McDonnell & Miller FS6-3/4 High Sensitivity Liquid Flow Switch

McDonnell & Miller FS6-3/4 High Sensitivity Liquid Flow Switch is designed for precise liquid flow detection in in-line installations. This high-sensitivity in-line flow switch uses a compact 3/4 inch nominal size with threaded end connections and an SPDT snap switch for versatile control.

Operating across a wide range, it handles up to 7.4 A at 120 VAC and 3.7 A at 240 VAC, with a 125 VA input rating at 120/240 VAC, 50/60 Hz. The flow specification covers 0.12 to 2.5 GPM in flow mode and 0.06 to 1.5 GPM when no flow is present, making it ideal for boiler feeds, pumps, or water systems. The unit withstands temperatures from 32 to 300°F and stays within a 100 PSI pressure rating, ensuring reliability in demanding environments. It is UL listed for Canada and US, confirming compliance and safety.

Features

• Very High Flow Capacity for reliable operation across wide flow ranges
• In-line, 3/4" nominal size with durable threaded ends
• SPDT snap switch for straightforward control and wiring
• Sensitivity adjustable screw for precise detection
• Switch compartment design protects components and extends life
• UL listed (Canada and US) for compliance and safety