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Swagelokバルク・ガス供給用ダイヤフラム・バルブ LDシリーズ

Swagelok® Bulk-Gas Diaphragm Valves (LD Series)

LD series bulk gas diaphragm valves offer a combination of strength, flexiblity, and cycle life to support a wide range of ultrahigh-purity shutoff, bulk-gas distribution, and isolation applications.

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LD series diaphragm valves have a welded diaghragm construction using three diaphragms welded to the stem to prevent leakage. No use of springs or threads in wetted areas enable cleaner operation, and a unique stem tip design promotes leak-tight shutoff. Flow coefficients up to 13 and a variety of body materials and configurations are available to meet a range of design specifications.

Specifications

Working PressureUp to 300 psig (20.6 bar)
Temperature–20° to 300°F (–28° to 148°C)
Flow CoefficientUp to 13
Body MaterialsCF3M cast stainless steel, forged and bar stock 316L stainless steel
Diaphragm Material316L stainless steel
End Connections
TypeSwagelok® tube fitting, male VCR® face seal fitting, female NPT, female ISO, tube extension
Size 1/4 to 1 in.; 12 to 25 mm

LD Series Bulk-Gas Diaphragm Valves Catalogs

Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.

バルブの流量係数(C<sub>v</sub>値)計算ツール

The Right Valve Can Make All the Difference

Use our valve flow coefficient (Cv) calculator to chose a valve sized correctly for your needs.

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Swagelok Resources Curated for You

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How to Select the Right Valves for Your Industrial Fluid System

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一般産業用流体システムにおけるブロック・バルブ
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.

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Find out how collaboration between semiconductor tool OEMs, microchip manufacturers, and fluid system solutions providers has enabled the semiconductor market to keep up with the demands of Moore’s Law for decades, and where we go from here.