圧力エネルギー

荷重制御のために設計された断面および壁厚

内部、外部、軸方向の圧力に対応

材料の範囲（合金X750、718、ワスパロイおよびその他の特殊金属）

メッキおよびコーティング：銀、金、PTFE（その他あり）

温度範囲：-273°Cから730°C（-460°Fから1350°F）

圧力範囲：中真空から2,000バール（29,008 PSI）まで

漏れ範囲：直径1インチあたり約≤ 25 cc/min @ 50 psig窒素から≤ 1 x 10-4 std.cc/sec空気。実際の漏れ率は、シール荷重、表面仕上げ、および表面処理に依存します。

オプション機能

摩耗抵抗コーティングが利用可能

カスタム形状およびサイズが利用可能

石油およびガス：ダウンホールドリリング/MWD

産業用タービン：燃料システム/ノズル

バルブ：ボディ/ボンネット、バックシートシーリング

航空宇宙/宇宙：ターボポンプ、燃料システム、ノズル/インジェクター、低温技術

自動車：ターボチャージャー、排気

要約:

産業の急速な発展に伴い、オートバイ、自動車、重トラック、機械および設備などの供給と需要が急速に増加しています。重トラックにおけるガスの使用に関しては、安全性と効率性を達成し、運転の快適さと安全性を確保するために、金属Vリングの重トラックのガス出口への応用について紹介します。これには、ガス出口におけるVリングの設計、製造材料、製造プロセス、および応用原理が含まれます。同時に、Vリングの性能がテストされ、分析され、その優れた性能が重トラックのガスシステムにおいて証明され、業界により多くの選択肢を提供します。

キーワード:

メタルV字型リング; 重トラック; ガスシステム、ガス出口; アプリケーション

一、導入

国の環境保護政策の段階的な導入に伴い、物流業界は燃料の節約と環境保護を達成するために、LNG（液化天然ガス）の使用に徐々に移行しています。同時に、物流業界の競争はますます激化しており、重トラックの運用の安定性、快適性、安全性が製品に対してより高い要求を突きつけています。その結果、重トラックのガス輸出の安定性は物流業界で関心の高い話題となっています。この問題を解決するために、金属製Vリングは重要な解決策となり、ますます適用されています。

二、金属Vリングの設計と製造

金属Vリングは、V字型の弾性体に似た構造形式を持つシーリング構造部品です。外力がリングに作用するか、「V」の曲げ角度が変化すると、Vリングは一定の範囲内で圧力を形成し、それを周囲のシーリングエリアに伝達します。

重機トラックのガスシステムにおいて、Vリングの最も重要なポイントは、それらが安定して信頼できる必要があるということです。ガスシステムの適用において、Vリングの設計と製造は、信頼性のある品質を確保するために、基準を厳格に遵守しなければなりません。

Vリングの設計は、組み立てプロセス中に良好なシールを確保するために、異なる重機トラックの要件に応じて調整する必要があります。

金属Vリングを製造する際には、高品質の金属材料を使用する必要があります。一般的に、亜鉛メッキ鋼板、ステンレス鋼板、硬質アルミニウム、真鍮、チタン合金などの材料が使用できます。その中でも、316Lステンレス鋼は優れた耐腐食性を持ち、化学、航空宇宙、食品、製薬産業に適しています。また、重機トラックのガスシステムの製造材料としても一般的に使用されています。

三、金属Vリングの製造プロセス

金属Vリングの製造プロセスは、その品質に直接影響します。一般的に、製造プロセスには切断、成形、成形などの複数の段階が含まれます。

1. カッティング

金属Vリングの製造において、最初のステップは良い製造材料を選ぶことです。次に、異なる要求や設備アーキテクチャに対応する型を開発し、切断、型開け、またはスリーブ分解方法を使用して切断します。

2. 形成

切断後、金属板は型の要求に従って厳密に成形されます。まず、定量的なパンチングが必要で、ボードの中心を空にして円環の基本形状を形成します。次に、型を通してエッジを曲げて押し出し、最終的な「V」開口形状を形成します。

3. 形成

いわゆる成形とは、Vリングのさらなる機械加工を指し、標準的な形状とサイズに成形し、その後、加工、熱処理、表面処理などのプロセスを通じて加工および強化することを指します。

四、ガス輸出における金属Vリングの応用

金属Vリングは主にガスシステムのシールに使用され、ガスが漏れ出さないようにし、シールが困難な状況で良い役割を果たします。

アプリケーションの原理：V字リングの内側はV字型で、外側は円形であり、弾性構造に属します。外部圧力がVリングに作用すると、Vリングは収縮し、圧力が消えると元の状態に戻ることができます。さらに、バルブとの組み合わせの過程で、Vリングはシールの信頼性を確保します。

五、パフォーマンステストと分析

金属Vリングの重機トラックガスシステムにおける性能を検証するために、その性能がテストされました。実験テストは、金属Vリングが優れた信頼性と安定性を持ち、複数の圧縮および減圧プロセス中にシーリング性能を継続的に維持できることを示しています。さらに、圧力に耐える能力は比較的強く、高強度の圧力下でも密度を確保できます。

六、結論と展望

金属Vリングの重機トラックガスシステムへの適用は重要な技術であり、その信頼性と安定性が検証されています。今後、業界の発展と技術の進歩に伴い、この技術は生産の質をさらに向上させ、全車両の信頼性と安全性を改善するでしょう。

高級生物医学における新たな領域を開放せよ！上海ライドの春強化金属C型シーリングリングが医療機器の信頼性を再構築します。

バイオメディスンの分野では、高度な医療機器のすべての正確な操作が患者の生命、健康、治療効果にとって重要です。上海ライド's painstakingly developed spring - reinforced金属C型シールリング（ゴールド/シルバーコーティング）理想的な選択肢として浮上しています ハイエンドシーリング バイオメディスンにおける優れたパフォーマンス。高度なために特別に設計された医療用CTシステムとその他ハイエンド医療アプリケーション、彼らは厳しい要件を満たし、機器の安定した運用を守ります。

