The Asco 8221G001 Solenoid Valve (8221G1) is a compact solenoid valve designed for low-flow applications that require precise control and pressure stability. With its small ⅜-inch NPT port and a Cv of 3.0, this valve is ideal for low-flow systems that still demand water hammer protection. Its slow-closing snubber, combined with a rugged brass body and NBR seals, ensures durability while preventing pressure spikes in sensitive piping networks.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-way
- Pipe Size: ⅜” NPT
- Flow Factor (Cv): 3.0
- Operating Pressure Differential:
- Water: 5 to 150 psi (AC) / 5 to 125 psi (DC)
- Maximum Fluid Temperature:
- AC: 180°F (82°C)
- DC: 150°F (65°C)
- Body Material: Brass
- Seal Material: NBR (Nitrile Butadiene Rubber), PTFE
- Voltage Options:
- AC (60Hz): 24, 120, 240, 480V
- AC (50Hz): 110, 220V
- DC: 6, 12, 24, 120, 240V
- Watt Rating:
- AC: 6.1 watts
- DC: 11.6 watts
- Coil Insulation Class: F
- Solenoid Enclosure:
- Standard: RedHat II (Watertight, Types 1-4X); RedHat (Type I)
- Optional:
- RedHat II (Explosionproof & Watertight, Types 3-9)
- RedHat (Explosionproof & Raintight, Types 3, 7, 9)
Key Features and Functionality
- Compact Design: Optimized for small piping networks and tight installation spaces.
- Precise Flow Control: Suitable for controlled, lower-volume water movement.
- Water Hammer Protection: Minimizes pressure surges in low-flow systems.
- Durable Brass Construction: Provides corrosion resistance and long-term reliability.
- Energy-Efficient Operation: Pilot-operated design reduces power consumption with stability.
Compatible Components and Related Parts
- ASCO RedHat II solenoid coils
- ASCO mounting brackets and spare coil kits
- Pressure regulators and flow control accessories
- ASCO strainers and filters for fluid protection
Industry Applications
- Small-Scale Distribution: Supports controlled water flow in compact systems.
- Automated Fluid Control: Ideal for confined industrial setups.
- HVAC & Plumbing: Ensures precise water regulation in commercial settings.
- Low Flow Applications: Critical for equipment needing precise shutoff.
Compliance and Approvals
- CSA Certified
- UL Listed (General Purpose Valves)
- CE Compliant (RedHat II series)
Installation and Operational Notes
- Closes when de-energized, opens when energized.
- Minimum 5 psi, operates down to 3 psi.
- Best performance when mounted upright and vertically.
- Follow valve markings and avoid pipe strain.
- Install a strainer or filter near the inlet to prevent debris.
We ship this product worldwide! Delivery is normally stock.
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