{"product_id":"gol-expansion-solar-heating-tanks-16-132-gallon-120-psi","title":"Gol Expansion Solar Heating Tanks (16-132 Gallon, 120 PSI)","description":"\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-(--header-height)\" dir=\"auto\" data-turn-id=\"5ea43447-155c-4298-bac9-deae0dc39eb7\" data-testid=\"conversation-turn-17\" data-scroll-anchor=\"false\" data-turn=\"user\"\u003e\u003c\/section\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:226d3276-1542-4ba7-bab5-edab00498336-8\" data-testid=\"conversation-turn-18\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"8c5757fb-bcdb-477f-bac9-fa669867b5f4\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003ch2 data-start=\"0\" data-end=\"124\"\u003e\u003cstrong data-start=\"0\" data-end=\"124\"\u003eExpansion Solar Heating Tanks – High-Temperature Hydronic \u0026amp; Solar System Pressure Control Tanks (16–132 Gallon, 120 PSI)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"126\" data-end=\"445\"\u003eThe \u003cstrong data-start=\"130\" data-end=\"163\"\u003eExpansion Solar Heating Tanks\u003c\/strong\u003e are specifically designed for high-temperature solar and hydronic systems, providing reliable pressure control and thermal expansion management. Built to handle demanding conditions, these tanks are ideal for solar thermal applications using glycol and elevated fluid temperatures.\u003c\/p\u003e\n\u003cp data-start=\"447\" data-end=\"799\"\u003eConstructed from durable steel with a high-quality internal diaphragm, these tanks effectively separate air and water to reduce corrosion and maintain long-term system efficiency. Rated for \u003cstrong data-start=\"637\" data-end=\"648\"\u003e120 PSI\u003c\/strong\u003e and designed to withstand temperatures up to \u003cstrong data-start=\"694\" data-end=\"703\"\u003e250°F\u003c\/strong\u003e, they are well-suited for solar heating systems where standard expansion tanks may not perform.\u003c\/p\u003e\n\u003cp data-start=\"801\" data-end=\"1041\"\u003eAvailable in sizes ranging from \u003cstrong data-start=\"833\" data-end=\"862\"\u003e16 gallons to 132 gallons\u003c\/strong\u003e, these tanks offer flexibility for residential and commercial solar installations. With \u003cstrong data-start=\"951\" data-end=\"984\"\u003e1″ to 1-1\/2″ connection sizes\u003c\/strong\u003e, they integrate easily into a variety of system designs.\u003c\/p\u003e\n\u003chr data-start=\"1043\" data-end=\"1046\"\u003e\n\u003cp data-section-id=\"11ggp3i\" data-start=\"1048\" data-end=\"1080\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1052\" data-end=\"1080\"\u003eKey Features \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-start=\"1082\" data-end=\"1608\"\u003e\n\u003cli data-section-id=\"nf3knx\" data-start=\"1082\" data-end=\"1146\"\u003e\n\u003cp\u003eDesigned for \u003cstrong data-start=\"1097\" data-end=\"1144\"\u003esolar and high-temperature hydronic systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"14ivxyd\" data-start=\"1147\" data-end=\"1204\"\u003e\n\u003cp\u003eSuitable for \u003cstrong data-start=\"1162\" data-end=\"1186\"\u003eglycol-based systems\u003c\/strong\u003e up to \u003cstrong data-start=\"1193\" data-end=\"1202\"\u003e250°F\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"dpt96h\" data-start=\"1205\" data-end=\"1264\"\u003e\n\u003cp\u003eDurable steel construction for long-lasting performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"s3ly8u\" data-start=\"1265\" data-end=\"1319\"\u003e\n\u003cp\u003eInternal diaphragm for efficient expansion control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"iwpe8w\" data-start=\"1320\" data-end=\"1370\"\u003e\n\u003cp\u003eRated for \u003cstrong data-start=\"1332\" data-end=\"1343\"\u003e120 PSI\u003c\/strong\u003e maximum working pressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"foetq9\" data-start=\"1371\" data-end=\"1412\"\u003e\n\u003cp\u003eCapacity range: \u003cstrong data-start=\"1389\" data-end=\"1410\"\u003e16 to 132 gallons\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1sg9kfc\" data-start=\"1413\" data-end=\"1451\"\u003e\n\u003cp\u003eConnection sizes: \u003cstrong data-start=\"1433\" data-end=\"1449\"\u003e1″ to 1-1\/2″\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"54pune\" data-start=\"1452\" data-end=\"1500\"\u003e\n\u003cp\u003eHelps prevent overpressure and system damage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1urnuff\" data-start=\"1501\" data-end=\"1548\"\u003e\n\u003cp\u003eImproves efficiency and extends system life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"6tvbuh\" data-start=\"1549\" data-end=\"1608\"\u003e\n\u003cp\u003eIdeal for residential and commercial solar applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1610\" data-end=\"1613\"\u003e\n\u003cp data-section-id=\"10rmw79\" data-start=\"1615\" data-end=\"1631\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1619\" data-end=\"1631\"\u003eOverview\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1633\" data-end=\"2003\"\u003eThe \u003cstrong data-start=\"1637\" data-end=\"1670\"\u003eExpansion Solar Heating Tanks\u003c\/strong\u003e provide a dependable solution for managing thermal expansion in solar heating and high-temperature hydronic systems. With higher pressure and temperature ratings, along with rugged construction and flexible sizing, these tanks are essential for maintaining system safety, efficiency, and long-term reliability in solar applications.\u003c\/p\u003e\n\u003chr data-start=\"2005\" data-end=\"2008\"\u003e\n\u003cp data-section-id=\"12c4my1\" data-start=\"2010\" data-end=\"2037\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2014\" data-end=\"2037\"\u003eTechnical Documents\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2039\" data-end=\"2068\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2380\/1317\/files\/Varem-Expansion-Tanks-for-Heating-and-Solar-Systems_1.pdf?v=1777930631\" title=\"Solar Expansion Tank Brochure\"\u003eSolar Expansion Tank Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"plumbEstore","offers":[{"title":"16 Gal \/ 1\" NPT","offer_id":45197063553077,"sku":"1581161","price":348.36,"currency_code":"USD","in_stock":true},{"title":"21 Gal \/ 1\" NPT","offer_id":45197063585845,"sku":"1581162","price":382.46,"currency_code":"USD","in_stock":true},{"title":"26.5 Gal \/ 1\" NPT","offer_id":45197063618613,"sku":"1581163","price":546.26,"currency_code":"USD","in_stock":true},{"title":"53 Gal \/ 1\"1\/2 NPT","offer_id":45197063651381,"sku":"1581164","price":920.61,"currency_code":"USD","in_stock":true},{"title":"79 Gal \/ 1\"1\/2 NPT","offer_id":45197063684149,"sku":"1581165","price":1356.21,"currency_code":"USD","in_stock":true},{"title":"132 Gal \/ 1\"1\/2 NPT","offer_id":45197063716917,"sku":"1581166","price":2034.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2380\/1317\/files\/ChatGPT_Image_May_4_2026_03_43_02_PM_bf329929-659a-4e31-b70f-c317e7bf5943.png?v=1777931041","url":"https:\/\/plumbestore.com\/products\/gol-expansion-solar-heating-tanks-16-132-gallon-120-psi","provider":"plumbEstore","version":"1.0","type":"link"}