{"product_id":"mcdonnell-miller-135000-51-2-mechanical-water-feeder-and-lwco","title":"McDonnell \u0026 Miller 135000 51-2 Mechanical Water Feeder and LWCO","description":"\u003cp\u003eReliable water level regulation is essential for the longevity of your steam heating system, and the \u003cstrong\u003e135000\u003c\/strong\u003e McDonnell \u0026amp; Miller \u003cstrong\u003e51-2\u003c\/strong\u003e provides a robust solution for maintaining proper boiler levels. This mechanical water feeder serves as a critical safety component by automatically replenishing water while providing low water cut-off functionality to protect your equipment from dry-firing damage.\u003c\/p\u003e\u003cp\u003eThe mechanism operates through a float-actuated valve assembly that detects fluctuations in the boiler water line. As the water level drops, the float sinks, opening the feed valve to allow makeup water to enter the system. When the level reaches the set point, the valve closes, ensuring continuous and precise control without the need for complex electronic sensors in standard applications.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Regulation:\u003c\/strong\u003e Ensures consistent water level maintenance to prevent system shutdown.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Protection:\u003c\/strong\u003e Integrated low water cut-off (LWCO) prevents boiler damage during low-water conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Design:\u003c\/strong\u003e Built to withstand the harsh thermal and pressure demands of residential and commercial steam boilers.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for commercial and industrial low-pressure steam boilers requiring dependable, mechanical level monitoring and automated makeup feed systems.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43125817114718,"sku":"135000","price":1622.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/135000_image_1c17672d-1fae-40aa-b72f-074b36b7ec43.png?v=1786038473","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-135000-51-2-mechanical-water-feeder-and-lwco","provider":"National Boiler Supply","version":"1.0","type":"link"}