Description
The ASCO 8220G7 is a heavy-duty, 2-way normally closed solenoid valve engineered for demanding steam and hot water applications in commercial and industrial HVAC systems. Built on ASCO’s proven pilot-operated design, this valve delivers reliable, positive shutoff and smooth flow control across a wide range of operating conditions.
Key Features
- 2-way, normally closed (NC) configuration — valve closes automatically when de-energized for fail-safe operation
- Pilot-operated design provides high flow capacity with low power consumption
- 13.5 Cv flow coefficient for efficient, high-volume fluid handling
- 1″ NPT port connections for straightforward inline installation
- 120VAC coil voltage for compatibility with standard commercial power supplies
- Brass body construction offers excellent corrosion resistance for steam and hot water service
- EPDM diaphragm material rated for compatibility with steam and hot water media
- NEMA 4X enclosure rating — suitable for indoor and outdoor use, resistant to washdown, rain, and corrosion
Operating Specifications
- Voltage: 120VAC
- Flow Coefficient (Cv): 13.5
- Connection Size: 1″ NPT
- Steam Pressure Range: 5–50 PSI
- Hot Water Pressure Range: 5–150 PSI
- Valve Action: Normally Closed (NC)
- Operation Type: Pilot Operated
- Body Material: Brass
- Diaphragm Material: EPDM
- Enclosure Rating: NEMA 4X
Typical Applications
- Steam distribution and control in boiler and hydronic systems
- Hot water supply and shutoff in commercial HVAC equipment
- Process heating and temperature control systems
- Industrial fluid control requiring NEMA 4X environmental protection
The ASCO 8220G7 is backed by ASCO’s reputation for precision fluid control and is an ideal replacement or upgrade valve for systems requiring dependable normally closed operation in steam or hot water service.
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