Johnson Controls VG1845BN+923GGB 3/4" NPT 3-Way Ball Valve Assembly with Spring Return Proportional Actuator 11.7 Cv 24V

The Johnson Controls VG1845BN+923GGB is a pre-assembled, three-way forged brass ball valve paired with a VA9203-GGB spring return proportional actuator, designed for precise flow control of hot water, chilled water, and 50% glycol solutions in commercial HVAC systems.

The VG1845BN valve body belongs to Johnson Controls' VG1000 Series — a family of high-performance ball valves featuring a characterized insert for equal percentage flow control. With a 3/4 in. NPT threaded connection and a Cv rating of 11.7, this valve delivers flow coefficients comparable to traditional globe valves, while offering the reliability and tight shutoff of a ball valve design. The stainless steel ball and blowout-proof stem ensure durability and leak-free operation up to 200 psi closeoff pressure.

The paired VA9203-GGB spring return actuator is a direct-mount, proportional electric actuator operating on 24 VAC/DC power. A mechanical spring return system provides rated torque regardless of whether power is applied, ensuring the valve returns to its fail-safe position on power loss. The proportional control accepts a 0–10 VDC (or 2–10 VDC) input signal for accurate, stepless valve positioning. An integral line voltage auxiliary switch (SPDT) is included for end-stop indication or auxiliary switching functions.

Key Features:

• Valve type: 3-way, forged brass body with stainless steel ball and blowout-proof stem
• Connection size: 3/4 in. NPT (female threaded)
• Flow coefficient: Cv 11.7 (Port A/B)
• Closeoff pressure: 200 psi
• Actuator type: VA9203-GGB spring return, direct-coupled, proportional
• Control signal: Proportional 0–10 VDC / 2–10 VDC
• Power supply: 24 VAC/DC
• Torque output: 27 lb-in (rated)
• Fail-safe action: Spring return to closed position on power loss
• Auxiliary switch: Integral SPDT line voltage switch included
• Fluid compatibility: Hot water, chilled water, 50% glycol (steam service requires optional thermal barrier)
• Safe working pressure: 580 psi water; 15 psig steam (with thermal spacer)
• Max fluid temperature: 284°F (140°C)

Factory-assembled and ready to install, the VG1845BN+923GGB simplifies procurement and commissioning for HVAC control contractors. It is compatible with Johnson Controls building automation systems and third-party controllers with standard 0–10 VDC proportional outputs.