Ourスプリング - 強化金属C型シーリングリング 四つのコアの利点を誇ります。彼らの高温耐久性は素晴らしく、極端な温度での信頼性のある動作を可能にします。最大750°C. Whether in高温 長期運用によって生成された環境CT機器 or高温 陽子線治療システムの条件では、常にシーリング性能を維持し、安定した機器の運用を確保できます。高圧抵抗は同様に印象的であり、最大での大きな圧力に耐えることができます。1500 バール, 確固たる信頼性のあるシーリングを提供するためのCT機器 下 高圧条件、機器の操作に関する懸念を排除します。耐腐食性も過小評価すべきではありません。特殊な耐腐食材料で作られ、処理されています。金/銀メッキ, 彼らは依然として医療機器に一般的に見られる酸やアルカリなどの過酷な化学環境で長期間使用することができ、機器のメンテナンスコストと交換頻度を大幅に削減します。超高真空シール性能はハイライトです。優れた 漏洩率は1×10⁻¹⁰ Pa·m³/sまで低くなります、彼らは非常に高い精度と安定性を維持することができます超高真空アプリケーション, 陽子線治療システムにおける加速器などの重要なコンポーネントのために、安定して信頼性の高い作業環境を作成すること、X線管, and CTイメージング機器の検出器I'm sorry, but there is no text provided for translation. Please provide the text you would like to have translated into Japanese.

このシーリングリングは、バイオメディスンの分野で幅広い用途があります。プロトン治療システムにおいては、加速器や主要コンポーネントの精度を確保するための鍵であり、プロトンビームの正確な伝送と焦点合わせを保証し、癌治療の効果を向上させるのに役立ちます。CT imaging equipment、これは、などの主要コンポーネントの信頼性を効果的に向上させます。X線管 および検出器は、外部干渉を減少させ、画像をより明確にし、診断をより正確にします。さらに、それはまた適しています。ハイエンド医療機器 そのような MRIシステム and放射線画像診断ツール. 外部磁場の干渉を防ぐことや液体の漏れを防ぐことに関しても、容易に対処でき、シーリング要件を完全に満たしています。ハイエンド医療機器。

上海Raidoは常に革新に駆動されており、バイオメディスンの分野においてより良いシーリングソリューションを提供することにコミットしています。私たちの選択はスプリング - 強化金属C型シールリング 医療機器の信頼性と安定性を守ることを選ぶことを意味します。バイオメディスンの分野で明るい未来を共に創造しましょう！

Stainless steel 316L metal O-rings are critical sealing components in melt filters. Their application is highly compatible with the process characteristics and operating requirements of melt filtration, playing an irreplaceable role in ensuring stable equipment operation, filtration efficiency, and product quality. This article provides a detailed analysis from the aspects of application background, core functions, compatibility analysis, practical application scenarios, and precautions: 

## I. Application Background: Operating Characteristics and Sealing Requirements of Melt Filters  

Melt filters are widely used in industries such as plastics, chemical fibers, rubber, food, and pharmaceuticals. They are primarily used to filter impurities, gel particles, or unmelted substances from molten materials (e.g., polymer melts, resins, food melts) to ensure the quality of subsequent processing (e.g., spinning, film extrusion, injection molding). Their core operating characteristics impose stringent requirements on sealing components: 

1. **High-temperature environment**: Melt temperatures typically range from 150°C to 400°C (e.g., polyester melts at approximately 280–300°C, nylon melts at 240–260°C), with some engineering plastic melts reaching even higher temperatures. 

2. **High-pressure conditions**: Materials must maintain a certain pressure (usually 0.5–3 MPa) during filtration to drive the melt through the filter medium, avoiding pressure fluctuations that could destabilize flow rates. 

3. **Medium properties**: Melts are mostly viscous polymer materials, some containing trace corrosive additives (e.g., antioxidants, flame retardants). Additionally, sealing materials must not contaminate the melt (especially in food and pharmaceutical fields). 

4. **Frequent disassembly needs**: Filters require regular replacement of filter elements. Sealing components must withstand repeated mechanical stress from disassembly and quickly restore reliable sealing after each operation. 

## II. Core Functions of Stainless steel 316L metal O-rings  

In melt filters, Stainless steel 316L metal O-rings are mainly used for static sealing of critical interfaces such as **filter body and end cover, filter cavity and flange, and inlet/outlet joints**. Their core functions include: 

1. **Preventing melt leakage**: Through rigid metal sealing and interference fit, they block high-temperature, high-pressure melt from seeping through sealing gaps, avoiding material waste, equipment contamination, and safety hazards (e.g., burns from contact with high-temperature melt). 

2. **Ensuring stable filtration pressure**: Seal failure can cause pressure loss, affecting melt flow rate through the filter medium and filtration efficiency. The high strength and deformation resistance of stainless steel O-rings maintain stable system pressure. 

3. **Avoiding medium contamination**: Stainless steel (e.g., 316L) has excellent chemical inertness, does not react with melts, and does not release impurities at high temperatures, meeting cleanliness requirements in food, pharmaceutical, and other fields. 

4. **Adapting to frequent maintenance**: Compared to rubber or non-metallic seals, stainless steel O-rings offer better wear resistance and fatigue resistance, retaining sealing performance after multiple disassembly cycles, thus reducing maintenance frequency and costs. 

## III. Compatibility Analysis of Stainless steel 316L metal O-rings  

### 1. Material Compatibility: Meeting High-Temperature and Corrosion Resistance Needs  

- **High-temperature stability**: Commonly used 304 and 316 stainless steels can operate stably below 400°C for long periods. Their melting points (1300–1400°C) are much higher than the operating temperatures of melt filters, preventing softening, aging, or failure due to high temperatures (rubber seals typically age above 200°C and cannot withstand long-term high temperatures). 

