{"product_id":"wessels-2220805-nla-800l-expansion-tank-replacement-bladder","title":"Wessels 2220805 - NLA-800L Replacement Expansion Tank Bladder","description":"\u003cp\u003eMaintain peak efficiency in your closed-loop heating or chilled water HVAC system with the \u003cstrong\u003e2220805\u003c\/strong\u003e replacement bladder designed specifically for the \u003cstrong\u003eWessels NLA-800L\u003c\/strong\u003e expansion tank. This high-quality component is essential for managing thermal expansion and preventing dangerous pressure spikes that can compromise sensitive system components and piping.\u003c\/p\u003e\u003cp\u003eThe bladder acts as a flexible barrier within the tank, separating system fluid from the air cushion. As temperatures rise and fluid expands, the bladder compresses the air charge, absorbing the volume change and keeping internal system pressures within safe operational limits, which prevents premature relief valve discharge and component fatigue.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Regulation:\u003c\/strong\u003e Precisely manages thermal expansion to prevent system over-pressurization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Longevity:\u003c\/strong\u003e High-grade material construction ensures resistance to chemical degradation and daily cycling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Integrity:\u003c\/strong\u003e Maintains proper air-to-water separation for reliable, consistent heat transfer performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Recommended for commercial and industrial closed-loop hydronic heating systems, chilled water loops, and large-scale facility cooling applications requiring consistent pressure stabilization.\u003c\/p\u003e","brand":"Wessels","offers":[{"title":"Default Title","offer_id":43136632586334,"sku":"NLA-800L","price":6852.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/bell--gossett-replacement-expansion-tank-bladder__35583.1718918804.jpg?v=1786293579","url":"https:\/\/nationalboilersupply.com\/products\/wessels-2220805-nla-800l-expansion-tank-replacement-bladder","provider":"National Boiler Supply","version":"1.0","type":"link"}