Flow Switches

Gems Sensors offers a wide selection of flow switches designed for dependable flow/no-flow detection in liquids and gases. Built with corrosion-resistant materials like stainless steel, Ryton®, and polypropylene, these switches operate at preset flow rates from 50 cc/min to 100 GPM. Ideal for protecting equipment, automating shutdowns, and ensuring system safety in harsh environments.

54800 Series Dual Channel Zener Barrier
The 54800 Series is best suited for instrumentation that produces an output (signal conditioners) re...
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65800 Series Single Channel Zener Barrier
The 65800 Series Zener Barriers offer a compact, easy-to-install design, ideal for mounting multiple...
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Reliable Flow Switches for Liquid & Gas Monitoring

Explore Gems Sensors’ piston, shuttle, paddle, and electronic flow switches—engineered for accurate flow/no-flow detection in industrial and OEM systems.

Piston-Type

Compact Design: Perfect for low flow rate applications
Versatile Applications: Ideal for lubrication systems, chillers, and semiconductor equipment
Setpoint Options: Available with fixed or adjustable setpoints for precise control

Shuttle-Type

Ideal for Moderate to High Flow Rates: Designed for demanding applications
Minimal Pressure Drop: Maintains system efficiency and performance
Common Applications: Perfect for fuel systems, compressors, and similar setups

Paddle-Type

Designed for Large Pipe Sizes: Perfect for high-pressure systems and industrial applications
Patented Cam Design: Ensures low restriction and efficient flow performance
Common Applications: Boilers, turbines, and heat exchangers for reliable operation

Electronic Flow

Visual Indication with Electronic Outputs: Combines clear status display with advanced signal options
Easy Integration: Seamlessly connects to automated systems for improved efficiency
Predictive Maintenance Ready: Ideal for monitoring and proactive system management

Flow Switches

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Series

54800 Series Dual Channel Zener Barrier

65800 Series Single Channel Zener Barrier

Reliable Flow Switches for Liquid & Gas Monitoring

Piston-Type

Shuttle-Type

Paddle-Type

Electronic Flow

Flow Switches

Piston-Type

Shuttle-Type

Paddle-Type

Electronic Flow