{"product_id":"armstrong-572018-003-diaphragm-expansion-tank-60","title":"Armstrong 572018-003 Diaphragm Expansion Tank 60","description":"\u003cp\u003eHydronic systems require precise pressure management to handle the fluctuations caused by heating and cooling cycles, and the \u003cstrong\u003eArmstrong 572018-003\u003c\/strong\u003e diaphragm expansion tank is engineered to provide this essential stability. By accommodating the increased fluid volume that occurs during temperature changes, this \u003cstrong\u003e572018-003\u003c\/strong\u003e model effectively maintains your system's normal charge pressure, protecting your boiler and piping components from unnecessary stress.\u003c\/p\u003e\u003cp\u003eThis tank utilizes a high-quality internal diaphragm to create a positive barrier between the system water and the air cushion. As the water expands, it compresses the air within the tank, allowing the system to absorb volume changes without forcing the pressure relief valve to discharge. This mechanism eliminates nuisance valve activation and minimizes the need for frequent, unnecessary water make-up, thereby reducing sediment buildup and oxygenation within the loop.\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 charge pressure throughout thermal expansion cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Efficiency:\u003c\/strong\u003e Prevents fluid loss to keep chemical treatments and heat transfer fluid concentrations stable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Lifespan:\u003c\/strong\u003e Reduces the cycle frequency of mechanical relief components and air removal devices.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for residential and light commercial closed-loop hydronic heating systems, radiant floor heating zones, and boiler installations requiring consistent pressure regulation.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43133369942110,"sku":"572018-003","price":561.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/572018_003_image_985a22ff-10a3-4eae-8b2f-2dc977334015.png?v=1786104882","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-572018-003-diaphragm-expansion-tank-60","provider":"National Boiler Supply","version":"1.0","type":"link"}