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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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波纹管密封阀类别

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。

波纹管密封多阀阀组,V3 系列

波纹管密封多阀阀组,V3 系列

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。

计量波纹管阀,BM 系列

计量波纹管阀,BM 系列

可靠的计量波纹管阀具有硬化不锈钢执行机构、六圈最大流量和用于螺丝刀调节的开槽手柄。

通用波纹管阀,B 和 H 系列

通用波纹管阀,B 和 H 系列

使用精密成形的金属波纹管阀,确保可靠关断,波纹管阀体与波纹管之间采用垫片密封或焊接密封,阀杆头用于调节服务。

高压波纹管阀,HB 系列

高压波纹管阀,HB 系列

探索高压、气动波纹管密封阀,该阀采用全金属密封与大气隔离,并在任一流向具有全压力额定值。

高纯度波纹管阀,BN 系列

高纯度波纹管阀,BN 系列

了解具有可靠阀杆回缩、平稳驱动和联合阀帽结构的高纯阀门,以提高循环寿命和清洁度。

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

Valve selection for  fluid sampling systems
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.

减少化工和炼油行业中的逸散性泄漏
使用低泄漏阀门尽可能地降低逸散性泄漏的成本

逸散性泄漏问题在化工和炼油行业中日益受到关注。通过认证的低泄漏(Low-E) 阀可以保障您的设施和基本要求。在这篇文章中了解何为低泄漏、如何对其进行测试以及它们是如何帮助您的。

工业流体系统中的截止阀
如何使用截止阀隔离工业流体系统

在维护之前,隔离工业流体系统管路对于工厂的安全至关重要。隔离流体系统管路的安全方法之一是安装两个截止阀。了解如何为您的系统设计正确的配置。

应用于半导体行业的世伟洛克ALD20超高纯阀洁净室组装
一种全新的阀门。该阀能改变半导体制造的三大原因

了解原子层沉积 (ALD) 阀门技术的前沿创新如何改变高科技半导体制造商的游戏规则。

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