Cooling Water Flow Detector
Multi-Voltage - 12V, 24V, and 32V Systems
1" FPT for 1" or 1-1/4" Raw Water Hoses
This one-way flow detector monitors marine engine raw water flow (cooling water) to prevent engine damage due to overheating. It activates a visual or audibile device immediately whenever raw water flow is stopped or impeded. (Visual or audible device must be purchased separately.)
The Aqualarm Cooling Water Flow Detector is unique in the marine electronics industry, developed and patented specifically for marine engines. Upon loss of raw water flow to the engine, it activates an immediate alarm that has been wired to the detector. With today's polluted bays and harbors, it's quite easy to ingest debris or a plastic baggie, interrupting the flow of cool water to the engine. While heat-exchanger-cooled engines will run several minutes without raw water flow before overheating, during that time significant damage will be done to the engine, raw water pump and exhaust system.
This Flow Detector alarms when raw water flow rate falls below the minimum rate that is set for the detector switch to close. This is a two-wire, non-polarity switch that is normally closed and opens at a flow rate from 1.5 to 12 gallons/minute, depending on adjustment. It stays open until flow slows or ceases, at which time it then activates any audible or visual boat alarm connected to the detector.
Specifications: