Description
ASCO 8040H8 Two-Way Normally Closed Solenoid Valve
The ASCO 8040H8 is a heavy-duty, two-way normally closed solenoid valve engineered for reliable fuel gas control in commercial and industrial HVAC applications. With a 3/8″ NPT port connection, 120VAC coil voltage, and a 1.2 Cv flow coefficient, this valve delivers precise, dependable shutoff across a 0–15 PSI operating pressure range — making it an ideal fit for natural gas and LP gas service lines.
Durable Construction
- Aluminum valve body for lightweight strength and corrosion resistance
- NBR (Buna-N) seals for compatibility with fuel gas media
- NEMA 4X enclosure rating — suitable for indoor and outdoor installations, including wet and corrosive environments
Key Specifications
- Valve Type: 2-Way, Normally Closed (NC)
- Port Size: 3/8″ NPT
- Coil Voltage: 120VAC
- Flow Coefficient (Cv): 1.2
- Operating Pressure Range: 0–15 PSI
- Media: Fuel Gas
- Body Material: Aluminum
- Seal Material: NBR (Nitrile Butadiene Rubber)
- Enclosure Rating: NEMA 4X
Application
Designed for use in fuel gas supply lines on burners, boilers, furnaces, and other gas-fired equipment. The normally closed configuration ensures the valve defaults to the closed (safe) position upon loss of power, providing a critical safety function in gas control systems. The NEMA 4X enclosure protects the coil assembly against dust, water, and corrosive atmospheres, making this valve well-suited for demanding mechanical room and rooftop installations.
Why Choose the ASCO 8040H8?
- Trusted ASCO quality for mission-critical gas shutoff applications
- Fail-safe normally closed design for enhanced system safety
- NEMA 4X rated for use in harsh or wet environments
- NBR seals provide excellent resistance to fuel gas media
- Compact 3/8″ NPT body fits standard gas line configurations
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