ASCO 8290A385 Bronze 3/4″ NPT Normally Closed Piston Valve
The ASCO 8290A385 is a robust 2-way, normally closed piston valve designed for precise control of various fluids, including air, inert gases, water, oil, light slurries, steam, and hot water. Its durable construction and efficient design make it ideal for demanding industrial applications.
Key Features
- Durable Construction: The valve features a bronze body paired with PTFE seal material, ensuring longevity and reliable performance in diverse environments.
- High Flow Capacity: With a flow coefficient (Cv) of 11.0, the 8290A385 provides optimal flow control for efficient system operation.
- Temperature Resilience: Engineered to operate within a fluid temperature range of 15°F to 366°F, accommodating a wide variety of industrial applications.
- Pressure Handling: Capable of managing a maximum operating pressure differential of 150 psi for both water and steam, suitable for high-pressure systems.
- Compact Design: The valve’s dimensions—2.9 inches in length, 5.9 inches in width, and 6.25 inches in height—facilitate easy integration into existing systems, even in space-constrained environments.
Technical Specifications
- Body Material: Bronze
- Seal Material: PTFE
- Pipe Size: 3/4″ NPT
- Orifice Diameter: 3/4″
- Maximum Operating Pressure Differential: 150 psi (Water and Steam)
- Fluid Temperature Range: 15°F to 366°F
- Ambient Temperature Range: 15°F to 140°F
- Actuator Size: 50mm
The ASCO 8290A385 piston valve is engineered for reliability and efficiency, making it a valuable component in various industrial fluid control systems.













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