text.skipToContent text.skipToNavigation
流量传感器

Swagelok® Flow Sensors

Achieve accurate gas flow sensing with the positive actuation of Swagelok FV4 series flow sensors.

Request More Information

Monitor changes in gas system flow with Swagelok FV4 series flow sensors. FV4 series flow sensors contain a snap-action float mechanism with a calibrated orifice that moves up or down in the float guide as flow increases or decreases, providing positive actuation for accurate sensing of gas. A magnet encased in the float above the orifice alternates electrical continuity between leads on an adjacent reed switch to detect flow changes.

An all-welded 316L stainless steel construction ensures fluid containment and enhances durability, and a replaceable switch assembly outside the flow path simplifies maintenance. FV4 series flow sensors are rated for working pressures up to 5000 psig (344 bar).

Specifications

Material316L SS
Temperature–40 to 175°F (–40 to 79°C)
Working PressureUp to 5000 psig (344 bar)

Flow Sensor Catalogs

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

世伟洛克泄漏检测服务

Compressed Gas Leak Detection Services

Receive help identifying and quantifying compressed gas leaks so you can prioritize the most critical issues to address based on potential for emissions reduction and safety, cost, and productivity improvement.

Learn About Leak Detection Services

Swagelok Resources Curated for You

世伟洛克卡套管接头安装完毕
Common Causes and Costs of Fluid System Leaks

Fluid system leaks are a common occurrence in most plants. Learn how and why leaks occur, how to locate and test for them, and ultimately how to develop a strategy to address and reduce leaks plantwide.

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.

世伟洛克现场工程师与客户讨论取样系统评估结果。
Do's and Don'ts for Sampling System Accuracy

Follow these do’s and don’ts to obtain more accurate, representative samples from your industrial sampling system.

工人们讨论工厂的工艺测量
Process Measurement – Impulse Line Best Practices

It can be difficult to identify issues within your process instrumentation application if you focus solely on the transmitter. Learn how to solve problems within your process instrumentation line with tips and best practices from Swagelok.