{"product_id":"armstrong-fluid-technology-8426401-006-gasket","title":"Armstrong Fluid Technology 8426401-006 Gasket","description":"\u003cp\u003eThe \u003cstrong\u003eArmstrong Fluid Technology 8426401-006 Gasket\u003c\/strong\u003e is a critical \u003cstrong\u003eOEM pump replacement part\u003c\/strong\u003e engineered for high-performance sealing in commercial hydronic systems. This 11.5-inch \u003cstrong\u003enitrile gasket\u003c\/strong\u003e (Buna-N) is designed specifically for \u003cstrong\u003eArmstrong S \u0026amp; H Series pumps\u003c\/strong\u003e and \u003cstrong\u003eDesign Envelope\u003c\/strong\u003e fluid-handling units. Nitrile construction ensures superior resistance to petroleum-based oils, water, and common glycol-based heat transfer fluids, maintaining seal integrity under varying thermal loads. As a direct replacement for \u003cstrong\u003eArmstrong part 426401-006\u003c\/strong\u003e, it facilitates a precise fit for volute and flange assemblies, preventing cavitational leaks and maintaining system pressure. For contractors performing scheduled maintenance or emergency repairs, utilizing genuine \u003cstrong\u003eArmstrong fluid technology spares\u003c\/strong\u003e ensures dimensional accuracy and material compatibility that generic alternatives cannot match. This component is essential for technicians looking to restore factory-spec sealing performance in demanding HVACR environments.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecise OEM Fit:\u003c\/strong\u003e Ensures 100% compatibility with 11.5-inch Armstrong pump housings, eliminating the risk of bypass leaks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Grade Nitrile Material:\u003c\/strong\u003e Offers excellent tensile strength and compression set resistance for reliable \u003cstrong\u003eindustrial fluid sealing\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChemical Resistance:\u003c\/strong\u003e Optimized for systems utilizing oils and standard HVAC chemicals without degrading the elastomer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEfficient Installation:\u003c\/strong\u003e Die-cut to exact specifications for \u003cstrong\u003eArmstrong 8426401-006\u003c\/strong\u003e, reducing downtime during pump overhauls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat equipment uses the Armstrong 8426401-006 gasket?\u003c\/strong\u003e\u003cbr\u003e\nThis gasket is primarily used in large-format Armstrong centrifugal pumps and fluid-handling systems requiring an 11.5-inch OD seal, specifically matching the 426401-006 series specifications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs Nitrile\/Buna-N suitable for high-temperature steam applications?\u003c\/strong\u003e\u003cbr\u003e\nNitrile is ideal for water, oils, and glycols up to approximately 212°F (100°C). For high-pressure steam, technicians should verify if EPDM or Viton is required for the specific application temperature.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use this gasket as a replacement for Armstrong 426401-006?\u003c\/strong\u003e\u003cbr\u003e\nYes, the 8426401-006 is the official 11.5-inch replacement part number and maintains the same technical tolerances as the legacy 426401-006 SKU.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong style=\"color: red;\"\u003eThis item is not eligible for free shipping.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Armstrong Fluid Technology","offers":[{"title":"Default Title","offer_id":47076467638450,"sku":"8426401-006","price":136.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Pic_ceb76723-e42d-4e82-b7cb-a086b050f115.png?v=1771354835","url":"https:\/\/www.gsistore.com\/en-ca\/products\/armstrong-fluid-technology-8426401-006-gasket","provider":"GSIstore","version":"1.0","type":"link"}