{"product_id":"armstrong-975000-954-seal-mech-2-625-mechanical-seal-kit","title":"Armstrong 975000-954 - Seal-Mech Mechanical Seal Kit, 2.625\"","description":"\u003cp\u003eMaintain peak efficiency in your hydronic pumping system with the \u003cb\u003eArmstrong 975000-954\u003c\/b\u003e Seal-Mech 2.625, designed specifically to provide a robust, pressure-tight seal. This high-performance component, often referred to as the \u003cb\u003e975000-954\u003c\/b\u003e JC 8B2 DF-101, is engineered to handle the rigorous demands of circulating hot and chilled water, preventing fluid bypass and ensuring long-term operational integrity.\u003c\/p\u003e\u003cp\u003eThe Seal-Mech assembly works by utilizing precisely lapped, ultra-hard seal faces that create a barrier against shaft leakage. As the pump shaft rotates, the internal spring-loaded mechanism maintains constant, uniform pressure between the stationary and rotating components, effectively compensating for mechanical wear while minimizing friction and heat buildup during active system cycles.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Engineering:\u003c\/b\u003e Designed to meet exact Armstrong factory tolerances for seamless fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Materials:\u003c\/b\u003e Constructed from premium compounds resistant to thermal expansion and chemical degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperational Longevity:\u003c\/b\u003e Reduces frequent maintenance cycles by providing a reliable, long-lasting hydraulic seal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFluid Compatibility:\u003c\/b\u003e Optimized for performance in standard HVAC closed-loop heating and cooling applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Recommended for use in Armstrong commercial pumps requiring a 2.625-inch shaft seal replacement. Verify your specific pump model compatibility before installation to ensure proper hydraulic alignment and leak-free performance.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43134683578462,"sku":"975000-954","price":3684.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/975000_954_image_52088cf2-adac-41ca-a3a2-70a18483d5ea.jpg?v=1786110684","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-975000-954-seal-mech-2-625-mechanical-seal-kit","provider":"National Boiler Supply","version":"1.0","type":"link"}