{"product_id":"bell-gossett-1bn361lf-pta-450-asme-diaphragm-expansion-tank","title":"Bell \u0026 Gossett 1BN361LF PTA-450 ASME Diaphragm Expansion Tank","description":"\u003cp\u003eEfficiently manage thermal expansion in your domestic water systems with the \u003cstrong\u003e1BN361LF\u003c\/strong\u003e, a high-performance \u003cstrong\u003ePTA-450\u003c\/strong\u003e expansion tank engineered by Bell \u0026amp; Gossett. This vessel is designed to accommodate the volume changes caused by fluctuating water temperatures, preventing harmful pressure spikes that can compromise your plumbing infrastructure.\u003c\/p\u003e\u003cp\u003eThe system utilizes a sophisticated diaphragm design to create a physical barrier between the system water and the tank's internal air cushion. By isolating the water from the carbon steel shell using an FDA-approved polypropylene liner and a heavy-duty butyl diaphragm, the tank effectively mitigates corrosion and ensures water purity while maintaining consistent system pressure.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eASME Construction:\u003c\/strong\u003e Meets rigorous industry standards for pressure vessel safety and reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Resistance:\u003c\/strong\u003e Features an FDA-approved polypropylene liner to protect against internal oxidation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Separation:\u003c\/strong\u003e Utilizes a high-grade butyl diaphragm to isolate system water from the air charge.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for commercial domestic water heating systems, large-scale potable water infrastructure, and booster system installations requiring reliable pressure stabilization.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43127903879262,"sku":"1BN361LF","price":11654.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/1BN361LF_image_042d34df-741d-41fc-8e2b-a081b2dc4a20.png?v=1786058977","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-1bn361lf-pta-450-asme-diaphragm-expansion-tank","provider":"National Boiler Supply","version":"1.0","type":"link"}