Overview
The ASCO 8290A385 is a pressure-operated, direct-acting 2-way angle body piston valve designed for demanding industrial applications. This normally closed valve features a rugged bronze body construction with a 3/4″ NPT connection and maximum pressure rating of 150 PSI. The soft-closing piston design and straight-through flow path make it ideal for on/off fluid control in pneumatic, hydraulic, and process automation systems.
Key Features
- 2-way (2/2) normally closed configuration with direct-acting angle body design
- Bronze body construction for durability and corrosion resistance
- Air/water pilot-operated with 60-150 PSI pilot pressure range
- Soft-closing piston action prevents water hammer and ensures tight shutoff
- Straight-through flow path with 11.0 Cv (on/off) for maximum flow rates
- Compatible with air, inert gas, water, light oil, light slurries, steam, and hot water
- 50mm operator (valve stem) with 360° rotation for flexible pilot port positioning
- Buna-N sealing material for reliable operation
Technical Specifications
- Model: ASCO 8290A385
- Body Material: Bronze
- Valve Type: 2/2 Angle Body Piston (Normally Closed)
- Port Size: 3/4″ FPT (Female Pipe Thread)
- Orifice Diameter: 3/4″
- Maximum Pressure: 150 PSI main / 150 PSI pilot
- Maximum Temperature: 366°F (fluid and steam)
- Pilot Pressure Range: 60-150 PSI
- Flow Coefficient (Cv): 11.0 (on/off) / 8.3 (proportional)
- Operator Size: 50mm
- Sealing Material: Buna-N
- Weight: Approximately 2.0 lbs
Typical Applications
The ASCO 8290A385 is used across manufacturing, process control, and industrial automation for:
- Compressed air system isolation and control
- Hydraulic circuit on/off switching
- Water and fluid process applications
- Steam line control and hot water systems
- Industrial pneumatic automation circuits
- General industrial process valve replacement for motorized or air-actuated ball valve assemblies
- Food and beverage industry auxiliary fluid control
Compatibility & Replacements
Compatible With
- ASCO 8320 Series 3-way pilot valves (recommended for operation)
- Standard 3/4″ NPT pneumatic and hydraulic systems
- Industrial compressed air networks
- Process control automation systems
- Temperature-controlled water and steam systems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The ASCO 8290A385 can replace motorized or air-actuated ball valve packages in equivalent 3/4″ NPT applications with similar pressure and flow requirements.
Works With
- Air and water pilot-operated control systems
- Manual solenoid pilot valves
- Proportional control via 0-10 VDC, 0-20 mA, or 4-20 mA signal (optional configuration)
- Visual or electrical position indicators (optional add-ons)
- Industrial pneumatic and hydraulic manifolds
