{"product_id":"wessels-fxa-700-expansion-tank-replacement-bladder","title":"Wessels FXA-700 Expansion Tank Replacement Bladder","description":"\u003cp\u003eMaintain optimal pressure control in your closed-loop heating or chilled water HVAC system with this high-quality replacement bladder for the \u003cstrong\u003eFXA-700\u003c\/strong\u003e. When the original internal barrier in your Wessels tank reaches the end of its service life, replacing the bladder with the genuine \u003cstrong\u003e2210700\u003c\/strong\u003e unit is the most efficient way to restore system integrity and prevent dangerous pressure spikes.\u003c\/p\u003e\u003cp\u003eThe bladder serves as a flexible, heavy-duty membrane that separates the system fluid from the air cushion within the tank. By flexing in response to thermal expansion and contraction, it ensures that your system maintains a steady pressure, protecting sensitive components like boilers, chillers, and piping from fatigue and potential failure.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Stability:\u003c\/strong\u003e Effectively manages volumetric expansion caused by temperature fluctuations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Integrity:\u003c\/strong\u003e Constructed from heavy-duty elastomers engineered for long-term fluid compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Protection:\u003c\/strong\u003e Isolates system fluid to minimize oxygen ingress and internal corrosion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Integration:\u003c\/strong\u003e Designed specifically for seamless field replacement within the existing shell.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Essential for commercial and industrial closed-loop heating systems, secondary chilled water loops, and hydronic expansion tank maintenance.\u003c\/p\u003e","brand":"Wessels","offers":[{"title":"Default Title","offer_id":43136530710622,"sku":"FXA-700","price":4867.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/FXA_700_image_a28a4923-9bc5-46ca-b2c3-ba32d90e29bf.jpg?v=1786140861","url":"https:\/\/nationalboilersupply.com\/products\/wessels-fxa-700-expansion-tank-replacement-bladder","provider":"National Boiler Supply","version":"1.0","type":"link"}