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
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。
Check Valves Catalogs
Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.
■ 最高使用圧力：41.3 MPa／■ クラッキング（吹き出し）圧力：調節可能型／固定型／■ 豊富なエンド・コネクション／■ 材質：316ステンレス鋼、真ちゅう
■ 最高使用圧力：413.4 MPa／■ エンド･コネクション・サイズ：1 1/2 インチ、12 mmまで／■ NACE® MR0175/ISO 15156に準拠した製品もございます
■ 溶接式デザインにより、システム流体を確実に封止／■ 0.014 MPaまでの差圧で正方向へ流れ出す／■ 0.014 MPaまでの逆圧で再シールを行う。／■ 316Lステンレス鋼製ボディにより、ボディ材の清浄度／純度が向上／■ 接液・接ガス部の表面仕上げの選択が可能（標準または高純度プロセス仕上げ）／■ 超高純度工程仕様（Swagelok SC-01仕様）に基づいたクリーニングとパッケージングを行うこともできます（オプション）。／■ エンド・コネクション：チューブ突き合わせ溶接、めすVCR® 継手、一体型おすVCR継手、回転可能型おすVCR継手、Swagelokチューブ継手
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)
■ 次世代PTFE製接液・接ガス部コンポーネント：超高純度システム・コンポーネント向けのSEMI F57-0301 に適合／■ エンド・コネクション：フレアー継手、スーパー300 タイプピラーフィッティング／■ 低いクラッキング圧力および再シール圧力
■ 構成部品はすべてステンレス鋼製で、頑丈／■ 逆方向からの流れの流量係数は、正方向の流量係数の0.1％未満／■ スプリング、エラストマーの使用なし／■ コンパクトなデザイン
■ 最高使用圧力：41.3 MPa／■ 最高使用温度：204℃／■ エンド・コネクション・サイズ：1/8 インチから1/2 インチまで、6 mmから12 mmまで／■ 材質：ステンレス鋼
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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