Swagelok® Relief Valves
Swagelok® proportional relief valves provide overpressure protection in general industrial applications with a variety of set pressures available. Bleed and purge valves provide effective bleeding, venting, or draining of signal line pressure to atmosphere.
View Relief ValvesSwagelok® R series proportional relief valves open gradually as pressure increases, providing simple, reliable overpressure protection, protecting workers, and helping to maintain proper process conditions. Set pressures can be configured at the factory or easily adjusted in the field to suit changing operating conditions. Swagelok® RV series medium-pressure relief valves can be used in applications with operating pressures up to 20 000 psig (1378 bar).
Swagelok® PRV series proportional safety relief valves are certified to PED 2014/68/EU Category IV and CE-marked in accordance with the Pressure Equipment Directive as a safety valve according to ISO-4126-1. They are factory-set, tested, locked, and tagged with the set pressure.
Swagelok® BV series bleed valves can be used on instrumentation devices such as multivalve manifolds or gauge valves to allow safe removal of instruments and to assist in the calibration of control devices. They are available with low emission (Low-E) certification according to API 624 to combat fugitive emissions.
Swagelok® P series purge valves are manual bleed, vent, or drain valves. Knurled caps are permanently assembled to valve bodies for safety, and both bleed and purge valves are compact for convenient installation.
Want to know more about relief, bleed, or purge valves?
卸荷阀类别
Relief Valves Catalogs
Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.
特点：气体和液体应用；工作压力：6000 psig (413 bar)；设定压力为 145 至 6000 psig（10.0 至 413 bar）；全 316L 不锈钢结构；1/4 至 1 in. NPT 和 ISO/BSP 平行螺纹端接；通过 PED 97/23/EC IV 类认证
特点：316 不锈钢结构；温度高达 1000°F (537°C)；中压 (MP) 接头，尺寸范围 —1/4 到 1 英寸，压力额定值 — 高达 20 000 psig (1378 bar)；高压 (HP) 接头，尺寸范围 — 1/4 到 9/16 英寸，压力额定值 — 高达 60 000 psig (4134 bar)；NACE® MR0175/ISO15156 合规性
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.
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。
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。
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。
比例卸荷阀
凭借从 10 至 6000 psig（0.7 至 413 bar）的设定压力范围，R 系列比例卸荷阀可为各种液体或气体一般工业应用提供简单可靠的过压保护。这种阀门会随着压力的升高而逐渐打开，并在系统压力降至设定压力以下时关闭。PRV 系列比例安全卸荷阀是经过认证的安全阀，有五种设定弹簧压力范围可供选择，所选设定压力可在出厂前设定、测试、锁定和标记，以确保达到所需的设定值。
排放和吹扫阀
世伟洛克排放阀可用于在拆卸仪表前将信号管路中的压力释放至大气中，或协助校准控制设备。NPT 和 SAE 外螺纹端接可供选择。吹扫阀是带有 NPT、SAE、世伟洛克®; 卡套管接头或卡套管转换接头端接的手动排放、放空或排空阀。