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针阀

Swagelok® Needle and Metering Valves

Needle valves provide reliable flow control for a range of applications using a variety of stem designs, flow patterns, materials, and end connections in designs such as integral-bonnet and union-bonnet. Metering valves provide the ability to make fine adjustments to accurately control system flow in low- or high- pressure, and low-, medium-, or high- flow applications.

Needle and Metering Valves Catalogs

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

世伟洛克阀门流量系数 (C<sub>v</sub>) 计算器

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

流体取样系统的阀门选型
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.

减少化工和精炼行业中的逸散性排放
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.

工业流体系统中的截止阀
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.

应用于半导体行业的世伟洛克 ALD20 UHP 阀的无尘室组件。
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.

针阀和计量阀

Needle and Metering Valves

Needle Valves

Needle valves provide reliable and consistent flow control, are offered in a variety of stem designs, materials, sizes, and end connections, and have been engineered to withstand corrosive and extreme conditions. General utility service, integral-bonnet, screwed-bonnet, forged-body, toggle, severe-service union-bonnet, instrumentation blowdown, compact gauge, non-rotating stem, and rising plug valves are available with flow coefficients ranging from 0.12 to 2.4 and pressure ratings up to 45000 psig (3100 bar). Flow patterns include straight, angle, and cross, with actuation options including both manual and pneumatic.

Metering Valves

Metering valves deliver accurate flow rate control in analytical, instrumentation, and research applications, are suitable for low- and high-pressure situations, provide fine adjustments for precision applications with flow coefficients from 0.004 to 0.16 for low-, medium-, and high-flow applications. Flow patterns include straight, angle, cross, and double with pressure ratings up to 5000 psig (344 bar). Knurled, round, vernier, slotted, and adjustable-torque handle options allow for repeatable flow adjustments, enhanced control for setting flows, or flow setting adjustment with a screwdriver in your low-pressure applications.