The Asco 8263H304 Solenoid Valve is a direct-acting, normally closed valve for steam and hot water shutoff in small-format heating and sterilization systems. It supports service up to 210 psi hot water and 125 psi steam and operates at temperatures as high as 353°F. This model is commonly installed in laundry systems, autoclaves, and high-temp wash skids.
Technical Specifications
- Valve Type: Direct Acting, Normally Closed, 2-Way
- Pipe Size: 3/8″ NPT
- Flow Factor (Cv): 0.35
- Operating Pressure Differential:
- Steam (AC): 0 to 125 psi
- Hot Water (AC): 0 to 210 psi
- Maximum Fluid Temperature:
- Steam (AC): 353°F (178°C)
- Hot Water (AC): 210°F (99°C)
- Body Material: Brass
- Seat Material: Stainless Steel
- Seal Material: EPDM or PTFE
- Voltage Options:
- AC: 24, 120, 240, 480 V (60 Hz); 110, 220 V (50 Hz)
- DC: Not available for this model
- Watt Rating: 10.1 W (AC)
- Solenoid Enclosure:
- Standard: NEMA 1, 2, 3, 3S, 4, 4X (Watertight, Corrosion-Resistant)
- Optional: Explosionproof & Watertight (Types 3, 3S, 4, 4X, 6, 6P, 7, 9)
Key Features and Functionality
- Miniature Valve Body: Designed for small thermal systems.
- High-Temp Endurance: Operates up to 353°F steam.
- Direct-Acting Design: Activates without pilot assistance.
- Balanced Pressure Ratings: Handles both steam and water reliably.
- Low Cv Configuration: Supports controlled low-flow applications.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8263 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Laundry Equipment: Controls high-temp fluid delivery lines.
- Autoclave Systems: Delivers steam to sterilization chambers.
- Steam Sterilizers: Regulates pressurized vapor supply.
- Thermal Wash Skids: Supports closed-loop heating circuits.
- Food Processing: Introduces clean steam in washdown zones.
Compliance and Approvals
- CSA Certified
- CE Marked (RedHat II Series)
Installation and Operational Notes
- Install upright for consistent solenoid actuation.
- Confirm EPDM or PTFE seal compatibility with the media.
- Use only with approved AC voltage sources.
- Ensure all pressure and temperature ratings are respected.
- Mount in protected or enclosure-rated environments.
Series Catalog
Asco Hot Water and Steam Valves 8263-H
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