Johnson Controls VG1845BNH9A4GGA 3/4 in. 3-Way Ball Valve Assembly 11.7 Cv 24V Proportional Non-Spring Return

The Johnson Controls VG1845BNH9A4GGA is a factory-assembled, 3/4 in. three-way ball valve and electric actuator assembly from the VG1000 Series. Designed for HVAC hydronic systems, this valve assembly precisely regulates the flow of hot water, chilled water, or 50/50 glycol solutions in response to signals from a building automation system (BAS) controller.

The VG1845BN valve body features a forged brass construction with stainless steel ball and blowout-proof stem, providing tight shutoff and long-term durability. With an 11.7 Cv flow coefficient and NPT threaded end connections, it is engineered for reliable performance under varying load conditions. The high-temperature linkage (H suffix) makes this assembly suitable for elevated-temperature applications.

The integrated 9A4GGA electric actuator operates on 24 VAC and accepts a 0–10 VDC proportional control signal for precise, modulating flow control. The non-spring-return (NSR) design holds the valve in its last commanded position upon power loss.

Key Features:

• Pipe Size: 3/4 in. NPT threaded end connections
• Valve Configuration: 3-way (mixing/diverting)
• Flow Coefficient (Cv): 11.7
• Valve Body Material: Forged brass with stainless steel ball and blowout-proof stem
• Actuator Voltage: 24 VAC
• Control Signal: 0–10 VDC proportional
• Actuator Action: Non-spring-return (NSR) — maintains last position on power loss
• Linkage: High-temperature linkage for elevated-temperature service
• Application: Hot water, chilled water, and 50/50 glycol HVAC systems
• Factory-assembled valve and actuator for simplified installation

The VG1845BNH9A4GGA is part of Johnson Controls' comprehensive VG1000 Series ball valve lineup, compatible with Johnson Controls building automation and controls platforms. It is ideal for terminal unit, air handling unit, and fan coil applications requiring accurate proportional flow regulation.