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Lochinvar VAL3403 - Natural Gas Valve for CB/CW/CS Boilers

Lochinvar VAL3403 - Natural Gas Valve for CB/CW/CS Boilers

Brand: LOCHINVAR SKU: VAL3403
Regular price $293.64 USD
Regular price Sale price $293.64 USD
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OEM manufacturer warranty Genuine factory-sourced

Ships factory-new in original packaging.

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Maintain consistent thermal output in your heating system with the Lochinvar VAL3403 Natural Gas Valve. This precision component is engineered specifically for integration with Copper-Fin CB, CW, and CS series boilers and pool heaters, ensuring strict fuel regulation and operational safety during every ignition cycle.

This 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.

Key System Performance Baselines:

  • Precision Modulation: Engineered to provide consistent gas pressure for reliable burner performance.
  • Seamless Integration: Designed for direct replacement in legacy and modern Lochinvar Copper-Fin units.
  • Combustion Integrity: Supports clean-burning cycles by providing immediate shut-off and controlled flow protocols.

⚠️ Application Profile: 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.

Performance ParameterEngineering Baseline Value
Manufacturer Part Number (MPN)VAL3403
ManufacturerLochinvar
Fuel TypeNatural Gas
Equipment CompatibilityCopper-Fin CB, CW, CS Series (985-2065)
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