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Bellows-Sealed Valve

Swagelok® Bellows-Sealed Valves

Swagelok bellows-sealed valves are designed to limit the potential for leaks, with many featuring a packless design or welded seals. They provide reliable, leak-tight performance in applications where the seal to atmosphere is critical to keep operators safe and processes functioning as intended.

View Bellows Valves

Swagelok bellows-sealed valves are available in a variety of styles and configurations, allowing users to find options that work well in their general and high-purity applications. Options include gasketed or welded body-to-bellows seals, stem tips for shutoff or regulating service, a variety of end connections, a wide range of flow coefficients, and panel or bottom mounting.

  • Specialized Swagelok bellows-sealed valves with micrometer handles allow for precise, repeatable flow setting by allowing stem position changes in as little as 0.001 in. (0.025 mm) increments
  • Compact Swagelok bellows-sealed valves for switching service allow for flow to be changed from one line to another using manual and spring-return or double-acting pneumatic actuators
  • High-pressure, pneumatically actuated Swagelok bellows-sealed valves can handle elevated working pressures and temperatures to match process requirements
  • Select Swagelok bellows-sealed valves feature a secondary containment system that prevents leaks to atmosphere even if the primary seal fails, enhancing reliability, versatility, and safety

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Faltenbalgventile — Kategorien

Faltenbalg-Dosierventile, Serie BM

Faltenbalg-Dosierventile, Serie BM

Zuverlässige Faltenbalgventile für die Dosierung mit Stellantrieb aus gehärtetem Edelstahl, max. Durchfluss nach sechs Umdrehungen und geschlitzten Griffen.

Faltenbalg-Ventilblöcke mit mehreren Ventilen — Serie V3

Faltenbalg-Ventilblöcke mit mehreren Ventilen — Serie V3

世伟洛克® 3 阀组采用波纹管密封阀,适用于防流体泄漏要求较高的系统。

Faltenbalgventil, allgemeiner Einsatz, Serien B und H

Faltenbalgventil, allgemeiner Einsatz, Serien B und H

Präzisionsgeformte Faltenbalgventile aus Metall mit Dichtung oder Schweißverbindung zwischen Ventilkörper und Faltenbalg und Spindelspitzen.

Hochdruck-Faltenbalgventile (Serie, HB)

Hochdruck-Faltenbalgventile (Serie, HB)

Pneumatisch betriebene Hochdruck-Faltenbalgventile mit metallischer Dichtung zur Atmosphäre und voller Druckstufe in beide Richtungen.

Hochreine Faltenbalgventile, Serie BN

Hochreine Faltenbalgventile, Serie BN

Hochreine Ventile mit positiver Spindelrückführung, leichtgängiger Betätigung und Überwurfmutter – für eine optimierte Lebensdauer und Sauberkeit.

切换用波纹管密封阀,BY 系列

切换用波纹管密封阀,BY 系列

了解切换用 BY 系列波纹管密封阀。紧凑型无填料设计,配备 Torlon® 阀杆导轨,可实现一致的关断性能。

备件和附件

备件和附件

查找专为实现兼容性而设计的高品质元件。阀杆头成套件、波纹管成套件、指示开关成套件和垫片成套件的备件和附件。

带辅助填料的高温波纹管阀,U 系列

带辅助填料的高温波纹管阀,U 系列

世伟洛克® U 系列波纹管密封阀具有防止大气泄漏的二级密封系统,从而提高了可靠性和通用性。

气动执行机构

气动执行机构

波纹管密封阀采用高品质气动执行机构可提高系统性能,实现可靠、精确的流体控制。

Bellows-Sealed Valves Catalogs

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

Swagelok flow coefficient (C<sub>v</sub>) calculator for valves

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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Swagelok Resources Curated for You

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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.

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Minimize the Costs of Fugitive Emissions with Low-E Valves

Fugitive emissions are a growing concern in the chemical and petroleum refining industry. Certified low-emissions (Low-E) valves can protect your facility and bottom line. Learn what they are, how they are tested, and how they can help you in this post.

Block valves in an industrial fluid system
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.

Cleanroom assembly of a Swagelok ALD20 UHP valve for semiconductor industry use
One New Valve. Three Reasons It Could Change Semiconductor Manufacturing

Find out how the latest innovation in atomic layer deposition (ALD) valve technology is changing the game for high-tech semiconductor manufacturers.

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