Swagelok® Bulk-Gas Diaphragm Valves (LD Series)
Swagelok LD series bulk gas diaphragm valves offer a combination of strength, flexibility, and cycle life to support a wide range of ultrahigh-purity shutoff, bulk-gas distribution, and isolation applications.
Find More InformationSwagelok® LD series bulk-gas diaphragm valves are engineered for shutoff, bulk-gas distribution, and isolation services at working pressures up to 300 psig (20.6 bar). Three distinct diaphragms provide the ideal combination of strength, flexibility, and cycle life, while the all-metal design reinforces safety and durability.
Swagelok LD series valves also feature an innovative design that eliminates springs and threads in wetted areas, resulting in a cleaner operation and reducing contamination risks. In addition, the unique compensating stem tip design with a PCTFE insert promotes leak-tight shutoff and prevents damage from overtightening.
Specifications
| Working Pressure | Up to 300 psig (20.6 bar) |
| Temperature | –20° to 300°F (–28° to 148°C) |
| Flow Coefficient | Up to 13 |
| Body Materials | CF3M cast stainless steel, forged and bar stock 316L stainless steel |
| Diaphragm Material | 316L stainless steel |
| End Connections | Type: Swagelok® tube fitting, male VCR® face seal fitting, female NPT, female ISO, tube extension Size: 1/4 to 1 in.; 12 to 25 mm |
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Bulk Gas Diaphragm Valves Catalogs
Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.
LD 시리즈 최대 사용 압력 300 psig (20.6 bar) 일반 차단 기능, 벌크 가스 분배 및 차단 서비스 주조, 단조 및 바 스톡 스텐레스강 몸체 재질 1/4 ~ 1 in. 및 12 ~ 25 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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How to Select the Right Valves for Your Industrial Fluid System
Learn how to apply the practical STAMPED method to select the valves most suited to your industrial fluid or sampling system design applications.
How to Isolate Industrial Fluid Systems with Block Valves
The isolation of industrial fluid system lines prior to maintenance is vital to plant safety. One of the safest ways to isolate a fluid system line is to install two block valves. Learn how to design proper configurations for your system.
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。
Q&A：半導体製造の過去・現在・将来
半導体装置メーカー、マイクロデバイス・メーカー、流体システム・ソリューションのプロバイダーが連携することで、数十年間にわたっていかにして半導体市場はムーアの法則の要求に追いつくことができたのでしょうか。これからの展望と併せて紹介します。