Swagelok® Check and Excess Flow Valves
Swagelok inline check valves come in a range of adjustable and fixed cracking pressures to control back flow in general-service and high-purity applications. Excess flow valves enhance system integrity and safety by eliminating the need for a bypass mechanism.
Check Valves | Designed for fluid flowing in one direction
Excess Flow Valves | Stop the release of excess flow downstream
Swagelok® check valves are designed to allow fluids to flow in one direction only. Our check valves are available in a variety of designs, including poppet, lift, and all-welded versions for use in general-service or high-purity applications, including those featuring medium or high pressures.
Swagelok check valves are available with a variety of end connections and sealing materials, allowing users to find easy-to-integrate solutions compatible with their systems and process media. Certain Swagelok check valves feature all-welded designs to provide reliable containment of system fluid in high-purity applications, and some are composed of ultrahigh-purity fluoropolymer and feature no O-rings, maximizing flow while reducing pressure drop, eliminating no-flow areas, and providing excellent leak integrity.
Swagelok® XS series excess flow valves have a slotted poppet which moves to the tripped position when excess flow occurs downstream, stopping uncontrolled release of system media. They then reset when pressure equalizes. These valves eliminate the need for a complex bypass mechanism while reducing maintenance time.
Learn the differences between cracking pressure and resealing pressure to see if your check valve is working properly.
Категории обратных клапанов
Clapets anti-retour en polymère très haute pureté, série CHP
Swagelok propose des clapets anti-retour en fluoropolymère (série CHP) qui empêcheront toute inversion de l’écoulement dans des applications très haute pureté.
Clapets anti-retour pour l’hydrogène
Enhance safety in hydrogen applications with Swagelok® hydrogen FK check valves, offering reliable shut-off, unidirectional flow, and high-pressure support.
Clapets anti-retour pour moyenne pression, série CV
Les clapets anti-retour pour moyenne pression sont conçus pour contenir la pression du système et contrôler les fluides afin d’empêcher toute inversion de l’écoulement.
Clapets anti-retour, séries C, CP et CH
Découvrez des clapets anti-retour en acier inoxydable ou en laiton proposés avec toutes sortes de raccordements d’extrémité et diverses pressions de tarage fixes ou réglables.
Pièces détachées et accessoires
Découvrez des bouchons déflecteurs et explorez toute une gamme d’accessoires pour entretenir les clapets anti-retour, notamment des kits de remplacement de ressort, d’étanchéité et de clapet.
Клапаны, регулирующие избыточный расход
Клапаны регулировки избыточного расхода повышают безопасность системы, предотвращая неконтролируемый выброс рабочей среды в случае разрыва линии.
Обратные клапаны высокой степени чистоты под приварку, серия CW
Цельносварная конструкция обратных клапанов высокой степени чистоты обеспечивает надежную герметичность системы, а корпус из нержавеющей стали 316L гарантирует повышенную чистоту материала.
Обратные клапаны с подъемной тарелкой, серия 50
Robustes et entièrement fabriqués en acier inoxydable, les clapets anti-retour à levée verticale limitent l’inversion de l’écoulement à des pressions allant jusqu’à 413 bar (6000 psig) et des températures allant jusqu’à 482°C (900°F).
Catálogos de Válvulas Antirretorno
Encuentre información detallada de producto, incluidos materiales de construcción, valores nominales de presión y temperatura, opciones y accesorios.
Features: Working pressures up to 6000 psig (413 bar); Adjustable and fixed cracking pressures Variety of end connections; 316 stainless steel and brass materials
Swagelok® offers medium- and high-pressure fittings, tubing, valves, and related accessories with temperatures up 1000°F (537°C), pressure ratings up to 60 000 psig (4134 bar) in sizes ranging from 1/4 to to 1 in. for medium-pressure products and 1/4 to 9/16 in. for high-pressure products. NACE® MR0175/ISO15156 compliance is available.
Features: All-welded design provides reliable containment of system fluid; Forward flow starts at less than 2 psig (0.14 bar) pressure differential; Valve closes with less than 2 psig (0.14 bar) back pressure; 316L SS body offers enhanced material purity
Features: Alloy 625, alloy 825, and Alloy 2507 super duplex stainless steel materials; Available for CH4 adn Ch8 series check valves; Working pressures up to 6 000 psig (413 bar); 1/4 to 1/2 in. Swagelok tube fitting or NPT end connections; Fixed cracking pressures: 1 to 25 psi (0.07 to 1.8 bar)
Features: Modified PTFE wetted components meet SEMI Standard F57-0301 for ultrahigh-purity system components; Fine thread flare and Nippon Pillar® Super 300 end connections; Low cracking and reseal pressure
Rugged, all-stainless steel construction; Reverse flow coefficient less than 0.1 % of forward flow coefficient; No springs or elastomers; Compact size
Stop uncontrolled release of system media if downstream line ruptures. Features: Pressures up to 6000 psig (413 bar); Temperatures up to 400°F (204°C); 1/8 to 1/2 in. and 6 to 12 mm end connections; Stainless steel construction
Calcular el Caudal para Seleccionar Las Válvulas Correctas
Utilice nuestra calculadora del coeficiente de caudal de válvulas (Cv) para seleccionar una válvula del tamaño adecuado a sus necesidades.
Utilice la HerramientaRecursos Swagelok Elaborados para Vd.
산업용 유체 시스템에 적합한 밸브를 선정하는 방법
산업용 유체 혹은 샘플링 시스템 설계 애플리케이션에 가장 적합한 밸브를 선정할 때 유용한 STAMPED 방법을 어떻게 적용하는지 소개합니다.
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。
瀋陽ブロワー・ワークス・グループ、安全性と信頼性の向上を実現
瀋陽ブロワー・ワークス・グループ・コーポレーションは、スウェージロック上海のサポートによって、顧客のアプリケーションの一貫性、信頼性、コスト削減を実現したばかりか、自社の安全性および生産効率も向上させることができました。
バルブやホースのタグを用いたメンテナンス・プログラム改善策
今回は、一般産業用流体システム全体でホースとバルブを対象とするタグ・システムを導入することで、メンテナンスの簡素化とシステム停止時間の最短化を実現する方法について、スウェージロックの専門スタッフ2人が紹介します。