{"product_id":"armstrong-573001-008-a300-l-expansion-tank-replacement-bladder","title":"Armstrong 573001-008 A300-L Expansion Tank Replacement Bladder","description":"\u003cp\u003eMaintain optimal system pressure and prevent unwanted fluid discharge with the high-durability replacement bladder for your Armstrong A300-L series expansion tank. The \u003cstrong\u003e573001-008\u003c\/strong\u003e acts as a direct factory-spec replacement designed to restore the integrity of your hydronic or chilled water system, ensuring the vessel maintains its critical thermal expansion volume efficiently.\u003c\/p\u003e\u003cp\u003eThis heavy-duty diaphragm isolates system fluid from the air cushion, effectively preventing waterlogging while protecting your piping network from corrosive oxygen infiltration. By replacing a compromised internal membrane, you stabilize system pressure, reduce unnecessary pump cycling, and extend the overall lifespan of your expansion vessel.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Integrity:\u003c\/strong\u003e Engineered to withstand standard operating pressures for consistent membrane flexibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluid Separation:\u003c\/strong\u003e Provides an impermeable barrier between system water and the pre-charged air cushion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Resilience:\u003c\/strong\u003e Constructed from heavy-gauge, durable elastomer to resist long-term thermal fatigue.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Specifically engineered for commercial and industrial hydronic heating, chilled water cooling, and process water expansion tank vessels using the A300-L series configuration.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43133400645726,"sku":"573001-008","price":3208.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalboilersupply.com\/products\/armstrong-573001-008-a300-l-expansion-tank-replacement-bladder","provider":"National Boiler Supply","version":"1.0","type":"link"}