{"product_id":"bell-gossett-1bn333-hft-90v-44-gallon-hydronic-expansion-tank","title":"Bell \u0026 Gossett 1BN333 HFT-90V 44 Gallon Hydronic Expansion Tank","description":"\u003cp\u003eEfficiently manage thermal expansion in your hydronic heating system with the Bell \u0026amp; Gossett \u003cb\u003e1BN333 HFT-90V\u003c\/b\u003e expansion tank. This high-capacity 44-gallon vessel is engineered to reliably absorb the expansion of heated water, protecting your piping, valves, and boiler from dangerous pressure spikes.\u003c\/p\u003e\u003cp\u003eThe unit features a pre-charged air cushion separated from the system water by a heavy-duty, flexible diaphragm. As the water temperature rises and volume increases, the diaphragm compresses the air cushion, allowing the system to maintain stable pressure levels throughout the heating cycle.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePressure Stability:\u003c\/b\u003e Designed to prevent relief valve discharge by absorbing thermal expansion effectively.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDiaphragm Integrity:\u003c\/b\u003e Heavy-duty construction ensures long-term separation between system fluid and air charge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSystem Compatibility:\u003c\/b\u003e Optimized for closed-loop hydronic heating applications requiring a 44-gallon volume.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for large residential and light commercial hydronic heating systems where consistent pressure regulation is required to prevent component stress and extend the lifespan of the boiler.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43127874682974,"sku":"1BN333","price":935.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/1BN333_image_a0e40834-8ee3-4e63-9b9c-9ad5791ec040.jpg?v=1786058576","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-1bn333-hft-90v-44-gallon-hydronic-expansion-tank","provider":"National Boiler Supply","version":"1.0","type":"link"}