{"product_id":"bell-gossett-116308-series-d-240-asme-expansion-tank","title":"Bell \u0026 Gossett 116308 Series D-240 ASME Expansion Tank","description":"\u003cp\u003eEfficiently manage thermal expansion in your hydronic system with the Bell \u0026amp; Gossett 116308 Series D-240 expansion tank. This reliable pressure vessel ensures your heating or cooling system maintains consistent pressurization, preventing air binding and component strain during varying operating temperatures. Designed for durability, the \u003cstrong\u003e116308\u003c\/strong\u003e model provides a long-lasting solution for commercial and industrial applications requiring ASME-certified performance.\u003c\/p\u003e\u003cp\u003eThe Series D tank utilizes a high-quality internal diaphragm that separates system fluid from the air cushion. As system water temperature rises and expands, the diaphragm flexes to accommodate the increased volume, safely absorbing expansion forces without depleting the air charge. This maintenance-free design stabilizes system pressure, protecting sensitive valves and piping from the stress of thermal cycling.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eASME Certified:\u003c\/strong\u003e Engineered to meet strict pressure vessel safety standards for high-performance hydronic systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-charged Design:\u003c\/strong\u003e Factory-set air charge ensures immediate readiness and simplified installation for mechanical contractors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiaphragm Separation:\u003c\/strong\u003e Effectively prevents waterlogging by keeping system water isolated from the internal air cushion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Stability:\u003c\/strong\u003e Optimizes system efficiency by absorbing expansion forces during extreme temperature fluctuations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for large-scale hydronic heating systems, chilled water loops, commercial boiler installations, and industrial process temperature control circuits requiring ASME-rated expansion protection.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43124024901726,"sku":"116308","price":6448.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/116308_image_ab77246d-4771-47a7-bb6d-8e1fb2f65b43.png?v=1786029054","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-116308-series-d-240-asme-expansion-tank","provider":"National Boiler Supply","version":"1.0","type":"link"}