- **Corrosion resistance**: 316 stainless steel, containing molybdenum, exhibits stronger resistance to trace acidic/alkaline additives, moisture, or residual solvents in melts. It is particularly suitable for filtering engineering plastic melts with corrosive components (e.g., PVC, fluoropolymers). 

### 2. Structural and Sealing Principle Compatibility: Addressing High Pressure and Surface Defects 

- **Interference sealing of solid structure**: Stainless steel 316L metal O-rings have a solid circular cross-section. During installation, they form an interference fit with the seal groove, undergoing slight elastic deformation under preload to fill micro-scratches and roughness defects on the sealing surface, creating an initial seal. As system pressure increases, melt pressure further compresses the O-ring, enhancing contact stress on the sealing surface (the "self-tightening seal effect"), which adapts to the high-pressure conditions of filters. 

- **Reliability of metal-to-metal sealing**: Compared to the "elastic sealing" of rubber O-rings, the "metal-to-metal" sealing of stainless steel O-rings is more resistant to extrusion—they are less likely to be damaged by extrusion through gaps under high pressure, making them particularly suitable for high-pressure sealing of large-diameter interfaces such as filter end covers. 

### 3. Mechanical Performance Compatibility: Withstanding Disassembly and Long-Term Use 

- **High strength and fatigue resistance**: Stainless steel has high tensile strength (approximately 520 MPa for 304 stainless steel), making it resistant to plastic deformation or fracture under repeated preload from disassembly. Its service life is much longer than that of non-metallic seals, reducing the cost of frequent replacements. 

- **Dimensional stability**: Stainless steel has a low thermal expansion coefficient (approximately 17×10⁻⁶/°C), resulting in minimal dimensional changes under high-temperature conditions. This maintains a stable interference fit, preventing increased sealing gaps and leakage due to thermal expansion and contraction. 

## IV. Practical Application Scenarios and Typical Cases  

1. **Plastic extrusion melt filters**:  

   In PE and PP film extrusion production lines, melt filters remove impurities from raw materials to ensure film transparency. Stainless steel O-rings are used for flange sealing between the filter housing and filter cartridge, withstanding melt temperatures of 200–300°C and pressures of 1–2 MPa to prevent production interruptions and material waste caused by melt leakage. 

2. **Chemical fiber spinning melt filters**:  

   In polyester and nylon spinning processes, melt purity directly affects yarn quality (e.g., breakage, fuzz). 316 stainless steel O-rings provide sealing for high-precision filters, not only withstanding 280°C temperatures but also avoiding melt contamination and spinning defects due to their clean, non-leaching properties. 

3. **Food-grade melt filters**:  

   In filtering food melts such as chocolate and syrup, compliance with FDA and other food contact standards is required. 304 stainless steel O-rings are non-toxic and non-migratory, and they withstand high-temperature disinfection (e.g., steam cleaning), adapting to hygiene requirements in the food industry. 

## V. Application Precautions  

1. **Sealing surface processing precision**: Stainless steel O-rings require high surface roughness of the sealing surface (typically Ra ≤ 1.6 μm). Surface scratches or depressions can cause seal failure, so the processing quality of seal grooves and flange surfaces must be ensured. 

2. **Preload control**: Insufficient preload leads to poor initial sealing, while excessive preload may cause over-deformation of the O-ring or damage to the sealing surface. 

3. **Material selection**: 304 stainless steel is suitable for general conditions, while 316L stainless steel is preferred for corrosive media or high cleanliness requirements. Avoid use in extremely corrosive environments containing sulfur or chlorine (special coatings or alloy materials may be required). 

4. **Installation and maintenance**: Avoid scratching the O-ring with sharp edges during installation. Regularly inspect the sealing surface for wear or corrosion, and replace the O-ring promptly if deformation or cracks are found. 

## VI. Conclusion  

FKMゴムガスケット 

FKM（フルオロエラストマー）、別名フルオロゴムは、高フッ素含有量の合成ゴムで、フルオロ化モノマーから共重合されています。その分子構造における多数のC-F結合は、材料に優れた化学抵抗性、高温抵抗性、および耐老化特性を与えます。したがって、FKMゴムガスケットは、厳しいシーリング性能要件を持つ産業シナリオで広く使用されています。以下は、コア性能、典型的な適用シナリオ、利点と制限の観点からの詳細な紹介です： 

## I. FKMゴムガスケットのコアパフォーマンス 

FKMゴムの分子構造は、安定した炭素-フッ素結合によって支配されており、強い化学的不活性と優れた物理的および機械的特性を特徴としています。具体的には以下のように表れます： 

### 1. 化学抵抗 

- **広範囲中程度耐性**: それはほとんどの有機溶剤（ケトン、エステル、エーテル、芳香族炭化水素など）、強酸（硫酸、硝酸など）、強アルカリ、グリース、油圧オイル、燃料油（ガソリン、ディーゼル、航空用灯油を含む）、および腐食性ガス（塩素、フッ素など）に対して強い耐性を持っています。膨張、硬化、または劣化しやすくありません。 

- **特殊環境への適応性**:強い酸化環境（オゾンや過酸化水素を含むシナリオなど）で安定した性能を維持できるため、強い腐食性媒体のシールに適用可能な数少ないゴム材料の一つです。 

### 2. 高温耐性 

- **長期運転温度範囲**:**-20℃~200℃**の範囲で長時間安定して動作することができます。一部の高性能グレード（例えば、ペルフルオロエーテルゴム）は、短期間の温度で260℃または300℃まで耐えることができ、一般的なゴム（例えば、EPDMやニトリルゴム）の耐熱限界を大幅に超えています。 

- **高温安定性**: 高温環境下で柔らかくなったり、流動したり、分解したりすることは容易ではなく、低い圧縮セット率（通常は長期間の高温下で<30%）を持ち、シーリング効果を継続的に確保することができます。 

