{"product_id":"mcdonnell-miller-114760-fs5-3-4-3-4-flow-switch","title":"McDonnell \u0026 Miller 114760 FS5-3\/4 3\/4\" Flow Switch","description":"\u003cp\u003eMaintain precise liquid flow monitoring in your heating and cooling systems with the \u003cstrong\u003eMcDonnell \u0026amp; Miller 114760\u003c\/strong\u003e, model \u003cstrong\u003eFS5-3\/4\u003c\/strong\u003e. This high-quality flow switch is designed to provide reliable circuit control by detecting the presence or absence of liquid flow, ensuring your equipment operates only under safe and appropriate conditions.\u003c\/p\u003e\u003cp\u003eThis device utilizes a paddle-actuated mechanism that responds to the kinetic energy of the fluid within your piping. As flow occurs, the paddle moves, triggering a mechanical switch that completes or interrupts the electrical circuit, allowing for automated pump control or safety signaling.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Precision:\u003c\/strong\u003e Highly sensitive paddle mechanism ensures accurate detection of liquid movement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Construction:\u003c\/strong\u003e Built to withstand the rigors of industrial and commercial hydronic environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperational Reliability:\u003c\/strong\u003e Minimizes downtime by preventing equipment damage caused by dry running or lack of flow.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for monitoring flow in chilled water systems, hot water heating boilers, booster pump systems, and liquid transfer lines where automated flow-based safety cutoffs are required.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43123966607454,"sku":"114760","price":374.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/114760_image_4e9528fe-ab7d-4228-88aa-ef9019dee714.png?v=1786027275","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-114760-fs5-3-4-3-4-flow-switch","provider":"National Boiler Supply","version":"1.0","type":"link"}