FCI Flow Switches

Fluid Components International (FCI) offers a comprehensive line of electronic flow switches designed for the most demanding industrial applications. Utilizing patented thermal dispersion technology, these switches provide highly accurate and repeatable setpoint detection for air, gases, and liquids. Because they contain no moving parts, FCI flow switches eliminate the mechanical wear and clogging common with traditional technologies, ensuring long term reliability and virtually zero maintenance.

Core Product Offerings

To provide a well rounded overview for your customers, these series represent the most popular and versatile solutions in the FCI catalog:

1. FLT93 Series FlexSwitch
The FLT93 Series is the industry standard for ruggedness and flexibility. Known as the FlexSwitch, a single instrument can be field configured to monitor flow, level, or temperature.

• Superior Accuracy: Precision temperature compensation ensures setpoint stability even in processes with wide temperature swings.
• Dual Trip Points: Features dual independent SPDT relays for multiple alarm combinations, such as high flow and low flow or flow and temperature.
• Extreme Durability: Available in all-welded 316L stainless steel or exotic materials for corrosive and high pressure environments.

2. FS10 Series Flow Switch and Monitor
The FS10 Series is a universal solution for general purpose pipe insertion or specialized analyzer sampling systems.

• Compact Design: Ideal for simple insertion into pipes or square ducts, providing both a switch output and a 4-20 mA trending signal.
• FS10A Analyzer Specialist: Specifically designed for gas and liquid process analyzer sampling systems, fitting easily into standard tube tees.
• Visual Interface: Features a top-mounted LED array for at-a-glance verification of flow status and alarm conditions.

Selection Guide by Application

Expert Support and Technical Services

Selecting the right switch requires a deep understanding of your specific process fluid and conditions. Our technical teams provide expert guidance from initial selection through to field commissioning. With certifications including SIL 2 and global hazardous area approvals (FM, ATEX, IECEx), these products are engineered for safety and performance in critical environments.