### 3. アンチエイジングと耐候性 

- **アンチエイジング能力**:酸素、オゾン、紫外線、気候劣化（太陽光、雨、湿度の変化など）に対する強い耐性があります。長期間使用してもひび割れ、硬化、性能低下を起こしにくく、その耐用年数は一般的なゴムパッキンよりもはるかに長いです。 

- **放射線抵抗**: 一部のFKMグレードは特定の放射線耐性を持ち、低線量放射線環境でのシーリングニーズに使用できます。 

### 4. 物理的および機械的特性 

- **シーリング性能と弾力性**:優れた弾力性と圧縮反発力を持ち、シーリング面に密着することができます。振動や圧力の変動がある作業条件下でも、信頼性のあるシーリングを維持し、漏れのリスクを低減することができます。 

- **耐摩耗性と強度**: それは適度な表面硬度を持ち、EPDMよりも優れた耐摩耗性を持ち、高い引張強度と引裂強度を持ち、特定の機械的ストレスに適応することができます。 

## II. FKMゴムガスケットの典型的な適用シナリオ 

上記の優れた特性に基づき、FKMゴムガスケットは、シーリング性能、耐熱性、耐腐食性に対する要求が非常に高い産業分野で主に使用されます： 

### 1. 石油化学およびファインケミカル産業 

- 反応器、貯蔵タンク、パイプラインフランジ、およびバルブのシールに使用され、さまざまな腐食性媒体（酸-塩基溶液、有機溶媒、触媒など）および高温作業条件（蒸留や重合プロセスなど）に適応します。 

- 油抽出装置（例えば、掘削プラットフォームのシール）、精製所のパイプライン、熱交換器のシールに適応し、原油、重油、さまざまな精製副産物からの腐食に耐える。 

### 2. 自動車と交通 

- 自動車エンジンシステム:高温コンポーネント（燃料噴射システム、ギアボックス、ターボチャージャーなど）のシールに使用され、エンジンオイル、高温冷却剤、燃料からの長期的な侵食に耐えます。 

- 新エネルギー車:バッテリー冷却システムおよびモーターシールに適応し、冷却剤（エチレングリコール溶液など）や高温環境に耐え、電圧耐性および絶縁要件を満たします。 

- 航空宇宙:航空機エンジン燃料システム、油圧システム、および高温パイプラインのシールに使用され、高高度の低温、地上の高温、航空燃料などの過酷な環境に適応しています。 

### 3. 機械製造および産業機器 

- 高温機械:産業炉、乾燥機、蒸気パイプライン用のシーリングガスケットなど、連続的な高温と熱サイクルの影響に耐える。 

- 油圧および空気圧システム: 高圧油圧機器および空気圧バルブのシールに使用され、油圧オイルおよび圧縮空気の長期的な影響に耐え、高温下での劣化や故障が起こりにくい。 

### 4. 電子および半導体産業 

- 半導体製造装置:エッチング機やイオン注入装置のシーリングコンポーネントなど、フッ化水素（HF）や塩素などの腐食性ガスや高温プロセス環境に耐える。 

- 電子部品のシーリング:高温電子機器（例えば、電源モジュール）の防水および防塵シールに使用され、機器運転中の高温環境に適応します。 

### 5. 食品および製薬業界（特定のグレード） 

- FDA（米国食品医薬品局）またはUSP（米国薬局方）基準を満たす食品グレードのFKMガスケットは、高温滅菌機器（スチーム滅菌器など）や食品加工機械のシールに使用できます。これらは高温スチームや洗浄剤による腐食に耐え、無毒で、有害物質を放出しません。 

## III. FKMゴムガスケットの利点と制限 

### 利点 

- **非常に強い化学抵抗性**:ほとんどの酸、アルカリ、溶剤、腐食性媒体に適応し、普通のゴムよりもはるかに広い適用範囲を持っています; 

- **優れた高温耐性**: 200℃以上で長時間使用でき、高温産業シナリオのニーズを満たします; 

- **アンチエイジングと長寿命**:優れたオゾンおよび紫外線耐性があり、屋外や長期間の使用でも故障しにくく、メンテナンスコストを削減します； 

- **高いシーリング信頼性**:優れた弾力性と圧縮反発があり、振動や圧力変動条件下でも効果的なシールを維持できます。 

### 制限事項 

- **限定的な低温性能**: 普通のFKMは-20℃以下で硬化し、弾力性を失う傾向があり、低温シール性能が低下します（特別な低温グレードを選択する必要があり、コストが高くなります）； 

- **高コスト**:原材料の価格は、EPDMやニトリルゴムなどの汎用ゴムの価格よりもはるかに高いため、低コストで過酷でない作業条件でのシーリングニーズには適していません; 

- **極性溶媒の制限**:ほとんどの媒体に対して耐性がありますが、いくつかの強い極性溶媒（低分子ケトンなど）で膨張するリスクがあるため、事前に適合性試験が必要です； 

- **難しい処理**: 加硫成形プロセスは高い要求があり、温度と時間を正確に制御する必要があります。そうでなければ、性能に影響を与える可能性があります。 

## IV. 選択に関する考慮事項 

- **メディア互換性の確認**:使用環境における特定の媒体（酸、アルカリ、溶剤の種類など）に応じて、メーカーが提供する化学抵抗データシートまたは実際のテストを通じて互換性を確認してください; 

- **温度範囲の一致**: 作業条件の長期使用温度と短期ピーク温度を明確にし、温度耐性レベルに対応するFKMグレード（例えば、普通のFKMまたはパーフルオロエーテルゴム）を選択します。 

- **低温ニーズの考慮**:低温環境（-20℃以下など）が作業条件に含まれる場合は、ガスケットの硬化や故障を避けるために、改良低温FKMまたはペルフルオロエーテルゴムを選択する必要があります； 

