
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 Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | VAL3403 |
| Manufacturer | Lochinvar |
| Fuel Type | Natural Gas |
| Equipment Compatibility | Copper-Fin CB, CW, CS Series (985-2065) |
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms →📋 Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.