Description
The ASCO OFMSS8220G406HW24D is a 1/2″ normally closed (NC), 2-way brass solenoid valve engineered for dependable on/off fluid control in HVAC, refrigeration, and light industrial applications. Manufactured by ASCO — a globally recognized leader in solenoid valve technology — this valve delivers the precision actuation and long service life that demanding mechanical systems require.
Operating on a 24VDC coil, this valve is well-suited for integration with low-voltage building automation systems, zone control panels, and BAS-driven equipment. The normally closed design ensures the valve defaults to a closed (safe) position upon loss of power, making it an ideal choice for safety-critical fluid and gas shutoff applications.
Key Features
- 1/2″ pipe connection for easy installation into standard piping systems
- Normally Closed (NC) operation — valve closes automatically when de-energized
- 2-Way design for straightforward on/off flow control
- 24VDC coil voltage — compatible with low-voltage BAS and control systems
- Brass valve body for corrosion resistance and durability
- ASCO 8220 series construction — proven reliability in HVAC and industrial service
Typical Applications
- HVAC hydronic and chilled water systems
- Zone flow control and building automation
- Water, air, and compatible fluid shutoff
- Light commercial and industrial process control
- OEM equipment integration
Specifications
- SKU: OFMSS8220G406HW24D
- Brand: ASCO
- Pipe Size: 1/2″
- Valve Action: Normally Closed (NC)
- Valve Type: 2-Way Solenoid Valve
- Coil Voltage: 24VDC
- Body Material: Brass







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