Usable for damaged ring joint flanges! Equipped with the elastic properties of a helicoflex seal.

The "Omicron Seal HLO" is designed for ring joint grooves and utilizes an internal limiter spacer. It possesses the elastic characteristics of a helicoflex seal and can be used on damaged flanges due to its different contact points compared to octagonal ring joint gaskets. It can be manufactured with an outer casing of soft steel, soft iron, nickel, or stainless steel. 【Features】 ■ Designed for ring joint grooves, utilizing an internal limiter spacer ■ Possesses the elastic characteristics of a helicoflex seal ■ Usable on damaged flanges ■ Can be manufactured with an outer casing of soft steel, soft iron, nickel, or stainless steel *For more details, please refer to the PDF document or feel free to contact us.

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  • Sealing
  • Other machine elements
  • Metal Seal

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Technetics Group Research Institute "maestral"

Technetics Group Research Institute "maestral"

As diverse design conditions are increasingly demanded, our company will break through the limits of technology!

Technetics' sealing technology combines cutting-edge engineering and advanced technology to demonstrate high reliability even in extreme environments. Our company has a research institute called "maestral" in France, which focuses on the development of new seals, research and development, and component development. The research results here not only build trust with leading companies in various industries but have also long been a part of the research and development efforts at various research institutions and laboratories. 【Research and Development Capabilities】 ■ Experience and achievements based on static and dynamic structural analysis using FEA ■ Comprehensive expertise involving numerical analysis of various fluids ■ Unique simulation models to ensure more accurate solutions and improvements in product performance *For more details, please refer to the PDF materials or feel free to contact us.

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  • Sealing
  • Other machine elements
  • Metal Seal

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"Selection of Metal Seals" <Materials Being Presented>

"Selection of Metal Seals" <Materials Being Presented>

A high-performance seal manufacturer introduces important points for selecting metal seals such as spring-loaded C-rings.

A high-performance seal manufacturer of seal products such as spring-loaded C-rings, metal seals HELICOFLEXⓇ, and metal hollow O-rings introduces important points for making metal seals functional, as well as key considerations for designers. The selection of metal seals is crucially dependent on the design of the corresponding flanges. The materials of the flanges and bolts, the tightening load (minimum required bolt load during tightening), pressure, temperature, and the method of bolt fastening are all related to the occurrence of insufficient compression in metal seals. ★This document can be viewed immediately by clicking the download button. 【Contents (partial)】 ■ How to make metal seals functional? ■ Seal selection based on allowable leakage rate ■ Compression and recovery of metal seals ■ Bolt load and other factors *For more details, please download the PDF or feel free to contact us.

  • Sealing
  • Metal Seal

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[Data] Case Study on the Use of Metal Seals: Demonstration of Fusion Energy Generation

[Data] Case Study on the Use of Metal Seals: Demonstration of Fusion Energy Generation

The Technetics Heliflex seal is also used in large ports of fusion energy power generation demonstration reactors.

This document contains information about the metal seals used for managing the DEMO port (connection points for heating devices and exhaust ducts) requested by our company, as well as our collaboration on operational and maintenance technology development. It also explains the management of the port, the required seal performance, and the prototype reactor DEMO aimed at achieving a commercial reactor. With the cooperation of CEA, we are addressing highly challenging technical issues. [Contents] ■ Failure is not an option ■ Paving the future of fusion energy with sealing technology ■ Providing metal seals in line with technological innovation ■ Application data sheet *For more details, please refer to the PDF document or feel free to contact us.

  • Sealing
  • Metal Seal

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High-performance metal seal "HELICOFLEX" for semiconductor manufacturing equipment

High-performance metal seal "HELICOFLEX" for semiconductor manufacturing equipment

Replace with elastomer seals! Introducing our metal seals.

"HELICOFLEX" is a high-performance metal seal for semiconductor manufacturing equipment. It is widely compatible with ultra-high vacuum (UHV), ultra-high purity (UHP), etching, CVD, and more. It is compatible with elastomer O-rings. Please feel free to contact us when you need assistance. 【Features】 ■ Ultra-high vacuum (UHV) and positive pressure applications ■ High heat resistance ■ Chemical resistance and corrosion resistance *For more details, please download the PDF or feel free to contact us.

