The Dwyer Instruments HFO-23202 is a reliable flow alarm designed for continuous monitoring and control of flow rates in industrial processes. This model, part of the Series HFO, offers a flow range of 0.2-2.0 GPM (0.75-7.5 LPM) water and features a 1/2″ female NPT connection. Its rugged cast aluminum NEMA 4X (IP65) enclosure ensures dependable operation in outdoor or demanding environments.
Key Features & Highlights
- Continuous Flow Monitoring: Provides real-time flow rate indication and alarm control.
- Adjustable Set Points: Field-adjustable alarm settings for increasing or decreasing flow, with two 10A SPDT limit switches.
- Direct Reading Scale: Integral scale allows for easy local flow rate reading.
- Versatile Mounting: Designed to mount in any orientation, eliminating the need for straight inlet/outlet piping.
- Durable Construction: Cast aluminum NEMA 4X (IP65) enclosure protects against water, dust, and corrosion.
- Easy Installation: 1/2″ female NPT connections simplify integration into existing systems.
Applications
The HFO-23202 is ideal for water treatment, chemical processing, HVAC systems, and other industrial applications where reliable flow monitoring and alarm control are critical. Its robust design and flexible mounting options make it suitable for both indoor and outdoor installations.




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