- **コストとパフォーマンスのバランス**: 高温でなく、強い腐食性のないシナリオでは、コストパフォーマンスの高いゴム（EPDMやニトリルゴムなど）が好まれる場合があります。FKMは厳しい作業条件により適しています。 

## 概要 

「化学抵抗性、高温抵抗性、耐老化性」という三つのコアな利点を持つFKMゴムガスケットは、厳しい環境に対応するために産業シーリング分野で「ハイエンドソリューション」となっています。石油化学、自動車、半導体などの高需要シナリオでは特に欠かせません。コストは比較的高いですが、その超長寿命と信頼性の高いシーリング性能は、設備のメンテナンスリスクを大幅に低減できるため、高価値設備のシーリングに理想的な選択肢となっています。

Raido Spring-Energized Hollow Metal ORings: Innovative Sealing Solution​

The newly launched spring-reinforced metal hollow Oring (also referred to as spring energized metal oring seals) by Raido is an innovative upgraded product developed based on the basic hollow metal oring seal. As a high-performance sealing component with unique structural design and outstanding functionality, it combines the advantages of traditional spring-energized hollow metal orings while achieving significant upgrades in sealing performance and working condition adaptability. Below is a comprehensive detailed introduction:​

1. Structural Features​

1.1 Core Structural Design​

The traditional spring-energized hollow metal oring is typically formed by bending a thin-walled seamless tube into a circular shape, with its two ends butt-welded to create a hollow interior. Raido’s upgraded product inherits this hollow structure while elevating it with a key innovation: high-performance elastomers (springs) are precisely installed in the inner cavity. Through the elastic support of the springs, the product forms a unique composite sealing structure of "metal skeleton + elastic compensation" — the metal hollow body serves as a rigid skeleton to ensure structural stability and resistance to extreme conditions, while the embedded springs provide continuous elastic force, addressing the limitations of traditional sealing components.​

1.2 Material Matching​

To maximize performance, Raido scientifically matches materials for the metal body and springs:​

• Metal body: Options include stainless steel, high-temperature alloys, and other materials, selected based on specific application requirements (e.g., corrosion resistance, high-temperature tolerance);​

• Springs: Made of special elastic alloys, ensuring excellent elasticity, fatigue resistance, and compatibility with the metal body to avoid issues like galvanic corrosion.​

2. Performance Advantages​

Building on the inherent strengths of traditional spring-energized hollow metal orings, Raido’s product achieves further breakthroughs in sealing efficiency and durability:​

2.1 High Elasticity and Superior Recovery Capacity​

Like traditional models, the embedded springs enable the oring to quickly rebound after significant compressive deformation, effectively compensating for wear, thermal deformation, or assembly errors that could degrade sealing performance. This ensures long-term stability even in dynamic working environments.​

2.2 Enhanced Sealing Reliability (Key Innovation)​

A standout advantage of Raido’s design is its ability to address sealing surface defects. When the sealing surface has minor scratches, unevenness, or other flaws, the springs generate continuous and uniform compensating force through their own elasticity. This force pushes the metal body to closely fit the sealing surface, effectively offsetting various defects on the surface, greatly reducing leakage risks, and delivering far better sealing performance than traditional hollow metal orings (which often fail to seal properly on imperfect surfaces).​

2.3 Strong High-Pressure Resistance​

The "metal skeleton + spring" structure significantly improves pressure collapse resistance. While traditional spring-energized hollow metal orings can handle pressures up to 40MPa (with some ultra-high-pressure models reaching over 100MPa), Raido’s product, through precise regulation of spring strength, can withstand extreme pressure conditions ranging from ultra-high vacuum to a maximum of over 200MPa. It maintains reliable sealing whether under internal or external pressure, making it suitable for ultra-high-pressure scenarios.​

2.4 Low Compression Set​

During long-term use, the product exhibits minimal compression set — the metal body retains its shape stability, and the springs do not lose elasticity due to fatigue. This ensures consistent sealing performance over time, reducing equipment maintenance and replacement costs caused by seal failure.​

2.5 Excellent Adaptability to Harsh Environments​

The metal body itself provides inherent resistance to high/low temperatures and corrosion, and when combined with the reinforcing effect of the springs, Raido’s oring excels in extreme environments:​

• It easily copes with temperature ranges from an ultra-low -196℃ (matching the low-temperature tolerance of traditional models for cryogenic media like liquid oxygen/liquid nitrogen) to an ultra-high temperature above 1000℃ (surpassing the high-temperature limit of some traditional models). It maintains stable sealing performance even during high-low temperature alternating cycles;​

• The corrosion-resistant metal body (e.g., stainless steel, high-temperature alloys) and compatible springs ensure resistance to strong corrosive media such as acids, alkalis, seawater, and radioactive substances, avoiding seal failure due to corrosion.​

3. Application Scenarios​

Leveraging its "extreme condition adaptability" — a core advantage of spring-energized hollow metal orings — Raido’s product is widely applicable in high-end fields with stringent sealing requirements, replacing ordinary rubber orings (poor resistance to high/low temperatures and corrosion) and simple metal orings (poor low-pressure sealing and no wear compensation). Key application areas include:​

3.1 Extreme Temperature Conditions​

• Low-temperature fields: Sealing for liquid oxygen/liquid nitrogen storage tanks, valves in LNG (liquefied natural gas) transmission pipelines, and low-temperature propellant systems in aerospace (temperatures as low as -196℃ to -270℃);​

• High-temperature fields: Sealing for boiler flue dampers, gas turbine shaft ends, automotive exhaust treatment systems, observation windows of industrial kilns, and high-temperature components in aerospace (temperatures up to 600℃ to over 1000℃).​

3.2 High/Low Pressure and Vacuum Conditions​

• High-pressure fields: Sealing for high-pressure cylinder pistons in hydraulic systems, high-pressure wellheads of oil drilling platforms, pump bodies of high-pressure water jets, and ultra-high-pressure valves in high-end equipment (pressures ranging from 20MPa to over 200MPa);​

