Danfoss 032U6521 Solenoid Valve

The Danfoss 032U6521 Solenoid Valve is a rugged, servo-operated 2/2-way valve body designed for high-demand HVACR and industrial fluid control. As an EVSI 12 (EV220B 12) series component, this normally closed (N/C) valve features a 1/2; inch NPT connection and a 12mm orifice, optimized for medium flow volumes with a Kv value of 2.5 m³/h (approx. 2.9 Cv). Its brass construction and high-grade EPDM seal material make it ideal for neutral media, specifically water and brine applications, operating within a temperature range of 14°F to 194°F. This pilot-operated unit requires a minimum differential pressure of 4.35 psi (0.3 bar) to function correctly, supporting a maximum working pressure of 145 psi. Engineered for longevity, the EV220B series incorporates a built-in pilot filter and a water hammer damped design to protect system integrity during rapid cycling. Note that this is a valve body only; a compatible Danfoss clip-on coil must be selected separately to complete the assembly.

• Application Versatility: Specifically rated for water and brine, making it a reliable choice for commercial cooling and heating loops.
• Durable Sealing: Equipped with EPDM seals to ensure tight shut-off and resistance to degradation in neutral media.
• Serviceable Design: The EV220B 12 series is fully serviceable with available spare parts, allowing for internal diaphragm or pilot cleaning without removing the entire brass body.
• Simplified Installation: Features a standard 1/2-14 NPT thread and requires no tools for coil mounting thanks to the clip-on design.

• Why won't the valve open even with the coil energized? Ensure you have met the minimum differential pressure requirement of 0.3 bar (4.35 psi). Without this delta, the servo-operated diaphragm cannot lift.
• Does this valve include the solenoid coil? No, the 032U6521 is the valve body only. You must match it with the appropriate AC or DC clip-on coil for your system's voltage requirements.
• Can this be used for steam or oil? This specific model (032U6521) uses EPDM seals, which are optimized for water/brine. For oil or air, an FKM or NBR variant is typically required.

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.