Description
The Honeywell VGF31EM40 is a heavy-duty 4-inch flanged 3-way mixing valve engineered for precise flow control in commercial and industrial HVAC hydronic systems. With a high flow coefficient of Cv=160 and an equal percentage flow characteristic, this valve delivers accurate, stable modulation across a wide range of operating conditions — making it ideal for large-scale heating and cooling applications where consistent temperature control is critical.
Designed to ANSI 125 flanged end connection standards, the VGF31EM40 integrates seamlessly into existing piping infrastructure, simplifying installation and ensuring a reliable, leak-free seal. The mixing configuration allows the valve to blend two fluid streams into one outlet, providing effective hydronic mixing for air handling units, heat exchangers, fan coil systems, and more.
Key Features
- 4-inch (4″) flanged end connections for easy integration into commercial piping systems
- 3-way mixing configuration — blends two inlet streams into a single controlled outlet
- ANSI 125 pressure class flanged connections for dependable, standards-compliant installation
- High flow coefficient of Cv=160, suited for large-volume hydronic applications
- Equal percentage (EQ%) flow characteristic for precise, stable modulation across the full stroke range
- Designed for compatibility with Honeywell actuators for automated control
Typical Applications
- Commercial and industrial hydronic heating and cooling systems
- Air handling units (AHUs) and fan coil units
- Heat exchangers and chiller/boiler mixing loops
- Large-scale building automation and temperature control systems
Specifications
- SKU: VGF31EM40
- Brand: Honeywell
- Valve Size: 4 inch (4″)
- End Connection: Flanged (FLGD)
- Valve Type: 3-Way Mixing
- Pressure Rating: ANSI Class 125
- Flow Coefficient: Cv = 160
- Flow Characteristic: Equal Percentage (EQ%)
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