{"product_id":"hoffman-402457-series-2100-pressure-reducing-main-valve-3-4-npt","title":"Hoffman 402457 Series 2100 Pressure Reducing Main Valve, 3\/4\" NPT","description":"\u003cp\u003eEfficiently manage your hydronic heating system pressure with the \u003cstrong\u003eHoffman 402457\u003c\/strong\u003e, a high-quality Series 2100 pressure reducing main valve designed for long-term reliability. Engineered for 3\/4\" NPT connections, this component ensures your system maintains consistent operating pressure, preventing potential damage from over-pressurization while optimizing thermal efficiency throughout your plumbing loop.\u003c\/p\u003e\u003cp\u003eThis valve functions by automatically regulating the water supply to the boiler, compensating for system fluctuations to maintain a stable, pre-set pressure level. The precision-machined internal diaphragm and seat assembly work in tandem to throttle flow based on downstream demand, providing consistent system replenishment without the need for manual oversight.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Regulation:\u003c\/strong\u003e Designed to maintain accurate downstream pressure settings for commercial and residential hydronic loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Dynamics:\u003c\/strong\u003e Optimized internal geometry to handle consistent water throughput for reliable system performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Efficiency:\u003c\/strong\u003e Standard 3\/4\" NPT connections allow for seamless integration into existing pipe configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for use in closed-loop hydronic heating systems, boiler feed applications, and building maintenance repair where precise pressure control is required to prevent equipment strain.\u003c\/p\u003e","brand":"Hoffman","offers":[{"title":"Default Title","offer_id":43128942919774,"sku":"402457","price":1324.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/402457_image_1f9c2d74-b6b0-4cac-8e2f-c9a1d85b5faa.png?v=1786072259","url":"https:\/\/nationalboilersupply.com\/products\/hoffman-402457-series-2100-pressure-reducing-main-valve-3-4-npt","provider":"National Boiler Supply","version":"1.0","type":"link"}