{"product_id":"hoffman-402409-series-2100-pressure-reducing-main-valve-1-1-4-npt","title":"Hoffman 402409 Series 2100 Pressure Reducing Main Valve 1-1\/4\" NPT","description":"\u003cp\u003eEnsure consistent and efficient pressure regulation in your hydronic heating system with the \u003cstrong\u003eHoffman 402409\u003c\/strong\u003e Series 2100 pressure reducing main valve. This 1-1\/4\" NPT component is engineered to provide precise control over water feed pressure, safeguarding your boiler and piping infrastructure from damaging spikes while ensuring peak performance.\u003c\/p\u003e\u003cp\u003eThe valve operates using a spring-loaded diaphragm mechanism that automatically compensates for fluctuations in supply pressure. As downstream pressure drops, the valve opens to restore the set point, maintaining a stable operating environment for the entire system loop.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Pressure Regulation:\u003c\/strong\u003e Maintains consistent system filling to prevent cavitation and air binding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Construction:\u003c\/strong\u003e Designed for long-term durability in high-demand hydronic loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Connection:\u003c\/strong\u003e Features standard 1-1\/4\" NPT threading for seamless integration into existing piping.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for commercial and industrial boiler feed applications, closed-loop hydronic heating systems, and make-up water lines where precise pressure management is critical for operational longevity.\u003c\/p\u003e","brand":"Hoffman","offers":[{"title":"Default Title","offer_id":43128885968990,"sku":"402409","price":2526.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/402409_image_e106d7d5-325c-45cf-bcf9-7187c127d3b9.png?v=1786071352","url":"https:\/\/nationalboilersupply.com\/products\/hoffman-402409-series-2100-pressure-reducing-main-valve-1-1-4-npt","provider":"National Boiler Supply","version":"1.0","type":"link"}