{"product_id":"lochinvar-val3403-natural-gas-valve-for-cb-cw-cs-boilers","title":"Lochinvar VAL3403 - Natural Gas Valve for CB\/CW\/CS Boilers","description":"\u003cp\u003eMaintain consistent thermal output in your heating system with the Lochinvar \u003cstrong\u003eVAL3403\u003c\/strong\u003e Natural Gas Valve. This precision component is engineered specifically for integration with Copper-Fin \u003cstrong\u003eCB, CW, and CS\u003c\/strong\u003e series boilers and pool heaters, ensuring strict fuel regulation and operational safety during every ignition cycle.\u003c\/p\u003e\u003cp\u003eThis gas valve utilizes an internal solenoid assembly to modulate the supply of natural gas to the burner manifold. By responding to signals from the integrated boiler control board, the valve facilitates precise pressure management, preventing combustion instability and ensuring the heating unit maintains its factory-rated thermal capacity.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Modulation:\u003c\/strong\u003e Engineered to provide consistent gas pressure for reliable burner performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Integration:\u003c\/strong\u003e Designed for direct replacement in legacy and modern Lochinvar Copper-Fin units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion Integrity:\u003c\/strong\u003e Supports clean-burning cycles by providing immediate shut-off and controlled flow protocols.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Authorized for installation in Lochinvar Copper-Fin CB, CW, and CS models ranging from 985,000 to 2,065,000 BTU, specifically for water heaters, hydronic boilers, and industrial pool heating systems.\u003c\/p\u003e","brand":"LOCHINVAR","offers":[{"title":"Default Title","offer_id":43137905557598,"sku":"VAL3403","price":293.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Metropac_20Industries_20Inc_00355976.jpg?v=1786203422","url":"https:\/\/nationalboilersupply.com\/products\/lochinvar-val3403-natural-gas-valve-for-cb-cw-cs-boilers","provider":"National Boiler Supply","version":"1.0","type":"link"}