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.
Categorías de Válvulas Antirretorno
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.
Recambios y Accesorios
Conozca los tapones deflectores y una gran variedad de accesorios para el mantenimiento de las válvulas antirretorno con obturador, incluidos los conjuntos de muelle, cierre y recambio del obturador.
Válvulas Antirretorno Totalmente Soldadas de Alta Pureza Serie CW
El diseño totalmente soldado de las válvulas antirretorno soldadas de alta pureza ofrece una contención fiable del fluido del sistema, mientras que el cuerpo de acero inoxidable 316L ofrece una mayor pureza del material.
Válvulas Antirretorno, Series C, CP, CH
Hay disponibles válvulas antirretorno con obturador de acero inoxidable y latón, con una gran variedad de conexiones finales y presiones de disparo ajustables o fijas.
Válvulas antirretorno para media presión, Serie 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.
Válvulas antirretorno por gravedad, Serie 50
Las robustas válvulas antirretorno por gravedad de acero inoxidable limitan el retorno del caudal a presiones hasta 413 bar (6000 psig) y temperaturas hasta 482°C (900°F).
Válvulas de Exceso de Caudal
Aumente la seguridad del sistema evitando la liberación incontrolada de los fluidos del sistema en caso de rotura de la línea aguas abajo con válvulas de exceso de caudal.
Check Valves Catalogs
Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.
Pressions de service jusqu’à 413 bar (6000 psig); Pressions de tarage réglables ou fixes; Divers raccordements d’extrémité; Matériaux en acier inoxydable 316 et laiton
■ Pressions nominales jusqu'à 4134 bar (60 000 psig)■ Dimensions des raccordements jusqu’à 1 1/2 po et 12 mm■ Produits conformes aux normes NACE® MR0175/ISO15156 disponibles
La conception entièrement soudée permet un confinement fiable du fluide du système., Le débit s’amorce à une différence de pression de moins de 0,14 bar (2 psig)., Le clapet se ferme avec moins de 0,14 bar (2 psig) de contrepression.
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
Les clapets anti-retour Swagelok à levée verticale® limitent le retour de débit pour des pressions allant jusqu’à 413 bar (6000 psig) et des températures allant jusqu’à 482°C (900°F).
Pressions jusqu’à 413 bar (6000 psig), Températures jusqu’à 204°C (400°F), Connexions de 1/8 à 1/2 po. et 6 à 12 mm, Construction en acier inoxydable
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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