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  • Sealing
  • CVD Equipment
  • Semiconductor inspection/test equipment
  • Metal Seal

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Teknetics Group Japan Co., Ltd. "High-Performance Seal"

Teknetics Group Japan Co., Ltd. "High-Performance Seal"

For high-performance metal seals for ultra-high vacuum, please leave it to us!

We provide high-performance metal seals for various industries such as ultra-high vacuum, semiconductors, nuclear power, textiles, automotive, and aerospace. Our main products include metal hollow O-rings, spring-loaded C-rings, HelicoFlex®, and metal C-rings. Please feel free to contact us if you have any inquiries. *For more details, please download the PDF or feel free to contact us.

  • Sealing
  • Metal Seal

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Technetics Group Comprehensive Catalog

Technetics Group Comprehensive Catalog

Fusing cutting-edge engineering and advanced technology! It demonstrates reliability even in extreme environments.

This catalog features a wide range of special metal seals, gaskets, and packing materials handled by the Technetics Group. Our lineup includes spring-loaded C-ring metal seals "HELICOFLEX(R) HelicoFlex Seal," expandable seals (inflatable seals, new seals) "CEFIL’AIR(R) Cefilia," and elastic expandable graphite seals "ORIGRAF(R) Origraf," among others. Our sealing technology combines cutting-edge engineering with advanced technology to ensure reliability even in extreme environments. 【Featured Products】 ■ Spring-loaded C-ring metal seal "HELICOFLEX(R) HelicoFlex Seal" ■ Expandable seals (inflatable seals, new seals) "CEFIL’AIR(R) Cefilia" ■ Elastic expandable graphite seal "ORIGRAF(R) Origraf" ■ Mechanical seals "CEFILAC GPA(R), GULLIVER(R) Gulliver" ■ Welded bellows "BELFAB(R) Belfab," and more *For more details, please refer to the PDF document or feel free to contact us.

  • Other machine elements
  • Metal Seal

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Spring-energized metal seal "HELICOFLEX Seal"

Spring-energized metal seal "HELICOFLEX Seal"

Excellent leakage tolerance and corrosion resistance! We provide products customized to the sealing characteristics that meet our customers' applications.

The "HELICOFLEX Seal" is a sSpring-energized metal seal developed in collaboration with the French Atomic Energy Commission (CEA). The remarkable performance of this product is the result of years of research and development, experiments, and practical applications in markets such as nuclear energy, aerospace, high vacuum, oil refining/chemicals, gas, and other general industries. With flexible design capabilities, we provide customized products tailored to the sealing characteristics that meet your specific applications. 【Features】 ■ Seal diameter φ4 to 8000mm ■ Pressure range from 10^-10 mbar to 3000 bar ■ Temperature range from -272℃ to 800℃ ■ Acceptable leakage rates that accommodate from foam liquid levels to ultra-high vacuum levels ■ Compatible with all flange standards and flange surfaces (PNEUROP, ASME, ISO, JIS, etc.) *For more details, please refer to the PDF document or feel free to contact us.

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  • Sealing
  • Metal Seal

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[For the semiconductor industry] Replacement of rubber O-rings with spring-loaded C-rings HNRV

[For the semiconductor industry] Replacement of rubber O-rings with spring-loaded C-rings HNRV

No need to change the size or number of existing bolts? A must-see for those struggling with "wanting to eliminate gas permeation and gas release from vacuum rubber O-rings" in semiconductor manufacturing equipment!

Our "Delta Beta HNRV" is a combination of a delta seal designed with a low tightening pressure (Y) and a specially processed internal spring, achieving replacement of rubber O-rings, performance enhancement, and PFAS-free status. For those who have concerns such as: "I want to eliminate gas permeation and gas release from rubber O-rings." "I cannot change the number or size of bolts on existing flanges." "I am troubled by PFAS in rubber O-rings." This metal seal is recommended. 【Features】 ■ Mainly for ultra-high vacuum applications ■ Even lower design tightening pressure than before ■ Can be replaced with elastomer O-rings ■ Two delta-shaped protrusions on the contact side of the cross-section ■ PFAS-free This does not guarantee compatibility with existing flanges. Specifications for existing flanges are required. For more details, please download the PDF or feel free to contact us.

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  • Sealing
  • CVD Equipment
  • Electron beam lithography equipment
  • Metal Seal

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"Delta Seal HNV" Spring-loaded C-ring for ultra-high vacuum metal seal

"Delta Seal HNV" Spring-loaded C-ring for ultra-high vacuum metal seal

UHP/UHV, ultra-high purity, ultra-high vacuum, advanced metal sealing solutions for ultra-low temperature.

