{"product_id":"bell-gossett-pta-12-1bn347lf-asme-potable-expansion-tank","title":"Bell \u0026 Gossett PTA-12 1BN347LF ASME Potable Expansion Tank","description":"\u003cp\u003eSafeguard your domestic water system from excessive pressure fluctuations with the \u003cstrong\u003eBell \u0026amp; Gossett PTA-12\u003c\/strong\u003e. This high-quality vessel, identified by part number \u003cstrong\u003e1BN347LF\u003c\/strong\u003e, is engineered to absorb the volumetric expansion of water during heating cycles, preventing thermal shock and potential damage to piping and fixtures.\u003c\/p\u003e\u003cp\u003eThe system utilizes an advanced bladder design, featuring an FDA-approved polypropylene liner and a heavy-duty butyl diaphragm. By isolating stored water from the steel shell, the PTA-12 prevents corrosion and maintains pristine water quality throughout the expansion and contraction process.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eASME Construction:\u003c\/strong\u003e Built to rigorous standards for safety and pressure vessel compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Isolation:\u003c\/strong\u003e Utilizes a high-grade butyl diaphragm to keep domestic water separate from the vessel wall.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Resistance:\u003c\/strong\u003e Incorporates an FDA-approved polypropylene liner for long-term reliability in potable water applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for domestic water heating systems, commercial building plumbing, and residential water supply lines requiring ASME-certified pressure mitigation.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43136949518430,"sku":"PTA-12","price":2051.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/PTA_12_image_f4e8d20b-ca47-4d24-a87d-f0fd5c30f68d.png?v=1786157326","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-pta-12-1bn347lf-asme-potable-expansion-tank","provider":"National Boiler Supply","version":"1.0","type":"link"}