The Asco 8290A034 Solenoid Valve (8290A034) is a pressure-operated, normally open, angle-body piston valve featuring a high-flow 2″ port and 63 mm actuator. Its robust stem guidance system and anti-water hammer disc design ensure smooth, reliable performance in aggressive service. It is widely used in thermal process loops, steam blowdown systems, and CIP rinse stages across industrial plants.
Technical Specifications
- Valve Type: Pressure Operated, Normally Open, 2-Way
- Pipe Size: 2″ NPT
- Flow Factor (Cv):
- On/Off: 68
- Operating Pressure Differential:
- Min: 0 psi
- Max (Fluids): 105 psi
- Max (Steam): 105 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: 63 mm
Key Features and Functionality
- Large-Bore Flow Path: Handles rapid release of process media.
- Anti-Hammer Design: Entry under disc moderates closure rate.
- Sealed Stem System: FKM wiper deflects particulates and debris.
- Durable Actuator Housing: Composite material resists washdowns.
- Guided Piston Travel: Dual bearing support ensures long-term accuracy.
Compatible Components and Related Parts
- ASCO 8290 Compact Positioner
- ASCO 8290 Signaling Box
- ASCO 8290 Linear Position Indicator
- ASCO 8290 Stroke Limiter
Industry Applications
- Steam Generation Units: Manages high-flow discharge and venting.
- CIP and SIP Systems: Coordinates thermal rinse and purge cycles.
- Industrial Utilities: Distributes hot fluids in core process loops.
- Chemical Processing: Supports fast isolation in thermal zones.
- Beverage Production: Interfaces with hot water and vapor lines.
Compliance and Approvals
- RoHS Compliant
- NEMA Type 4 (Watertight)
- NEMA Type 4X (Corrosion-Resistant)
Installation and Operational Notes
- Mount the actuator vertically to ensure condensate drainage.
- Clean and prep piping; avoid excess sealant.
- Flush the entire system to remove installation debris.
- Periodically disassemble the valve to clean seat surfaces.
- Replace the solenoid coil with a matching voltage/wattage.
Series Catalog
Asco 8290 Angle Body Multi-purpose Valves
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