• Vacuum fields: Sealing for semiconductor vacuum coating machines, vacuum drying oven doors, and aerospace vacuum chambers (vacuum degree up to 10⁻³Pa to 10⁻⁵Pa).​

3.3 Strong Corrosion Conditions​

• Chemical industry: Sealing for inlet/outlet valves of hydrochloric acid/sulfuric acid storage tanks, electroplating tanks, and pesticide production equipment;​

• Marine engineering: Sealing for seawater desalination equipment and hydraulic systems of offshore platforms (resistant to seawater corrosion);​

• Nuclear industry: Sealing for cooling systems of nuclear reactors (resistant to corrosion from radioactive media and high-temperature water);​

Metal Corrugated Reinforced PTFE envelope Gasket (TEFLON + STAINLESS STEEL) Product Description

The metal corrugated  reinforced PTFE envelope Gasket is a composite sealing component that combines the excellent chemical stability of polytetrafluoroethylene (TEFLON) and the high-strength support of stainless steel. With its unique "corrugated  structure + double-layer material" design, it becomes an ideal sealing solution for harsh working conditions in chemical, petroleum, pharmaceutical and other industries.

I. Core Materials: Scientific Integration of Dual Advantages

1、Surface Layer: Polytetrafluoroethylene (TEFLON)

As the direct contact layer of the sealing surface, PTFE material has the characteristic of "the king of corrosion resistance" — it can withstand an extreme temperature range from -200℃ to 260℃, and has no chemical reaction with strong acids (such as hydrochloric acid, sulfuric acid), strong alkalis (such as sodium hydroxide), strong oxidants and various organic solvents, completely solving the leakage problem of traditional gaskets caused by corrosion. At the same time, its ultra-low friction coefficient (only 0.04) can reduce the wear of the sealing surface, and its non-stick surface can avoid medium residue, meeting the cleanliness requirements of the food and pharmaceutical industries.

2、Base Material: Stainless Steel

The corrugated tooth base made of 304 or 316L stainless steel provides strong structural support for the product. The high-strength property of stainless steel (tensile strength ≥ 520MPa) can resist compressive deformation under high-pressure working conditions, while the corrugated tooth design compensates for minor unevenness of the flange surface through the "elastic buffer layer" effect. Even in scenarios with vibration or temperature fluctuation, it can still maintain stable sealing specific pressure, avoiding sealing failure caused by excessive rigidity of the base material.

II. Structural Design: Sealing Innovation of Corrugated Tooth Technology

The product adopts a composite structure of "stainless steel corrugated tooth base + PTFE coating". The peak-valley spacing of the corrugated  is precisely calculated (conventional tooth height: 0.2-0.5mm, tooth pitch: 1-3mm), forming multiple sealing cavities:

• When the flange bolts are tightened, the PTFE surface layer will produce "stepwise deformation" with the compression of the corrugated tooth structure. While filling the flange gap, the peak of the corrugated  forms line contact sealing with the flange surface, greatly improving the sealing specific pressure;

• The corrugated tooth structure of the stainless steel base can effectively disperse pressure, avoiding cold flow phenomenon of PTFE caused by excessive local stress, and prolonging the sealing life;

• The overall structure has both flexibility and rigidity, which can adapt to slight misalignment of the flange during installation, reducing installation difficulty.

III. Performance Characteristics: Core Advantages for Harsh Working Conditions

1.    Wide Temperature Range Sealing: Maintains stable sealing performance in the range of -200℃ (cryogenic working condition) to 260℃ (high-temperature working condition), suitable for scenarios such as refrigeration equipment and high-temperature reaction kettles;

2.       High-Pressure Resistance: Relying on the support of the stainless steel base, it can withstand a maximum working pressure of 30MPa, meeting the sealing needs of oil pipelines and high-pressure valves;

3.       Chemical Inertness: The PTFE surface layer has no corrosion or swelling to almost all chemical media (except molten alkali metals and chlorine trifluoride), suitable for chemical acid-base transportation pipelines;

4.       Long-Term Stability: The corrugated tooth structure reduces the cold flow and creep of PTFE, and the attenuation rate of sealing performance is less than 5% during long-term use (conventional service life: 3-5 years);

5.       Environmental Compliance: The material meets the standards of FDA (U.S. Food and Drug Administration) and RoHS (EU Restriction of Hazardous Substances), and can be used in fields such as food processing and drinking water treatment.

IV. Application Scenarios and Installation & Maintenance

(I) Typical Application Scenarios

• Chemical Industry: Flanges of acid-base storage tanks, feed inlets of reaction kettles, sealing end covers of chemical pumps;

• Petroleum Industry: Valves of oil transmission pipelines, manholes of crude oil storage tanks, sealing surfaces of oil-gas separators;

• Pharmaceutical Industry: Pharmaceutical liquid transmission pipelines, aseptic reaction tanks, sealing doors of freeze dryers;

• Energy Industry: Cooling systems of nuclear power plants, high-temperature steam pipelines of thermal power plants, production equipment for photovoltaic silicon materials.

(II) Installation and Maintenance Points

1. Before installation, clean the flange surface, remove oil stains, impurities and residues of old gaskets to avoid affecting the sealing effect;

        2.  When tightening the bolts, adopt the "diagonal step-by-step tightening" method to ensure uniform force on                    the gasket, avoiding damage to the PTFE surface layer due to local over-tightening;

        3.   If slight leakage occurs after long-term use, properly retighten the bolts (retightening torque shall not exceed                10% of the initial torque) without replacing the new gasket;

        4.  When the medium temperature exceeds 200℃, it is recommended to check the sealing status every 6 months to ensure no deformation of the corrugated tooth structure.

Through "material complementarity + structural innovation", the metal corrugated  reinforced PTFE envelope Gasket perfectly solves the pain point of traditional gaskets being "corrosion-resistant but not pressure-resistant, or pressure-resistant but not corrosion-resistant". It has become a high-end product with both reliability and adaptability in the modern industrial sealing field, providing safe and long-term sealing guarantees for various harsh working conditions.

