
Keyence FD-Q20C | Clamp-On Flow Sensor for 20–25 mm Metal Pipes
Keyence FD-Q20C | Non-Contact Clamp-On Flow Sensor for Industrial Piping Overview The Keyence FD-Q20C is a non-contact clamp-on flow sensor designed to measure the flow of liquids in metal pipes with outer diameters of 20–25 mm. With its quick, tool-free installation, IP65-rated enclosure, and wide fluid compatibility, the FD-Q20C is ideal for a variety of industrial applications including cooling systems, chemical processing, and general automation. Utilizing ultrasonic sensing technology, it enables flow monitoring without pipe modification, reducing contamination risks and installation downtime. Key Features Clamp-On Design – No pipe cutting, fluid contact, or contamination Supports Metal Pipes – Works on stainless steel, copper, and iron pipes Wide Pipe Compatibility – Designed for Ø20 mm to Ø25 mm outer diameter Broad Fluid Compatibility – Water, chemicals, oils, and more Digital Display (with controller) – Real-time flow values and diagnostics Quick Setup – Tool-free installation in under a minute Durable Industrial Housing – IP65 rating for harsh environments Compatible with FD-Q Series Controllers Technical Specifications Model: FD-Q20C Compatible Pipe Outer Diameter: Ø20 to Ø25 mm Detection Method: Ultrasonic, clamp-on Supported Pipe Material: Metal (stainless steel, iron, copper) Supported Fluids: Water, coolant, chemicals, oil (consult fluid list) Flow Range: Varies by fluid and pipe; typically 0 to 100 L/min Accuracy: ±3% of reading (typical) Operating Temperature: 0 to +60°C Protection Rating: IP65 Mounting: Clamp-on with integrated locking mechanism Cable Length: Typically 2 m Power Supply: Supplied via controller Applications Cooling Water Monitoring – Prevent overheating in automated lines Chemical Dispensing – Track flow without exposing equipment to chemicals Pump and Flow Verification – Ensure stable operation in real-time Facility and Utility Monitoring – Water, oil, and process line supervision Why Choose the Keyence FD-Q20C? Simple, safe installation without process interruption Reliable flow detection across a wide range of fluids and pipe materials Compact and rugged for industrial use Order Now In stock and ready for fast international shipping.