The Asco 8290A485 Solenoid Valve is a pressure-operated, angle-body piston valve configured for normally closed service in high-capacity steam and utility applications. A Cv rating of 77 enables rapid evacuation and sustained flow in large thermal or process circuits. This model also incorporates a 125 mm operator, under-disc flow design, and steam-rated sealing for demanding industrial environments.
Technical Specifications
- Valve Type: Pressure Operated, Normally Closed, 2-Way
- Pipe Size: 2″ NPT
- Flow Factor (Cv):
- On/Off: 77
- Proportional: 77
- Operating Pressure Differential:
- Min: 0 psi
- Max (Fluids): 150 psi
- Max (Steam): 150 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: 125 mm
Key Features and Functionality
- Durable Fluid Handling: Effectively manages steam, hot water, solvents, and light slurries.
- Double O-Ring Seal: Protects critical actuator internals from process media.
- Oversized Stem Bearings: Ensure smooth, stable valve stem operation consistently.
- FDA Compliant Options: Suitable for hygienic food and beverage processing applications.
- Proportional Control Support: Compatible models allow for precise flow rate adjustments.
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: Controls steam in CIP systems with FDA options.
- Manufacturing: Regulates diverse fluids in automated machinery reliably.
- Carwash Systems: Manages treated and dirty water with robust seals.
- Steam Systems: Optimizes heat control with anti-water hammer design.
- Chemical Plants: Handles corrosive media effectively via material selection.
Compliance and Approvals
- RoHS Compliant
- Type 4 Enclosure
- Type 4X Enclosure
Installation and Operational Notes
- Mount the actuator upright for optimal drainage and performance.
- Clean pipes pre-install; use sealants sparingly.
- Flush the system post-install to remove particulate debris.
- Periodically inspect, clean valve internals for buildup.
- Match coil specs; disconnect power before service.
Series Catalog
Asco 8290 Angle Body Multi-purpose Valves
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