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.

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

65800 Single Channel Zener Barrier

54800 Dual 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