{"product_id":"armstrong-572006-305-ast-60-asme-pre-pressurized-expansion-tank","title":"Armstrong 572006-305 AST-60 ASME Pre-Pressurized Expansion Tank","description":"\u003cp\u003eThis high-performance expansion tank is designed to efficiently manage the thermal expansion of fluids within closed-loop hydronic heating and chilled water systems. The \u003cstrong\u003eArmstrong 572006-305\u003c\/strong\u003e, also identified as the \u003cstrong\u003eAST-60\u003c\/strong\u003e model, is engineered to meet rigorous ASME code requirements, ensuring safety and structural integrity under demanding operating conditions.\u003c\/p\u003e\u003cp\u003eBy utilizing a heavy-duty diaphragm, this vessel separates the system fluid from the pre-charged air cushion. As temperatures rise and the fluid volume expands, the diaphragm flexes to accommodate the increase, effectively preventing pressure spikes that could otherwise compromise system components or lead to relief valve discharge.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Expansion Management:\u003c\/strong\u003e Effectively absorbs volumetric changes to maintain stable system pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASME Certified:\u003c\/strong\u003e Constructed to strict industry standards for pressure vessel safety and reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Diaphragm:\u003c\/strong\u003e High-grade elastomer construction ensures long-term separation between air and water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Pressurized Design:\u003c\/strong\u003e Factory-set charge simplifies field installation and reduces maintenance startup time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for commercial boiler systems, chilled water loops, and closed-loop HVAC hydronic installations requiring reliable ASME-rated pressure control.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43133348773982,"sku":"572006-305","price":3421.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/572006_305_image_6403b2c9-66c1-48a0-bb7d-4cb0c1bb7e9c.png?v=1786104554","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-572006-305-ast-60-asme-pre-pressurized-expansion-tank","provider":"National Boiler Supply","version":"1.0","type":"link"}