The Technetics Group has developed a variety of high-performance metal seals as solutions for applications under severe conditions through extensive research in collaboration with the French Atomic Energy Commission (CEA). The Delta Seal (HNV HELICOFLEX(R) DELTA) is particularly suitable for the stringent conditions required above. It has a lower design tightening pressure compared to standard helicoflex seals and copper gaskets for ICF flanges. It demonstrates its capabilities on a smooth sealing contact surface, achieving a higher level of ultra-high vacuum compared to other seals. Additionally, standard drawings for Delta seals for JIS B2290 V-grooves are available. 【Product Lineup】 ■ Delta Seal (HNV HELICOFLEX DELTA) ■ Metal Hollow O-Ring (O-FLEX) ■ Quick Disconnect System (QDS) ■ HelicoFlex Seals (HN, HELICOFLEX) ■ Metal C-Ring (C-FLEX) *For more details, please refer to the PDF materials or feel free to contact us.

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  • Sealing
  • CVD Equipment
  • Etching Equipment
  • Metal Seal

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"HELICOFLEX(R)" gaskets for reactor pressure vessels and spent nuclear fuel storage casks for nuclear power.

"HELICOFLEX(R)" gaskets for reactor pressure vessels and spent nuclear fuel storage casks for nuclear power.

High-performance metal seals for nuclear applications with proven performance.

In the nuclear power industry, reducing the risk of accidents and improving safety are the top priorities, and high-performance metal seals with proven performance are necessary. In particular, products that can maintain high sealing performance even in severe design conditions are required to solve demanding technical challenges. The high-performance sealing product HELICOFLEX(R) ensures the safety of your systems and equipment while improving overall performance. It is used in new and existing nuclear power plants, spent nuclear fuel storage (casks), fusion energy reactors, uranium enrichment plants, and national laboratories. 【Application Uses】 * Pressure vessels and piping in nuclear power plants * Spent nuclear fuel storage (casks) * Small modular reactors (SMR) 【Benefits of Implementation】 * Reduced risk of accidents * Improved safety * Improved overall performance

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  • Sealing
  • Metal Seal

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[For Fusion Energy] HELICOFLEX(R)

[For Fusion Energy] HELICOFLEX(R)

Metal seals aligned with technological breakthroughs in fusion energy

In fusion energy, operations include maintaining UHV to generate extremely high‑temperature plasma (ionized gas), confine extremely high‑temperature plasma, conversion of high‑energy neutrons into heat, exhaust of helium, and removal of residual heat from fusion energy. In order to avoid a reduction in operation of port management is high and requires severe sealing performance. Our spring‑energized C‑ring HELICOFLEX(R) seal achieves excellent sealing performance even in large ports of fusion energy power generation demonstration reactors, through the plasticity of the outer jacket combined with the elasticity of the helical spring. [Application Scenes] *Large‑rectangular shape for UHV and metal to metal *Extremely high temperature [Benefits of Implementation] * Contributes to safe power generation in the future * Contributes to sustainable power generation in the future

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  • Sealing
  • Metal Seal

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[UHV to Pressurization] Metal Seal “HELICOFLEX(R) Seal”

[UHV to Pressurization] Metal Seal “HELICOFLEX(R) Seal”

High sealing performance UHV, pressurization, cryogenic, high temperatures, and cyclic conditions! Spring-energized metal seal

HELICOFLEX(R) seal is expected to provide high sealing performance under UHV required for accelerators, high pressure due to pressurization in high-performance engines, cryogenic such as launch vehicles(rockets) fuel systems, high temperatures for fusion energy applications, and even these cyclic conditions (depending on the customer application and leak rate requirements, other our option Delta Seals may be selected.) Our spring-energized C-ring HELICOFLEX(R) seal achieves excellent sealing performance even in severe design conditions through the plastically of the outer jacket combined with the elasticity of the helical spring. [Application Uses] *UHV: Accelerators, SEM, etc. *High pressure: Pressure vessels in nuclear power plants, high-performance engines, etc. *Cryogenic: Launch vehicles(rockets) fuel systems, liquid hydrogen, etc. *High temperature: Fusion energy, etc. *Cyclic conditions [Benefits of Implementation] *Reduction of accident risks *Improved safety *Improved overall performance

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  • Sealing
  • Metal Seal

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