PTFE (Polytetrafluoroethylene) envelope gaskets, also known as "PTFE encapsulated gaskets," are widely used in industrial sealing applications due to PTFE’s excellent chemical resistance, non-stick properties, and high-temperature stability. Their core design involves a PTFE outer "envelope" that encapsulates a softer, more compressible inner core (e.g., rubber, graphite, or fiber), combining PTFE’s corrosion resistance with the core’s sealing flexibility. 

Below is a detailed classification of PTFE envelope gaskets based on core material, PTFE envelope structure, and application-specific designs, along with their key characteristics and use cases.

 1. Classification by Inner Core Material  

The inner core is critical for achieving effective sealing (since pure PTFE is relatively rigid and prone to creep). Different core materials tailor the gasket’s compressibility, temperature resistance, and cost. 

 2. Classification by PTFE Envelope Structure  

The design of the PTFE outer layer affects the gasket’s sealing performance, installation ease, and resistance to "cold flow" (PTFE’s tendency to deform under pressure over time). 

 2.1 Full Envelope (Standard Type)  

Design: The PTFE sheet fully wraps the inner core, with the edges of the PTFE sealed (e.g., by heat welding or mechanical crimping) to prevent the core from leaking or being exposed to the medium. 

Advantages: Maximum protection of the core from corrosive fluids; suitable for full-face flange sealing. 

Limitation: Slightly lower compressibility than partial envelope types (due to full PTFE coverage). 

Use Case: Most industrial applications (chemical tanks, pipelines, pumps) where the medium is aggressive.

 2.2 Partial Envelope (Exposed Core Type)  

Design: The PTFE envelope covers only the sealing face (the area in contact with the flange) and the outer perimeter of the core; the inner bore (hole) of the gasket leaves the core partially exposed. 

Advantages: Higher compressibility (since less PTFE restricts the core’s deformation); easier to install in tight spaces. 

Limitation: The exposed core may be vulnerable to corrosion if the medium is highly aggressive. 

Use Case: Low-to-moderate corrosion environments (e.g., water treatment, HVAC systems) where compressibility is prioritized.

 2.3 Reinforced Envelope (Anti-Creep Type)  

Design: The PTFE envelope is reinforced with a thin layer of inert material (e.g., glass fiber, carbon fiber, or metal mesh) embedded in the PTFE matrix. 

Advantages: Significantly reduces PTFE cold flow and creep; maintains sealing integrity under long-term pressure or temperature cycles. 

Limitation: Higher cost than standard PTFE envelopes. 

Use Case: High-pressure/high-temperature applications (e.g., steam turbines, chemical reactors) where creep resistance is critical.

 3. Classification by Flange Type & Shape  

PTFE envelope gaskets are customized to match common flange designs, ensuring proper fit and sealing. 

 4. Specialized PTFE Envelope Gaskets  

These are engineered for niche industries with strict requirements (e.g., food safety, ultra-purity, or extreme environments). 

 4.1 FDA-Compliant Gaskets 

Design: Uses food-grade PTFE (e.g., PTFE meets FDA 21 CFR Part 177.1550) and inner cores (EPDM, Silicone) certified for food contact. 

Use Case: Food & beverage processing (dairy, brewing), pharmaceutical manufacturing (drug synthesis), and cosmetics production.

 4.2 High-Purity (Ultra-Clean) Gaskets  

Design: Made with virgin PTFE (no additives) and a core of high-purity graphite or PTFE foam. The envelope is polished to minimize particle shedding. 

Use Case: Semiconductor manufacturing (ultra-pure water systems), laboratory equipment, and biotech (cell culture reactors).

 4.3 Low-Temperature Gaskets  

Design: Inner core of low-temperature-resistant materials (e.g., silicone rubber, expanded PTFE) to maintain flexibility at -200°C to -50°C. 

Use Case: Cryogenic applications (LNG storage, liquid nitrogen pipelines).

 Summary of Key Selection Factors  

To choose the right PTFE envelope gasket, consider: 

1. Medium Properties: Corrosiveness (dictates PTFE grade and core material). 

2. Operating Conditions: Temperature (graphite core for high temp; silicone for low temp) and pressure (reinforced envelope for high pressure). 

3. Flange Type: Full-face vs. ring-type, standard vs. custom shape. 

4. Industry Standards: FDA, ASME, or ISO compliance (for regulated sectors like food/pharma). 

By aligning these factors with the classifications above, you can ensure optimal sealing performance and long service life.

Detailed Introduction to CIPP Type Double-Stage Single-Liner Metal Seal

1. Core Design and Performance Advantages of the Product

The CIPP Type Double-Stage Single-Liner Metal Seal has become a preferred sealing solution for extreme environments, thanks to its double-stage multi-layer metal composite structure. This structure fundamentally ensures the reliability and effectiveness of the seal under harsh conditions such as high temperature, ultra-high vacuum, and high-energy particle beam radiation, providing stable sealing support for high-demand industrial scenarios.

Its innovative proprietary knife-edge design is a major highlight. It not only accurately compensates for deviations in flange flatness, significantly improving installation convenience and ensuring a secure fit between the seal and the flange but also enhances sealing performance while simplifying the installation process. This makes the overall sealing operation more efficient and reliable, effectively reducing construction difficulty and time costs.

2. Groundbreaking Performance Compared with Traditional Seals

In terms of requirements for flange surface roughness, traditional seals usually require the flange surface roughness (Ra) to be controlled between 0.2-0.4, which imposes extremely high demands on flange machining accuracy. However, the CIPP Type Double-Stage Single-Liner Metal Seal launched by Sonkit breaks this limitation. Even if the flange surface Ra value is as high as 0.8-1.6, it can still achieve effective sealing. This greatly reduces the strict requirements for flange machining and lowers the early-stage machining costs of equipment.

