Overview
The ASCO 8210G002 120/60 110/50 is a pilot-operated, normally closed 2-way solenoid shutoff valve engineered for general industrial fluid control. Housed in the rugged Red Hat II enclosure, this valve features a durable brass body and internal pilot operation for consistent performance across varied pressure conditions. The dual voltage rating (120/60 Hz and 110/50 Hz) makes it suitable for global installations and applications where voltage supply varies by region or facility.
Key Features
- Pilot-operated design enables smooth operation under fluctuating system pressures
- Normally closed—seals until solenoid coil is energized
- Red Hat II NEMA 4 enclosure provides protection in industrial and washdown environments
- 1/2″ NPT female pipe connections for standard industrial piping integration
- Brass construction delivers corrosion resistance and durability for long service life
- Compatible with air, inert gas, water, and light oil media
- Low internal leakage and high flow capacity (4 Cv)
Technical Specifications
- Valve Type: 2-way, normally closed, pilot-operated solenoid
- Body Material: Brass
- Pipe Size: 1/2″ NPT (female)
- Orifice: 5/8″ diameter
- Flow Rating (Cv): 4
- Voltage/Frequency: 120VAC/60 Hz or 110VAC/50 Hz
- Seal Material: NBR (nitrile) — resists water, air, and light oils
- Operating Pressure Range: 5 psid minimum; 125–150 psid maximum (varies by fluid type)
- Operating Temperature Range: 32°F to 125°F (0°C to 52°C)
- Enclosure Rating: NEMA 4 (Red Hat II — watertight, corrosion-resistant)
- Mounting: Can be mounted in any position (except DC solenoids must be vertical)
- Model/Series: Red Hat II Series 8210, part number 20043
Typical Applications
- Industrial compressed air systems and pneumatic control
- Water supply shutoff and flow regulation in cooling systems and washdown equipment
- Light oil flow control in hydraulic circuits and lubrication systems
- Car wash and detailing equipment (water/air solenoid control)
- Air compressor inlet/outlet gating and pressure relief
- Laundry and textile machinery fluid control
- Industrial water pumping and recirculation systems
- Gas burner safety shutoff (normally closed design prevents accidental flow)
Compatibility & Replacements
Compatible With
- Standard industrial 1/2″ NPT piping systems (male and female connections)
- Pneumatic and hydraulic control circuits (air, inert gas, water, light oil)
- 24 VDC and AC voltage solenoid control systems (coil-driven actuation)
- Red Hat II solenoid-enclosure supply chains (ASCO-compatible systems)
- HVAC, refrigeration, and water treatment automation panels
Replaces / Drop-In Replacement For
- ASCO 20043 (identical part number in Red Hat II line)
- ASCO 8210 Series valves with matching voltage/frequency and 1/2″ NPT configuration
- Other 2-way brass solenoid valves rated 120VAC/60 Hz with 1/2″ NPT and 4 Cv flow rating
Works With
- Solenoid coil replacement kits from ASCO 8210 series (voltage-selectable coils)
- Inline strainers and pressure gauges (1/2″ NPT threaded ports)
- PLC and industrial control relay outputs (24 VDC or 120 VAC solenoid coils)
- Flow-control needle valves and manifold blocks with 1/2″ NPT cavity
- Pneumatic/hydraulic system integration via standard brass fittings














