{"product_id":"mcdonnell-miller-132700-series-47-water-feeder","title":"McDonnell \u0026 Miller 132700 Series 47 Water Feeder","description":"\u003cp\u003eAutomatic water level maintenance is critical for the safety and longevity of your steam heating system, which is where the \u003cstrong\u003e132700\u003c\/strong\u003e McDonnell \u0026amp; Miller Series 47 Water Feeder excels. By reliably monitoring and regulating the water level within the boiler, this unit prevents dry-firing conditions and helps maintain consistent pressure throughout your hydronic loop. Designed for high-performance steam applications, the \u003cstrong\u003eSeries 47\u003c\/strong\u003e feeder ensures your system remains operating within safe design parameters.\u003c\/p\u003e\u003cp\u003eThis mechanical feeder operates using a float-actuated valve mechanism that responds precisely to changing water levels. When the water drops below the required operating setpoint, the mechanical linkage opens the valve to replenish the system from the supply line, automatically closing once the target level is restored. This robust design minimizes the need for manual monitoring and protects the integrity of the boiler vessel against thermal stress.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Regulation:\u003c\/strong\u003e Maintains consistent water levels without constant human intervention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Protection:\u003c\/strong\u003e Reduces the risk of boiler damage caused by low water conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Engineered with industrial-grade materials for long-term service in high-heat environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Sensing:\u003c\/strong\u003e Utilizes a responsive float assembly to ensure accurate water level recovery.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Primarily installed in commercial and residential steam boiler systems requiring dependable, automatic water makeup to ensure peak boiler efficiency and safety.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43125813215326,"sku":"132700","price":1015.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/132700_image_4e249fc2-7e2a-4aa5-b6c1-ec2ba166036f.png?v=1786037985","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-132700-series-47-water-feeder","provider":"National Boiler Supply","version":"1.0","type":"link"}