{"product_id":"bell-gossett-1bn329-hft-90-hydronic-expansion-tank","title":"Bell \u0026 Gossett 1BN329 HFT-90 Hydronic Expansion Tank","description":"\u003cp\u003eEfficiently manage thermal expansion in your hydronic heating or potable water systems with the \u003cstrong\u003e1BN329\u003c\/strong\u003e Bell \u0026amp; Gossett \u003cstrong\u003eHFT-90\u003c\/strong\u003e expansion tank. Designed for long-term reliability, this high-performance tank helps prevent pressure fluctuations that can cause unnecessary stress on system components, ensuring your boiler or water heater operates at peak efficiency.\u003c\/p\u003e\u003cp\u003eThis diaphragm-style expansion tank features a heavy-duty steel construction with an internal flexible membrane that separates the system water from the air cushion. As water heats and expands, the diaphragm flexes against the pressurized air pocket, effectively absorbing the volumetric change and maintaining consistent system pressure to protect against relief valve discharge.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Heavy-gauge steel shell designed to withstand rigorous hydronic operating pressures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Management:\u003c\/strong\u003e Precision-engineered diaphragm prevents system waterlogging and unnecessary air-related damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Integration:\u003c\/strong\u003e Compact, space-saving design ensures straightforward installation in residential and light commercial mechanical rooms.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for residential hydronic heating systems, radiant floor heating loops, and domestic hot water potable water applications where thermal expansion control is required to protect plumbing and heating infrastructure.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43127860822110,"sku":"1BN329","price":332.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/1BN329_image_0604d4c9-2d5a-4acf-9178-c34079a4e236.jpg?v=1786058381","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-1bn329-hft-90-hydronic-expansion-tank","provider":"National Boiler Supply","version":"1.0","type":"link"}