{"product_id":"taco-ps400-125-400-gallon-ps-expansion-tank","title":"Taco PS400-125 400 Gallon PS Expansion Tank","description":"\u003cp\u003eEfficient pressure regulation in large-scale hydronic heating and cooling systems is essential for maintaining equipment longevity and preventing relief valve discharge. The \u003cstrong\u003eTaco PS400-125\u003c\/strong\u003e 400-gallon expansion tank provides the necessary volume to accommodate thermal expansion, effectively stabilizing system pressure. Designed for commercial and industrial applications, this model \u003cstrong\u003ePS400-125\u003c\/strong\u003e ensures your system remains pressurized within optimal operating ranges, reducing the load on circulators and internal components.\u003c\/p\u003e\u003cp\u003eThis expansion tank utilizes a rugged internal bladder or diaphragm system to maintain a physical barrier between the system fluid and the air cushion. As temperatures rise and the water volume increases, the fluid enters the tank, compressing the pre-charged air cushion to absorb the pressure spike. This design prevents oxygen permeation, significantly reducing internal pipe corrosion while ensuring consistent system performance throughout seasonal temperature cycles.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume capacity:\u003c\/strong\u003e 400-gallon storage for extensive hydronic loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure management:\u003c\/strong\u003e Mitigates dangerous pressure fluctuations in large circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion resistance:\u003c\/strong\u003e Specialized internal liner protects vessel integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem efficiency:\u003c\/strong\u003e Supports long-term operational stability for pumps and valves.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for large commercial heating loops, chilled water cooling systems, municipal hydronic projects, and industrial process temperature control systems.\u003c\/p\u003e","brand":"Taco","offers":[{"title":"Default Title","offer_id":43136948469854,"sku":"PS400-125","price":8288.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/PS400_125_image_e74e9309-3882-45e4-81d1-42258abe17b0.png?v=1786157188","url":"https:\/\/nationalboilersupply.com\/products\/taco-ps400-125-400-gallon-ps-expansion-tank","provider":"National Boiler Supply","version":"1.0","type":"link"}