At the same time, the knife-edge design of this seal also significantly reduces the demand for bolt preload. This advantage not only reduces the load on the bolts, extending their service life but also lowers the risk of seal failure caused by improper preload control during installation, further improving the stability of the sealing system.

In terms of leakage rate control, professional test verification shows that the leakage rate of the system using Sonkit's CIPP Type Double-Stage Single-Liner Metal Seal can be reduced to 1E-11 mbarl/s. This value far exceeds the original design requirement of 1E-10 mbarl/s, representing a qualitative leap in sealing performance and providing strong technical support for scenarios with high sealing requirements.

3. Typical Application Scenarios

With its outstanding performance, the CIPP Type Double-Stage Single-Liner Metal Seal is widely used in high-end fields with extremely strict sealing requirements, including:

1.       Fusion Reactors: As a key sealing component for fusion reactions, it needs to maintain sealing integrity under extreme working conditions to ensure the safe and stable operation of the reactor. The double-stage multi-layer structure and low leakage rate characteristics of this seal perfectly meet its requirements.

2.       Tokamak Devices: Tokamak devices have complex structures and require highly specialized and precise sealing solutions. This seal can adapt to their complex design while meeting special needs such as plasma confinement and neutron radiation resistance.

3.       Ultra-High Vacuum Applications: In ultra-high vacuum environments, seals need to maintain excellent sealing performance for a long time. The ultra-high vacuum adaptability of this product makes it an ideal choice for such applications.

4.       Laser and Radio Frequency Guidance Systems: These systems have strict requirements for the reliability and stability of seals. This seal can ensure that the system is not disturbed by the external environment during operation, safeguarding guidance accuracy and system performance.

4. Adaptation to Core Performance Requirements in Application Scenarios

1.       Adaptation to Extreme Operating Temperatures: The seal assembly can always maintain structural and sealing integrity within a wide temperature range of -50°C to 350°C. Whether it is material stability in low-temperature environments or deformation resistance in high-temperature environments, it can meet the usage requirements of extreme temperature scenarios.

2.       Guarantee for Plasma Confinement: In scenarios involving plasma confinement such as Tokamak devices, the seal can operate reliably in strong magnetic fields, effectively blocking external interference, ensuring plasma confinement effects, and providing a stable sealing environment for relevant experiments and production processes.

3.       Neutron Radiation Resistance: For scenarios such as fusion reactors that need to withstand neutron radiation, the sealing system can be exposed to neutron radiation environments for a long time without a decline in sealing performance or leakage caused by radiation, ensuring the long-term safe operation of equipment.

4.       Adaptation to Ultra-High Vacuum Environments: In ultra-high vacuum application scenarios, the seal has excellent vacuum retention capability and can maintain stable sealing performance in ultra-high vacuum conditions for a long time, avoiding the impact of seal failure on the vacuum environment.

5.       Adaptability to Complex Structures: Facing equipment with complex structures such as Tokamak devices, this seal, relying on its highly specialized design and precise manufacturing process, can perfectly adapt to the complex structure of the equipment, ensuring reliable sealing in complex installation environments.

A Tri-Clamp Gasket, also known as a tri-lobe gasket or sanitary gasket, is a type of sealing gasket specifically designed for sanitary connections. Below is a detailed introduction to it:

- **Structural Design**: A Tri-Clamp Gasket is typically used in conjunction with clamp fittings. Its assembly consists of two clamps, one gasket, and two pipe fittings. The gasket is placed between the connecting surfaces of the two pipe fittings, and the clamping force of the clamps compresses the gasket, thereby forming a tight, leak-free sealed connection.

- **Material Types**:

    - **EPDM (Ethylene Propylene Diene Monomer)**: It has an operating temperature range of -20°F to 300°F (approximately -29°C to 149°C). It offers excellent high-temperature resistance and good tolerance to animal and vegetable oils, ozone, steam, water, and oxygenated solvents. It is suitable for applications involving CIP (Clean-in-Place) disinfectants like Oxonia and ozonated water.

    - **FKM/Viton (Fluorocarbon Rubber)**: Its operating temperature range is -30°F to 400°F (approximately -34°C to 204°C). It has higher chemical resistance than most elastomers and excellent compatibility with strong acids. However, it is not recommended for continuous use in SIP (Sterilize-in-Place) procedures.

    - **PTFE/Teflon (Polytetrafluoroethylene)**: With an operating temperature range of -100°F to 500°F (approximately -73°C to 260°C), it boasts extremely strong chemical resistance. Nevertheless, it is not advisable for use in scenarios with frequent large temperature fluctuations, as it lacks memory and may experience a "cold flow" phenomenon.

    - **Silicone Rubber**: Its operating temperature range is -40°F to 450°F (approximately -40°C to 232°C). It exhibits chemical resistance to various common chemicals, including acids, alkalis, and steam, but has only average tolerance to oils.

- **Application Fields**: Tri-Clamp Gaskets are widely used in industries with extremely high sanitary requirements, such as the food, dairy, beverage, biotechnology, and pharmaceutical industries. They are used to seal clamp connections in sanitary piping systems, ensuring that the connections between pipes, valves, pumps, and other process equipment are sanitary, preventing product contamination, and guaranteeing product quality and safety.

- **Performance Advantages**:

    - **Good Sanitary Performance**: It has a smooth, non-porous surface without layered grooves or protrusions, which makes it difficult for bacteria to grow and dirt to accumulate. It complies with relevant sanitary standards and certifications such as FDA and USP Class VI.

    - **Reliable Sealing Performance**: Under the clamping force of the clamps, it can form an excellent sealing effect, effectively preventing the leakage of liquids or gases and ensuring the normal operation of the system.

    - **Easy Installation**: No special tools are required; installation and disassembly can be quickly completed using clamps, facilitating the maintenance and cleaning of equipment.