Schneider Electric (Erie) VT3221 Valve Body

The Schneider Electric (Erie) VT3221 Valve Body is a robust, field-proven solution engineered for high-performance fluid management in commercial and residential hydronic systems. This 3-way zone valve body is optimized for two-position control, facilitating precise mixing or diverting of hot and chilled water with a maximum 50% glycol concentration. Designed with a 1/2" NPT threaded connection, it ensures a reliable seal and straightforward integration into standard piping layouts.

Built for durability, this brass-trimmed zone valve features a 1.5 Cv flow coefficient, making it ideal for fan coils, baseboards, and air handler units requiring moderate flow rates. The PopTop series modularity allows for the quick engagement of an actuator without tools, streamlining maintenance and reducing labor time on-site. Rated for a static pressure of 400 psi and medium temperatures ranging from 32° to 200°F, the VT3221 delivers consistent HVACR valve performance in demanding environments. This valve body ensures ANSI Class IV leakage ratings, maintaining tight shut-off and system efficiency.

Key Benefits

• Tool-Free Installation: Features the Erie PopTop design for rapid actuator mounting and simple field replacement.
• High Pressure Rating: Rated for up to 400 psi static pressure, suitable for diverse multi-story hydronic architectures.
• Precision Engineering: 1.5 Cv rating provides calibrated flow control for balanced heating and cooling loops.
• Versatile Media Compatibility: Validated for use with water and glycol-based systems, enhancing application flexibility.
• Compact Footprint: Designed for tight mechanical spaces, common in fan coil and baseboard installations.

Common Questions

What is the maximum close-off pressure for the VT3221?
Depending on the specific PopTop actuator used (AG or AH series), this valve body typically supports close-off pressures between 60 and 75 psid for the 1.5 Cv configuration.

Can this valve body be used for steam applications?
The VT3221 is primarily designed for liquid media. For steam applications up to 15 psig, ensure you are utilizing the specialized VS series or consult the technical datasheet for trim compatibility.

Does the VT3221 support mixing and diverting?
Yes, the 3-way body pattern is engineered to function effectively in both mixing and diverting configurations within hydronic circuits.

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.