The Asco 8290A020 Solenoid Valve (8290A20) is an angle-body, pressure-operated, normally closed valve for controlling steam, hot water, and inert fluids. Its high 52 Cv capacity and under-disc flow path minimize water hammer during shutoff. This model is used in industrial processes such as CIP systems, boiler loops, and auxiliary fluid circuits.
Technical Specifications
- Valve Type: Pressure Operated, Normally Closed, 2-Way
- Pipe Size: 1 1/2″ NPT
- Flow Factor (Cv):
- On/Off: 52
- Proportional: 33
- Operating Pressure Differential:
- Min: 0 psi
- Max (Fluids): 60 psi
- Max (Steam): 60 psi
- Air or Water Pilot Pressure:
- Min: 60 psi
- Max: 150 psi
- Maximum Fluid Temperature: 366°F (186°C)
- Construction:
- Body Material: Bronze
- Disc Entry: Under the Disc
- Disc Material: Brass
- Disc Seal: PTFE
- Stem Material: 431 Stainless Steel
- Stuffing Box: Brass
- Stuffing Box Seal: PTFE Chevron
- Wiper Seal: FKM
- Operator Size: 63 mm
Key Features and Functionality
- High Flow Capacity: Supports large volume transfer at 52 Cv.
- Steam and Slurry Ready: Handles aggressive fluid media reliably.
- Anti-Water Hammer Design: Fluid enters beneath the disc to reduce shock.
- Guided Stem Assembly: Dual oversized bearings ensure linear motion.
- Sealed Actuator Housing: Double O-ring protection against ingress.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8290 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Food and Beverage: Manages steam or CIP auxiliary systems.
- Chemical Processing: Used for fluid shutoff and batch feed.
- Boiler Systems: Controls hot water or steam injection.
- Pulp and Paper: Handles light slurry and condensate lines.
- Industrial Utilities: General on/off control for utility piping.
Compliance and Approvals
- RoHS Compliant
- NEMA Type 4 (Watertight)
- NEMA Type 4X (Corrosion-Resistant)
Installation and Operational Notes
- Install the valve upright for reliable actuation.
- Use filtered, dry pilot air or water supply.
- Confirm PTFE compatibility with process fluid.
- Maintain minimum pilot pressure for full stroke.
- Flush the system before initial commissioning.
Series Catalog
Asco 8290 Angle Body Multi-purpose Valves
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