{"title":"Taco Expansion Tanks","description":"","products":[{"product_id":"pax30-150-potable-water-expansion-tank","title":"PAX30-150 - Potable Water Expansion Tank - 8 Gallon","description":"\u003cp\u003e\u003cstrong\u003eTaco PAX30-150 - Potable Water Expansion Tank - 8 Gallon\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Taco PAX Series expansion tanks are engineered for commercial and residential potable water systems. Designed per ASME Section VIII, Div. 1, these vertical bladder-style tanks feature a field-replaceable heavy-duty butyl bladder that separates air from water to manage thermal expansion effectively. The precharged air chamber reduces tank size requirements by up to 80% compared to standard steel tanks, while eliminating internal corrosion risks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eASME-certified steel shell with epoxy coating for long-term durability\u003c\/li\u003e\n\u003cli\u003eHeavy-duty butyl bladder is removable for inspection and replacement\u003c\/li\u003e\n\u003cli\u003e304 stainless steel system connection resists corrosion\u003c\/li\u003e\n\u003cli\u003eFactory precharged to 40 psi for immediate job-site readiness (adjustable)\u003c\/li\u003e\n\u003cli\u003e150 PSI standard working pressure; higher ratings available upon request\u003c\/li\u003e\n\u003cli\u003eVertical installation only for optimal performance\u003c\/li\u003e\n\u003cli\u003eNSF\/ANSI 61-G certified models available (denoted with “P” suffix)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eResidential and commercial potable hot water systems\u003c\/li\u003e\n\u003cli\u003eBackflow preventer or PRV protection zones\u003c\/li\u003e\n\u003cli\u003eSystems requiring code-compliant thermal expansion control\u003c\/li\u003e\n\u003cli\u003eUse with Taco pressure reducing valves and hot water recirculation setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003eMTAC003270\u003c\/span\u003e\u003c\/p\u003e","brand":"Taco","offers":[{"title":"Default Title","offer_id":46617346146549,"sku":"PAX30-150","price":2099.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/21868145-7f38-4a7a-a2ae-aefa1cab94c5.jpg?v=1755625623"},{"product_id":"pax84-150-potable-water-expansion-tank","title":"PAX84-150 - Potable Water Expansion Tank - 22 Gallon","description":"\u003cp\u003e\u003cstrong\u003eTaco PAX84-150 - Potable Water Expansion Tank - 22 Gallon\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Taco PAX Series expansion tanks are engineered for commercial and residential potable water systems. Designed per ASME Section VIII, Div. 1, these vertical bladder-style tanks feature a field-replaceable heavy-duty butyl bladder that separates air from water to manage thermal expansion effectively. The precharged air chamber reduces tank size requirements by up to 80% compared to standard steel tanks, while eliminating internal corrosion risks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eASME-certified steel shell with epoxy coating for long-term durability\u003c\/li\u003e\n\u003cli\u003eHeavy-duty butyl bladder is removable for inspection and replacement\u003c\/li\u003e\n\u003cli\u003e304 stainless steel system connection resists corrosion\u003c\/li\u003e\n\u003cli\u003eFactory precharged to 40 psi for immediate job-site readiness (adjustable)\u003c\/li\u003e\n\u003cli\u003e150 PSI standard working pressure; higher ratings available upon request\u003c\/li\u003e\n\u003cli\u003eVertical installation only for optimal performance\u003c\/li\u003e\n\u003cli\u003eNSF\/ANSI 61-G certified models available (denoted with “P” suffix)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eResidential and commercial potable hot water systems\u003c\/li\u003e\n\u003cli\u003eBackflow preventer or PRV protection zones\u003c\/li\u003e\n\u003cli\u003eSystems requiring code-compliant thermal expansion control\u003c\/li\u003e\n\u003cli\u003eUse with Taco pressure reducing valves and hot water recirculation setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003eMTAC003275\u003c\/span\u003e\u003c\/p\u003e","brand":"Taco","offers":[{"title":"Default Title","offer_id":46617411027189,"sku":"PAX84-150","price":3199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/1fbe0604-c88d-4f33-b6a4-ba8023182922.png?v=1755625622"},{"product_id":"ca140-125p-bladder-expansion-tank","title":"CA140-125P - Full-Acceptance Expansion Tank - 37 Gallon","description":"\u003cp\u003e\u003cstrong\u003eTaco CA140-125P - Full-Acceptance Expansion Tank - 37 Gallon\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Taco CA140-125P is a 37-gallon, ASME-certified bladder expansion tank engineered for hydronic heating, cooling, and pressure booster systems. Built with a carbon steel shell and a heavy-duty butyl bladder, it ensures permanent separation between air and water to manage thermal expansion reliably and efficiently.