ASCO 8040H8 Solenoid Valve

The ASCO 8040H8 is a heavy-duty 2-way normally closed solenoid valve designed specifically for fuel gas service in industrial and commercial burner applications. This 3/8" NPT valve features a rugged aluminum body and durable NBR seals, ensuring reliable shut-off for low-pressure systems with a 0-15 PSI operating range. Operating on 120V/60Hz power, it delivers a flow coefficient of 1.2 Cv, providing precise control for gas pilots and main burners. The NEMA 4X enclosure offers superior protection against corrosion and environmental elements, making it suitable for demanding mechanical rooms. Built for high-cycle rates, the 8040 series is a standard choice for contractors requiring ASCO gas valves that meet strict safety shut-off requirements. Whether you are performing a retro-fit or a new installation, this normally closed gas valve ensures seamless integration with existing burner management systems.

• Industrial Build: Die-cast aluminum body provides high structural integrity for fuel gas solenoid applications.
• Superior Seal: Nitrile (NBR) elastomers ensure tight shut-off and compatibility with common fuel gases.
• Environmental Protection: Watertight NEMA 4X housing protects internal components in harsh utility environments.
• Direct Acting: Designed to operate reliably even at zero pressure, essential for low-pressure gas trains.

Common Questions:

How do I install the ASCO 8040H8 for optimal flow?
Ensure the valve is mounted with the solenoid vertical and upright. The 1.2 Cv rating is optimized for 3/8" piping, provided your inlet pressure does not exceed the 15 PSI limit.

Is the 8040H8 compatible with LPG?
Yes, the NBR seals and aluminum construction are rated for use with natural gas, propane (LPG), and neon gases.

What should I check if the valve fails to open?
Verify 120Vac at the coil terminals. In 2-way normally closed configurations, debris in the seat or a burnt-out solenoid coil are the most common points of failure for field technicians.

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.