The Asco 8290A495 Solenoid Valve is a pressure-operated, angle-body piston valve configured for normally closed service in high-flow utility and process systems. Its Cv rating of 56 delivers consistent performance for steam, water, and slurry transfer at elevated pressures. The stainless steel construction and a 125 mm operator enable long-term durability in aggressive or corrosive environments.
Technical Specifications
- Valve Type: Pressure Operated, Normally Closed, 2-Way
- Pipe Size: 1 1/2″ NPT
- Flow Factor (Cv):
- On/Off: 56
- Proportional: 56
- Operating Pressure Differential:
- Min: 0 psi
- Max (Fluids): 240 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: 316L Stainless Steel
- Disc Entry: Under the Disc
- Disc Material: 304L Stainless Steel
- Disc Seal: PTFE
- Stem Material: 431 Stainless Steel
- Stuffing Box: 303 Stainless Steel
- Stuffing Box Seal: PTFE Chevron
- Wiper Seal: FKM
- Operator Size: 125 mm
Key Features and Functionality
- Corrosion-Resistant Build: 316L stainless body withstands aggressive media.
- High Cv Output: Ideal for rapid steam and water discharge.
- Anti-Water Hammer Flow Path: Under-disc entry reduces pressure shock.
- Actuator Protection: Dual O-ring seal prevents ingress and wear.
- Visual/Electrical Feedback Ready: Compatible with optional signal accessories.
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 hygienic, FDA-compliant options.
- Manufacturing: Regulates fluids in machinery with high cycle reliability.
- Automotive/Car Wash: Handles dirty water with rugged seals and easy diagnostics.
- HVAC/Steam: Manages heat flow with water-hammer protection and NEMA enclosures.
- Chemical Processing: Suitable for corrosives with stainless steel and control accessories.
Compliance and Approvals
- RoHS Compliant
- Type 4 Enclosure
- Type 4X Enclosure
Installation and Operational Notes
- Mount the actuator upright to ensure proper drainage and performance.
- Clean pipes before installation and use sealants sparingly to avoid contamination.
- Flush the system after installation to remove debris and protect the valve seat.
- Inspect and clean the valve periodically to prevent buildup on seals and internals.
- Match coil specs and disconnect power before replacing the solenoid coil.
Series Catalog
Asco 8290 Angle Body Multi-purpose Valves
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