{"product_id":"mcdonnell-miller-135200-51-2-m-mechanical-water-feeder","title":"McDonnell \u0026 Miller 135200 51-2-M Mechanical Water Feeder","description":"\u003cp\u003eMaintain consistent water levels in your steam heating system with the robust \u003cstrong\u003e135200\u003c\/strong\u003e, also known as the \u003cstrong\u003eMcDonnell \u0026amp; Miller 51-2-M\u003c\/strong\u003e mechanical water feeder. This essential component is engineered to automatically replenish water to the boiler, preventing dry-fire conditions and ensuring the longevity and safety of your hydronic equipment.\u003c\/p\u003e\u003cp\u003eThis mechanical feeder operates through a reliable float-actuated mechanism. When the water level within the boiler drops below the set point, the float mechanism triggers the feeder valve to open, allowing make-up water to enter the system until the desired level is restored. Its rugged design is built to withstand the demanding conditions of commercial and industrial steam environments.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Regulation:\u003c\/strong\u003e Ensures precise, gravity-fed water make-up without complex electronic sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Construction:\u003c\/strong\u003e Features high-grade materials designed for long-term durability in high-pressure steam settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Enhancement:\u003c\/strong\u003e Acts as a critical secondary defense against low-water scenarios in boiler systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for commercial low-pressure steam boiler installations, industrial process heating systems, and multi-unit residential building boiler rooms requiring automated water level management.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43125817311326,"sku":"135200","price":1558.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/135200_image_5a52e4d0-3296-45dc-b98f-cda5760d9c43.png?v=1786038501","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-135200-51-2-m-mechanical-water-feeder","provider":"National Boiler Supply","version":"1.0","type":"link"}