{"product_id":"mcdonnell-miller-135600-51-s-mechanical-water-feeder","title":"McDonnell \u0026 Miller 135600 51-S Mechanical Water Feeder","description":"\u003cp\u003eMaintain optimal water levels in your steam heating system with the \u003cstrong\u003eMcDonnell \u0026amp; Miller 135600\u003c\/strong\u003e mechanical water feeder, model \u003cstrong\u003e51-S\u003c\/strong\u003e. Designed for reliability and longevity, this feeder automatically replenishes boiler water to ensure safe and efficient operation throughout the heating season.\u003c\/p\u003e\u003cp\u003eThe mechanism utilizes a high-precision float assembly that responds directly to fluctuations in the boiler water level. As the level drops, the valve opens to allow makeup water to enter, preventing dry firing and ensuring the longevity of your hydronic system components.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Regulation:\u003c\/strong\u003e Provides consistent water level control to prevent critical steam boiler damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Build:\u003c\/strong\u003e Constructed with heavy-duty components designed for high-pressure industrial and commercial environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Operation:\u003c\/strong\u003e Engineered to minimize maintenance requirements while providing dependable mechanical actuation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Primarily designed for low-pressure steam boilers in commercial and industrial settings, ensuring continuous operational safety and system protection.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43125817540702,"sku":"135600","price":1621.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/135600_image_0e910e24-ac97-4c7b-8904-35668c9b9597.png?v=1786038528","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-135600-51-s-mechanical-water-feeder","provider":"National Boiler Supply","version":"1.0","type":"link"}