The Asco 8220G015 Solenoid Valve (8220G15) is a pilot-operated, normally closed valve designed for demanding steam and hot water applications. It offers high-capacity flow control in extreme conditions, making it ideal for large-scale thermal systems. Once opened at a higher pressure, the valve will remain open down to an inlet pressure of 3 psi.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 2 1/2″ NPT
- Flow Factor (Cv): 45.0
- Operating Pressure Differential:
- Steam: 5 to 50 psi
- Hot Water: 5 to 150 psi
- Maximum Fluid Temperature:
- Steam: 300°F (149°C)
- Hot Water: 210°F (99°C)
- Body Material: Brass
- Seal Material: EPDM or PTFE
- Voltage Options:
- AC: 24, 120, 240, 480 V
- DC: 6, 12, 24, 120, 240 V
- Watt Rating:
- AC: 10.1 watts
- Coil Insulation Class: F
- Solenoid Enclosure:
- Standard: RedHat II – Watertight, Types 1, 2, 3, 3S, 4, and 4X
- Optional: Explosionproof & Watertight, Types 3, 3S, 4, 4X, 6, 6P, 7, and 9
Key Features and Functionality
- High-Temperature Durability: Operates reliably in hot water and steam systems.
- High Flow Design: Moves large volumes with reduced pressure drop.
- Thermal-Resistant Coil: Class F insulation supports elevated ambient heat.
- Pilot-Operated Control: Maintains consistent operation under varying loads.
- Brass Body Construction: Resists corrosion in demanding environments.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8220 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Boiler Systems: Regulates steam or return water flow.
- Sterilizers and Autoclaves: Activates flow during heat-pressure cycles.
- Process Heating Units: Directs media to heating equipment.
- High-Temperature Rinse Lines: Feeds hot water to spray systems.
- Steam Loop Distribution: Controls flow to zone or branch lines.
Compliance and Approvals
- UL Listed
- CSA Certified
- Meets Applicable CE Directives
Installation and Operational Notes
- Verify solenoid coil voltage before energizing.
- Depressurize all lines before installation or service.
- Install a fine-mesh strainer upstream of the valve inlet.
- Avoid misalignment or torque when connecting piping.
- After wiring, energize the coil and confirm audible actuation.
Series Catalog
Asco Hot Water and Steam Valves Two Way
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