{"product_id":"bell-gossett-101236lf-3-4-sweat-check-trol-isolation-flange","title":"Bell \u0026 Gossett 101236LF 3\/4\" Sweat Check-Trol Isolation Flange","description":"\u003cp\u003eThe 3\/4\" sweat‑mounted isolation flange delivers quick, leak‑free shutoff for HVAC and hydronic piping, making routine maintenance straightforward. The \u003cstrong\u003e101236LF\u003c\/strong\u003e model from Bell \u0026amp; Gossett incorporates a Check‑Trol valve for precise flow control.\u003c\/p\u003e\u003cp\u003eDesigned with a durable metal body and a sweat‑type, socket‑weld connection, the flange isolates a section of pipe while the integrated Check‑Trol valve prevents backflow. Installation is performed by simple welding, after which the valve can be tested for proper operation without disassembling the system.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeak‑Free Seal:\u003c\/strong\u003e Sweat‑mounted design ensures a hermetic joint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackflow Prevention:\u003c\/strong\u003e Check‑Trol valve stops reverse flow automatically.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRapid Serviceability:\u003c\/strong\u003e Isolation capability speeds up repairs and inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for commercial boiler loops, chilled‑water systems, and HVAC condensate lines where reliable isolation and backflow protection are required.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43118263566430,"sku":"101236LF","price":104.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/101236LF_image_ff5411d2-9297-4348-937b-31c431332de0.png?v=1785969277","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-101236lf-3-4-sweat-check-trol-isolation-flange","provider":"National Boiler Supply","version":"1.0","type":"link"}