\u003c\/p\u003e\n\u003cp\u003eUnlike basic compression tanks, the CA140-125P uses a replaceable bladder to contain the expanding water, while a pre-charged air cushion on the shell side absorbs pressure changes. This design minimizes air absorption into the water and reduces the need for frequent maintenance or recharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e37-gallon bladder-style expansion tank for closed water systems\u003c\/li\u003e\n\u003cli\u003eASME Code Section VIII, Div. 1 construction\u003c\/li\u003e\n\u003cli\u003e125 PSI @ 240°F standard design pressure and temperature\u003c\/li\u003e\n\u003cli\u003eRemovable butyl bladder for permanent air\/water separation and easy inspection\u003c\/li\u003e\n\u003cli\u003eCarbon steel shell with red oxide primer exterior finish\u003c\/li\u003e\n\u003cli\u003eFactory precharged to 40 PSI (field adjustable)\u003c\/li\u003e\n\u003cli\u003eNSF\/ANSI 61-G certified for potable water use\u003c\/li\u003e\n\u003cli\u003eU-1A Data Report and National Board registered\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClosed hydronic heating and chilled water systems\u003c\/li\u003e\n\u003cli\u003ePressure booster and potable water systems\u003c\/li\u003e\n\u003cli\u003eCommercial and institutional HVAC installations\u003c\/li\u003e\n\u003cli\u003eSystems requiring ASME and NSF-compliant thermal expansion control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003eMTAC003285\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Taco","offers":[{"title":"Default Title","offer_id":46617744146677,"sku":"CA140-125P","price":4299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/0740ab2a-dd2a-40d0-9fca-9a789d1c8146.jpg?v=1755625621"},{"product_id":"pax170-150-potable-water-expansion-tank","title":"PAX170-150 - Potable Water Expansion Tank - 45 Gallon","description":"\u003cp\u003e\u003cstrong\u003eTaco PAX170-150 - Potable Water Expansion Tank - 45 Gallon\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Taco PAX Series expansion tanks are engineered for commercial and residential potable water systems. Designed per ASME Section VIII, Div. 1, these vertical bladder-style tanks feature a field-replaceable heavy-duty butyl bladder that separates air from water to manage thermal expansion effectively. The precharged air chamber reduces tank size requirements by up to 80% compared to standard steel tanks, while eliminating internal corrosion risks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eASME-certified steel shell with epoxy coating for long-term durability\u003c\/li\u003e\n\u003cli\u003eHeavy-duty butyl bladder is removable for inspection and replacement\u003c\/li\u003e\n\u003cli\u003e304 stainless steel system connection resists corrosion\u003c\/li\u003e\n\u003cli\u003eFactory precharged to 40 psi for immediate job-site readiness (adjustable)\u003c\/li\u003e\n\u003cli\u003e150 PSI standard working pressure; higher ratings available upon request\u003c\/li\u003e\n\u003cli\u003eVertical installation only for optimal performance\u003c\/li\u003e\n\u003cli\u003eNSF\/ANSI 61-G certified models available (denoted with “P” suffix)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eResidential and commercial potable hot water systems\u003c\/li\u003e\n\u003cli\u003eBackflow preventer or PRV protection zones\u003c\/li\u003e\n\u003cli\u003eSystems requiring code-compliant thermal expansion control\u003c\/li\u003e\n\u003cli\u003eUse with Taco pressure reducing valves and hot water recirculation setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003eMTAC003280\u003c\/span\u003e\u003c\/p\u003e","brand":"Taco","offers":[{"title":"Default Title","offer_id":46621941924085,"sku":"PAX170-150","price":3999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/c9a929bc-ee20-40e6-a153-82055a493eaf.png?v=1755625618"}],"url":"https:\/\/www.supplystop.com\/collections\/taco-expansion-tanks\/size-1-2.oembed","provider":"SupplyStop.com","version":"1.0","type":"link"}