{"product_id":"armstrong-572018-002-diaphragm-expansion-tank-30","title":"Armstrong 572018-002 Diaphragm Expansion Tank 30","description":"\u003cp\u003eEfficiently manage hydronic system fluid volume with the \u003cstrong\u003eArmstrong 572018-002\u003c\/strong\u003e Diaphragm Expansion Tank, a robust solution for maintaining consistent charge pressure. This high-quality \u003cstrong\u003e572018-002\u003c\/strong\u003e unit is engineered to accommodate the natural expansion and contraction of fluids during temperature cycles, ensuring your heating or cooling system operates at peak reliability.\u003c\/p\u003e\u003cp\u003eThe expansion tank utilizes a flexible internal diaphragm to create a physical barrier between the system water and the air cushion. As temperatures rise and the water expands, the diaphragm flexes, providing the necessary space to keep system pressure within safe operational limits. By buffering these pressure spikes, the tank prevents premature activation of relief valves and eliminates the need for frequent, unnecessary water make-up.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Regulation:\u003c\/strong\u003e Maintains consistent system charge pressure through thermal expansion cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeak Prevention:\u003c\/strong\u003e Reduces nuisance trips of pressure relief valves caused by thermal expansion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperational Longevity:\u003c\/strong\u003e Prevents system fatigue by absorbing excess volume, reducing stress on pump seals and joints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Conservation:\u003c\/strong\u003e Minimizes unnecessary water make-up and oxygen infusion into the hydronic loop.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for residential and light commercial hydronic heating systems, radiant floor loops, and closed-loop chilled water systems requiring precise pressure management.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43133369057374,"sku":"572018-002","price":244.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/572018_002_image_462c7c76-ceaf-4ffc-9fcb-ada85b899d99.png?v=1786104847","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-572018-002-diaphragm-expansion-tank-30","provider":"National Boiler Supply","version":"1.0","type":"link"}