Description
The Johnson Controls VG1245AD+9A4GGA is a factory-assembled, two-way actuated ball valve engineered for precise flow control in commercial HVAC and building automation applications. Combining a forged brass valve body with stainless steel trim and a non-spring-return electric actuator, this assembly delivers reliable, repeatable performance in demanding hydronic and chilled water systems.
Valve Body Features
- 1/2″ NPT end connections for easy installation into standard piping systems
- Two-way, equal percentage flow characteristic for accurate modulating control
- 1.2 Cv flow coefficient for precise flow balancing in small-to-medium circuits
- Forged brass body construction for durability and corrosion resistance
- Stainless steel trim for extended service life and leak-tight shutoff
Actuator Features
- 24Vac power supply for compatibility with standard building automation and DDC systems
- Accepts 0–10Vdc and 2–10Vdc control signals for flexible integration
- 4–20mA input capability with included 500-ohm resistor for current-loop control
- Non-spring-return design retains valve position on power loss
- 120″ (10 ft) plenum-rated cable for installation in air-handling and plenum spaces
Key Specifications
- SKU: VG1245AD+9A4GGA
- Valve Size: 1/2″ NPT
- Flow Characteristic: Two-Way Equal Percentage
- Cv: 1.2
- Body Material: Forged Brass
- Trim Material: Stainless Steel
- Supply Voltage: 24Vac
- Control Signal: 0–10Vdc / 2–10Vdc / 4–20mA (with 500-ohm resistor)
- Actuator Type: Non-Spring Return, Electric
- Cable Length: 120″ Plenum-Rated
Ideal Applications
- Commercial HVAC hydronic heating and cooling systems
- Fan coil units and air handling units
- Building automation and DDC control systems
- Chilled water and hot water modulating control loops
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