Schneider Electric (Erie) VT3517 Valve Body

The Schneider Electric (Erie) VT3517 Valve Body is a robust choice for heavy-duty hydronic applications requiring a high-capacity 8.0 Cv flow coefficient. This 1 1/4" sweat 3-way zone valve is engineered for two-position control, making it ideal for diverting or mixing hot and chilled water in terminal units and air handlers. Built with a forged brass body and a nickel-plated stem, the VT3517 provides reliable service in systems with up to 50% glycol. Its PopTop™ design is a favorite among field technicians, as the quick-release actuator mounting allows for swift installation and maintenance without disturbing the piping. Rated for a maximum static pressure of 300 psi and fluid temperatures up to 200°F (depending on the actuator), this valve body ensures minimal pressure drop and consistent performance across residential and commercial HVAC zone valve systems. For contractors managing hydronic heating systems, the VT3517 offers the mechanical reliability and high-flow capability necessary for large-diameter zone control valve requirements.

Key Benefits

• Efficient Flow Control: High 8.0 Cv rating reduces pressure drop and optimizes pump efficiency in 1 1/4" lines.
• Field-Proven Reliability: The forged brass body and EPDM/Buna-N seals provide a long service life in closed hydronic loops.
• PopTop™ Compatibility: Effortless actuator mounting and removal saves time during initial setup and future maintenance.
• Versatile Application: Suitable for both mixing and diverting in hot water and chilled water systems.
• Tight Shut-off: Designed to meet ANSI Class IV leakage standards for superior system performance.

Common Questions

Yes, the PopTop™ design allows you to remove the AG or AH series actuator simply by pressing the release button. The valve body itself remains in the piping, so there is no need to drain or refill the loop.

The VT series is primarily intended for hot and chilled water. For steam applications up to 15 psig, you should specify the VS series valve body paired with a high-temperature actuator.

Yes, correct orientation is critical. The VT3517 can be configured for either mixing or diverting; ensure the ports are piped according to the system design to prevent water hammer and ensure proper thermal regulation.

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.