Description
Overview
The Johnson Controls VG1845AB+9A4GGA is a factory-matched valve and actuator assembly engineered for precise flow control in commercial HVAC hydronic systems. This combination pairs the VG1845AB stainless steel 3-way globe valve with the 9A4GGA electric spring-return actuator, delivering reliable mixing or diverting service in a single, ready-to-install package.
Valve Features
- 3-way globe valve configuration for mixing or diverting hydronic applications
- 1/2″ NPT threaded end connections for straightforward installation
- Stainless steel valve body for superior corrosion resistance and long service life
- Flow coefficient (Cv) of 0.50 for accurate, low-flow hydronic control
- Equal percentage flow characteristic for stable, responsive modulation
- Designed for use with chilled water, hot water, and glycol solutions
Actuator Features (9A4GGA)
- Electric spring-return actuator provides fail-safe positioning on power loss
- Factory-mounted and matched to the VG1845AB valve body
- Compatible with standard 2–10 VDC or 4–20 mA control signals (per actuator model configuration)
- Compact design suitable for tight mechanical room installations
- Manual override capability for commissioning and maintenance
Applications
- Commercial HVAC air handling units (AHUs) and fan coil units (FCUs)
- Hydronic heating and cooling coil control
- Building automation and direct digital control (DDC) systems
- Variable flow hydronic distribution systems
Why Choose Johnson Controls VG Series Valves
Johnson Controls VG1800 series valves are an industry-standard choice for commercial building HVAC applications. The stainless steel body construction ensures compatibility with a wide range of system fluids and provides exceptional durability compared to brass alternatives. Factory pairing of the valve and actuator eliminates field-matching guesswork and ensures optimized performance right out of the box.
Specifications
- SKU: VG1845AB+9A4GGA
- Valve Type: 3-Way Globe Valve
- Connection Size: 1/2″ NPT
- Body Material: Stainless Steel (SS)
- Flow Coefficient (Cv): 0.50
- Actuator Type: Electric Spring-Return
- Brand: Johnson Controls
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