The Asco 8290A489 Solenoid Valve is a normally open valve with a bronze body and 125 mm operator for high-flow utility control. Its 56 Cv rating supports continuous discharge in steam and rinse circuits, while under-disc flow reduces closure shock. Position indicators and stroke limiters are available options to enhance system feedback and adjustment.
Technical Specifications
- Valve Type: Pressure Operated, Normally Open, 2-Way
- Pipe Size: 1 1/2″ NPT
- Flow Factor (Cv):
- On/Off: 56
- Operating Pressure Differential:
- Min: 0 psi
- Max (Fluids): 240 psi
- Max (Steam): 150 psi
- Air or Water Pilot Pressure:
- Min: Varies
- 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: 125 mm
Key Features and Functionality
- Fail-Open Functionality: Maintains flow during power loss conditions.
- Bronze Body Durability: Withstands steam, rinse water, and slurries.
- Under-disc Flow: Reduces closure hammer effect.
- High Cv Output: Efficient discharge in vent or bypass lines.
- Accessory Compatibility: Works with signal kits and stroke limiters.
Compatible Components and Related Parts
- ASCO 8290 Compact Positioner
- ASCO 8290 Signaling Box
- ASCO 8290 Linear Position Indicator
- ASCO 8290 Stroke Limiter
Industry Applications
- Food & Beverage: Open-loop drain valve in thermal utility skids.
- Manufacturing: Discharges coolant or rinse media in equipment lines.
- Car Wash & Rinse: Bypasses rinse stages when de-energized.
- HVAC/Steam: Automatically opens under loss of control signal.
- Chemical: Supports flushing in auxiliary tanks and headers.
Compliance and Approvals
- RoHS Compliant
- Type 4 Enclosure
- Type 4X Enclosure
Installation and Operational Notes
- Mount vertically for consistent actuator drainage.
- Clean lines before startup to protect the seat.
- Apply sealants sparingly on threaded joints.
- Ensure pilot pressure is within the stated range.
- Disconnect power before replacing or testing the coil.
Series Catalog
Asco 8290 Angle Body Multi-purpose Valves
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