VG12A5GS+94NGGA Johnson Controls Valve / Actuator

Overview

The Johnson Controls VG12A5GS+94NGGA is a high-performance 2-1/2 inch, 2-way flanged ball valve assembly paired with an M9220-GGA-3 proportional electric spring-return actuator. It features an ASME Class 150 flanged configuration designed to regulate fluid flow in response to the demand of a controller in commercial HVAC systems. The valve is equipped with a 300 stainless steel ball and stem assembly, providing tight shutoff and reliable operation, while the actuator offers proportional control without auxiliary switches.

Features

• Heavy-duty 2-1/2 inch 2-way flanged ball valve assembly
• Equipped with an M9220-GGA-3 proportional electric spring-return actuator
• 300 stainless steel ball and stem assembly for enhanced durability and corrosion resistance
• Amodel flow characterizing disk provides equal percentage flow characteristics for precise control
• Features a manual override crank to reposition the actuator hub when de-energized
• Spring-return mechanism ensuring the valve returns to a closed position upon power loss
• Constructed without auxiliary switches

Specifications

• Valve Size: 2-1/2 inches
• Configuration: 2-Way
• Flow Coefficient: 47 Cv
• Actuator Type: Proportional electric spring-return (M9220-GGA-3)
• Control Signal: 0-10 VDC proportional control
• Pressure Rating: ASME Class 150 flanged
• Close-off Pressure: 100 psi for two-way configurations
• Rangeability: 500:1 for accurate regulation across load conditions
• Stem Seals: EPDM double O-ring
• Maximum Temperature Capacity: Up to 284 degrees Fahrenheit (140 degrees Celsius) water or 25 psi saturated steam

Applications

• Designed primarily to regulate the flow of hot water, chilled water, and 50/50 glycol solutions in HVAC systems
• Ideal for high-temperature water applications and low-pressure saturated steam systems up to 25 psi
• Suitable for factory or field mounting within commercial building automation and hydronic control systems