Emerson Alco 030870 Solenoid Valve

The Emerson Alco 030870 is a high-performance 2-way normally closed solenoid valve engineered for precision fluid control in industrial and HVACR systems. Built with a rugged stainless steel valve body, this 204CD1/4S3/32B model features a 1/4" NPT connection and a 0.22 Cv flow coefficient, ensuring reliable performance in demanding environments. This direct-acting solenoid valve is designed for versatility, supporting a maximum operating pressure differential (MOPD) of 300 PSI for air and water applications using AC voltage, and up to 125 PSI when utilized with DC power. Its unidirectional flow design and stainless steel construction provide superior resistance to corrosion, making it a staple for technicians requiring durable Alco Controls components for liquid line or pneumatic service. The 3/32" orifice size offers the ideal balance of flow and pressure management for industrial solenoid applications where tight shut-off and consistent cycling are non-negotiable.

• Corrosion-Resistant Construction: Features an industrial stainless steel body for extended service life in harsh environments.
• Dual-Voltage Pressure Handling: Capable of managing up to 300 PSI (AC) or 125 PSI (DC), providing flexibility across different control systems.
• Precision Flow Control: A 0.22 Cv rating and 3/32" orifice ensure accurate metering for air and water media.
• Compact NPT Interface: Standard 1/4" NPT threaded ports facilitate seamless integration into existing pipe runs.
• Normally Closed Logic: Provides fail-safe operation, ensuring the valve remains closed when de-energized to prevent unintended flow.

What is the maximum pressure rating for this Alco valve?
The Emerson 030870 supports a maximum working pressure of up to 500 PSI, with an operating pressure differential of 300 PSI for AC voltage and 125 PSI for DC voltage when handling air or water.

Is the 204CD1/4S3/32B compatible with steam?
While the 204CD series includes steam-rated versions, this specific stainless steel solenoid valve is optimized for air and water. For steam applications, verify the elastomer and seal compatibility (typically PTFE) before installation.

Can this valve be mounted in any orientation?
For optimal reliability and to prevent sediment buildup in the solenoid enclosing tube, it is recommended to mount the valve with the solenoid coil in a vertical, upright position, though direct-acting valves offer more mounting flexibility than pilot-operated models.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.