{"product_id":"mcdonnell-miller-119700-fs7-4-1-1-4-paddle-style-flow-switch","title":"McDonnell \u0026 Miller 119700 FS7-4 1-1\/4\" Paddle Style Flow Switch","description":"\u003cp\u003eMaintain system safety and operational efficiency with the \u003cstrong\u003eMcDonnell \u0026amp; Miller 119700 FS7-4\u003c\/strong\u003e flow switch. This industrial-grade component is specifically engineered to monitor liquid flow in pipelines, providing a reliable trigger for pumps, valves, or alarms when flow conditions deviate from established parameters.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eFS7-4\u003c\/strong\u003e utilizes a rugged paddle-style mechanism that extends directly into the process piping. As fluid moves past the paddle, the resulting mechanical force actuates an internal switch, signaling the current flow status to your building management or control system. This simple yet highly effective design ensures longevity even in demanding hydronic environments.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Detection:\u003c\/strong\u003e Accurately senses flow or no-flow conditions to protect critical equipment from dry firing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Construction:\u003c\/strong\u003e Engineered to withstand the rigors of industrial hydronic loops and process piping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Integration:\u003c\/strong\u003e Designed for standard 1-1\/4\" pipe configurations for straightforward installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for use in commercial HVAC systems, chiller water loops, fire sprinkler monitoring, and general fluid transfer processes where reliable flow verification is required.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43124279574622,"sku":"119700","price":574.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/119700_image_73fb705f-01f5-4306-abc5-b532fefb810d.png?v=1786034513","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-119700-fs7-4-1-1-4-paddle-style-flow-switch","provider":"National Boiler Supply","version":"1.0","type":"link"}