
Swagelok® Bellows-Sealed Valves
Swagelok bellows-sealed valves are designed to limit the potential for leaks, with many featuring a packless design or welded seals. They provide reliable, leak-tight performance in applications where the seal to atmosphere is critical to keep operators safe and processes functioning as intended.
View Bellows ValvesSwagelok bellows-sealed valves are available in a variety of styles and configurations, allowing users to find options that work well in their general and high-purity applications. Options include gasketed or welded body-to-bellows seals, stem tips for shutoff or regulating service, a variety of end connections, a wide range of flow coefficients, and panel or bottom mounting.
- Specialized Swagelok bellows-sealed valves with micrometer handles allow for precise, repeatable flow setting by allowing stem position changes in as little as 0.001 in. (0.025 mm) increments
- Compact Swagelok bellows-sealed valves for switching service allow for flow to be changed from one line to another using manual and spring-return or double-acting pneumatic actuators
- High-pressure, pneumatically actuated Swagelok bellows-sealed valves can handle elevated working pressures and temperatures to match process requirements
- Select Swagelok bellows-sealed valves feature a secondary containment system that prevents leaks to atmosphere even if the primary seal fails, enhancing reliability, versatility, and safety
Need help choosing bellows valves?
Bellows-Sealed Valves Categories

General-Service Bellows Valves, B and H Series
Ensure reliable shutoff with precision-formed metal bellows valves with gasketed or welded body-to-bellows seals and stem tips for regulating service.

High-Pressure Bellows Valves, HB Series
양방향에서 최대 압력 등급의 전체 메탈 대기 밀폐를 제공하는 고압, 공압 작동식 벨로우즈 밸브를 알아보십시오.

High-Purity Bellows Valves, BN Series
Discover high-purity valves with positive stem retraction, smooth actuation, and union bonnet construction for enhanced cycle life and cleanliness.

방향 전환 서비스용 벨로우즈 밸브, BY 시리즈
방향 전환 서비스에 적합한 BY 시리즈 벨로우즈 밸브에 대해 알아보십시오. 패킹이 없는 컴팩트 디자인과 일관적인 차단이 가능한 Torlon® 스템 가이드.

스페어 부품 및 액세서리
최적의 호환성을 제공하도록 설계된 고품질 부품을 찾아보십시오. 스템 팁 키트, 벨로우즈 키트, 표시기 스위치 키트, 가스켓 키트용 예비 부품 및 액세서리.
Bellows-Sealed Valves Catalogs
Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.
B 시리즈; 최대 사용 압력 1000 psig (68.9 bar); 최대 사용 온도 482°C (900°F); 1/4, 3/8, 1/2 및 3/4 in.; 6, 10 및 12 mm 연결구; 황동, 스텐레스강 및 400 합금 재질
정확하고 반복적으로 일정한 흐름을 유지하기 위한 마이크로미터 핸들; 최대 사용 압력 700 psig (48.2 bar); 최고 온도 482°C (900°F); 316 스텐레스강 구조
Features: Compact, packless valve switches flow from one line to another. Torlon® stem guide ensures proper alignment for consistent shutoff performance. Manual and spring-return and double-acting pneumatic actuators are available. End connections include 1/4 in. Swagelok® VCR® metal gasket face seal fittings and 1/4 in. Swagelok tube fittings.
패킹이 없는 금속 대 금속 외부밀폐 방식; 최대 사용 압력 3500 psig (241 bar); 최고 온도 204°C (400°F); VCR® 양면 접속 피팅, Swagelok® 튜브 피팅 및 용접 연결구
벨로우즈 상부에 보조 밀폐 시스템 제공; 최대 사용 압력 2500 psig (172 bar); 최고 온도 648°C (1200°F); 1/4, 3/8, 1/2, 3/4, 1 in. 및 6, 10, 12 mm 연결구; 스텐레스강 재질
전체 금속 밀폐의 패킹이 없는 밸브; 최대 사용 압력 500 psig (34.4 bar); 최대 사용 온도 93°C (200°F); 1/4에서 1/2 in, 및 6에서 12 mm 연결구

Calculate Flow Rate for the Right Valve Selection
Use our valve flow coefficient (Cv) calculator to chose a valve sized correctly for your needs.
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産業用流体システムに適したバルブを選定する方法
産業用流体システムやサンプリング・システムの設計アプリケーションに適したバルブを選定するためのSTAMPEDメソッドの適用方法を紹介します。

低排出認証付きバルブを使用して、フュージティブ・エミッション(排出物の漏れ)に伴うコストを最小限に抑える
化学/石油精製業界では、フュージティブ・エミッションに関する懸念が高まっています。低排出認証付きバルブを使用することで、施設と収益を保護することができます。今回は、低排出認証付きバルブとは何か、どのように試験を行っているか、そして低排出認証付きバルブを使用するとどのようなメリットが得られるかを紹介します。

ブロック・バルブで一般産業用流体システムを遮断する方法
一般産業用流体システムのメンテナンスを行う際は、プラントの安全を確保するため、事前にラインを遮断する必要があります。流体システム・ラインを安全に遮断できる方法のひとつは、2個のブロック・バルブを並べて取り付ける方法です。今回は、システムに最適な構成を設計する方法を紹介します。

1つの新しいバルブが半導体製造を変える3つの理由
今回は、原子層蒸着(ALD)バルブの最新テクノロジーが、ハイテク半導体メーカーにもたらす影響について紹介します。

ベローズ・シール・バルブ
ベローズ・シール・バルブは、パックレス構造および溶接シールを採用することで、信頼性が高く漏れの無い性能を発揮し、特に大気へのシールが重要な場合に大気への漏れを防止します。一般用途および高純度用途向けに、さまざまな型式、ステム・チップ材質、流量係数(Cv値)範囲、エンド・コネクションを選ぶことができます。