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 |
Have questions about bulk-gas diaphragm valves?
Bulk Gas Diaphragm Valves Catalogs
Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.
Druckraten bis 20,6 bar (300 psig); Absperrung, Bulkgasverteilung und Isolierung; Körper gegossen, geschmiedet und aus Edelstahl Stangenmaterial; Endanschlüsse 12 bis 25 mm und 1/4 bis 1 Zoll.
Calculate Flow Rate for the Right Valve Selection
Use our valve flow coefficient (Cv) calculator to chose a valve sized correctly for your needs.
Use the ToolSwagelok Resources Curated for You
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.
블록 밸브로 산업용 유체 시스템을 격리하는 방법
플랜트 안전을 유지하려면 유지보수 작업 전에 산업용 유체 시스템 라인을 격리하는 것이 필수입니다. 유체 시스템 라인을 격리하는 가장 안전한 방법은 블록 밸브 두 개를 설치하는 것입니다. 시스템에 적합한 구성을 설계하는 방법을 알아보십시오.
하나의 새로운 밸브, 반도체 제조 기술을 바꿀 수 있는 세 가지 이유
혁신적인 최신 원자층 증착(ALD, Atomic Layer Deposition) 밸브 기술이 어떻게 첨단 기술 반도체 제조 시장을 변화시킬 수 있는지 소개합니다.
Q&A: Entwicklungen und Trends in der Halbleiterherstellung
In diesem Artikel beschäftigen wir uns damit, wie die Zusammenarbeit zwischen Herstellern von Halbleiter-Fertigungsanlagen, Chipproduzenten und Fluidsystemanbietern in der Halbleiterindustrie über Jahrzehnte hinweg dazu beigetragen hat, dass das Mooresche Gesetz eingehalten werden konnte. Zudem werfen wir einen Blick in die Zukunft dieser schnelllebigen Branche.