Emerson Alco 038879 Solenoid Valve

The Emerson Alco 038879, also identified as the 222CB1-1/2B1-1/2B industrial solenoid valve, is a heavy-duty, 2-way normally closed solution designed for high-flow air and water applications. Featuring a 1 1/2" NPT connection and a robust flow coefficient of 25.0 Cv, this valve ensures minimal pressure drop in demanding piping systems. The industrial brass valve body provides the necessary structural integrity for high-cycle environments, operating effectively within a pressure range of 0-250 PSI. As a normally closed solenoid valve, it provides reliable fail-safe shut-off when de-energized, making it a staple for large-scale fluid control. Technicians frequently specify this Emerson 222 series valve for its compatibility with pilot-operated diaphragms, ensuring consistent performance in both air and water solenoid 1.5 inch installations. Its rugged construction is built to withstand the rigors of industrial mechanical rooms while maintaining precise seat sealing.

Key Performance Specifications

• High-Flow Capacity: Engineered with a 25.0 Cv rating to handle high-volume fluid transfer without excessive turbulence.
• Normally Closed Logic: Ensures flow is strictly halted upon power loss, serving as a critical safety component in system design.
• Durable Brass Construction: Provides superior resistance to corrosion in standard water and pneumatic applications.
• Versatile Pressure Rating: Handles system pressures up to 250 PSI, accommodating a broad range of commercial utility requirements.
• Threaded Interface: Standard 1 1/2" NPT ports allow for straightforward integration into existing rigid piping schedules.

Technical FAQs

Is the 038879 compatible with steam or refrigerant lines?
This specific brass body model (222CB1-1/2B1-1/2B) is optimized for air and water applications up to 250 PSI. Always verify seal material compatibility if using specialized fluids.

How do I troubleshoot a failure to open in a high Cv valve like this?
Check for adequate voltage at the coil and ensure the differential pressure is within the 0-250 PSI range. Debris in the pilot orifice is a common cause of restricted diaphragm movement.

Does this valve require a minimum pressure differential to operate?
While designed for 0-250 PSI, ensure that the solenoid coil matches the specific electrical load of your controller to prevent chattering or incomplete lifting of the plunger.

This item is not eligible for free shipping.

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.