ASCO 8040H8-240V Solenoid Valve

The ASCO 8040H8 240V is a heavy-duty 2-way normally closed gas solenoid valve engineered specifically for low-pressure fuel gas service. Featuring a 3/8" NPT connection and a lightweight aluminum body, this valve provides a 1.2 Cv flow capacity, making it an essential component for industrial burners and high-output heating systems. Designed for a pressure range of 0-15 PSI, it utilizes NBR (Nitrile) seals to ensure tight shut-off and reliable seat performance across varying ambient temperatures. The 240Vac coil is housed in a NEMA 4X enclosure, providing superior protection against corrosion and moisture in demanding mechanical rooms. This direct-acting solenoid valve is a standard-drop replacement for gas train assemblies requiring precise flow control and quick response times. Contractors rely on the 8040 series for its rugged internal construction and consistent performance in commercial combustion applications.

• NEMA 4X Watertight Enclosure: Provides robust protection against corrosion and wash-down environments, increasing the lifespan of the 240Vac coil.
• High-Flow 1.2 Cv Rating: Optimized for fuel gas applications where maintaining consistent pressure drop is critical for burner efficiency.
• Zero Minimum Pressure: The direct-acting design allows the valve to open and close reliably even at 0 PSI, ensuring performance in low-pressure gas loops.
• NBR Seal Compatibility: Specifically chosen for fuel gas media to provide a positive seal and prevent internal leakage.

Common Technical Questions

What is the maximum operating pressure for the ASCO 8040H8?
This specific model is rated for a maximum operating pressure differential of 15 PSI when used with fuel gas.

Can this valve be mounted in any orientation?
For optimal performance and to prevent debris accumulation, it is recommended to mount the valve with the solenoid vertical and upright, although the ASCO 8040 series generally supports multi-position mounting.

Is the 8040H8 suitable for liquid propane (LP) gas?
Yes, the aluminum body and NBR seals are compatible with both natural gas and propane; however, always verify local codes regarding gas train components.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.