{"product_id":"mcdonnell-miller-313600-37a-130-replacement-float-for-847-and-851","title":"McDonnell \u0026 Miller 313600 37A-130 Replacement Float for 847 and 851","description":"\u003cp\u003eEnsure reliable liquid level regulation in your boiler assembly by replacing worn components with the \u003cstrong\u003e313600\u003c\/strong\u003e McDonnell \u0026amp; Miller \u003cstrong\u003e37A-130\u003c\/strong\u003e replacement float. Designed specifically for the 847 and 851 series, this float serves as a critical internal element for maintaining precise water levels and protecting system integrity against dry-firing or overflow conditions.\u003c\/p\u003e\u003cp\u003eThis component functions by responding to buoyancy changes within the float chamber. As the water level shifts, the float assembly triggers the mechanical linkage connected to the switch mechanism, effectively communicating the current state of the boiler water level to the control system to ensure seamless operation and safety monitoring.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Engineered with corrosion-resistant materials for extended service life in hydronic environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Compatibility:\u003c\/strong\u003e Precision-fit design ensures seamless integration with 847 and 851 model float chambers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Buoyancy:\u003c\/strong\u003e Maintains precise response times for consistent liquid level detection and signaling.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Primarily used for maintenance and repair of McDonnell \u0026amp; Miller 847 and 851 series boiler water feeders and low-water cut-offs to restore automated water level management.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43128507400286,"sku":"313600","price":412.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/313600_image_e78c6af8-6d11-4fb6-b89d-d1cc64eab02e.png?v=1786066293","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-313600-37a-130-replacement-float-for-847-and-851","provider":"National Boiler Supply","version":"1.0","type":"link"}