{"product_id":"bell-gossett-116307-series-d-200-asme-expansion-tank","title":"Bell \u0026 Gossett 116307 Series D-200 ASME Expansion Tank","description":"\u003cp\u003eEfficiently manage thermal expansion and system pressurization with the Bell \u0026amp; Gossett \u003cstrong\u003e116307\u003c\/strong\u003e Series D-200 ASME expansion tank. This pre-charged, diaphragm-style pressure vessel is engineered to stabilize water volume fluctuations in both heating and cooling hydronic loops, ensuring the system remains within safe operating limits despite varying temperatures.\u003c\/p\u003e\u003cp\u003eThe unit functions by utilizing a heavy-duty internal diaphragm that separates the system water from the air cushion, effectively absorbing excess expansion forces. By preventing erratic pressure spikes and reducing unnecessary relief valve activation, this durable vessel helps extend the life of your entire hydronic installation.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eASME Certified:\u003c\/strong\u003e Built to meet strict pressure vessel safety standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiaphragm Design:\u003c\/strong\u003e Prevents water-logging by separating system water from the air charge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Stability:\u003c\/strong\u003e Maintains consistent operating pressure under variable thermal loads.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for high-efficiency commercial and large-scale residential hydronic heating loops, chilled water cooling systems, and specialized industrial fluid management circuits requiring ASME-rated expansion control.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43124023656542,"sku":"116307","price":5554.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/116307_image_899f3625-273d-4764-9d0f-ca604638d189.png?v=1786028975","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-116307-series-d-200-asme-expansion-tank","provider":"National Boiler Supply","version":"1.0","type":"link"}