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.
逆止弁のカテゴリー
Válvulas Antirretorno de Polímero de Ultra Alta Pureza, Serie CHP
Swagelok tiene disponibles válvulas antirretorno de fluoropolímero serie CHP para las aplicaciones de ultra alta pureza.
Válvulas Antirretorno para Hidrógeno
Enhance safety in hydrogen applications with Swagelok® hydrogen FK check valves, offering reliable shut-off, unidirectional flow, and high-pressure support.
スペアー・パーツ／アクセサリー
ポペット式逆止弁のメンテナンス用の交換用部品／アクセサリーとして、デフレクター・キャップやメンテナンス用アクセサリー（スプリング・キット、シール・キット、ポペット交換キットなど）を幅広く取り揃えています。
ポペット式逆止弁、C / CP / CH シリーズ
ポペット式逆止弁（材質：ステンレス鋼または真ちゅう）は、さまざまなエンド・コネクション、そしてクラッキング圧力固定型またはクラッキング圧力調節可能型を選ぶことができます。
ミディアム・プレッシャー逆止弁、CV シリーズ
Las válvulas antirretorno de media presión están diseñadas para la contención de la presión y el control de los fluidos del sistema para evitar el retorno del caudal.
Check Valves Catalogs
Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.
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
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