Description
The ASCO SV311A02N6AF5 is a direct-acting, 2-way normally closed pilot gas shutoff solenoid valve engineered for reliable fuel gas control in commercial and industrial HVAC applications. Built with a rugged aluminum body and housed in a NEMA 4X enclosure, this valve delivers dependable shutoff performance in demanding environments where moisture and corrosion resistance are essential.
Key Features
- 2-way, normally closed (N/C) configuration — valve closes automatically upon de-energization for fail-safe operation
- Direct-acting design — operates independently of line pressure for reliable performance across the full pressure range
- 1/8″ NPT pipe connection with pipe tap body for easy inline installation
- 120VAC coil voltage for compatibility with standard commercial control circuits
- 1.0 Cv flow coefficient supporting up to 53,700 BTU/hr gas capacity
- Operating pressure range: 0–15 PSI
- NEMA 4X enclosure rating — suitable for indoor and outdoor use, resistant to washdown, rain, and corrosion
- Aluminum body construction — lightweight yet durable for long service life
Specifications
- SKU: SV311A02N6AF5
- Brand: ASCO
- Valve Type: 2-Way Normally Closed Solenoid Valve
- Operation: Direct Acting
- Connection Size: 1/8″ NPT
- Voltage: 120VAC
- Flow Coefficient (Cv): 1.0
- Gas Capacity: 53,700 BTU/hr
- Pressure Range: 0–15 PSI
- Enclosure Rating: NEMA 4X
- Body Material: Aluminum
- Media: Pilot Gas (Natural Gas / LP)
Application
The SV311A02N6AF5 is ideal for use as a pilot gas shutoff valve in burner management systems, gas-fired heating equipment, and other combustion control applications. The normally closed design ensures the gas supply is automatically interrupted whenever the valve is de-energized — a critical safety feature in any gas control system. The NEMA 4X aluminum enclosure makes it well-suited for installations in mechanical rooms, rooftop units, and other environments subject to moisture or contaminants.
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