VG7842GS+8122G Johnson Controls Valve / Actuator

Overview

The Johnson Controls VG7842GS+8122G combines a 1/2-inch 3-way globe mixing valve with a VA-8122 proportional electric actuator. Housed in a durable cast bronze body with brass linear trim, this assembly provides precise fluid modulation and temperature regulation for commercial HVAC systems.

Features

The assembly features a three-way mixing configuration for versatile hydronic system integration. The non-spring return electric actuator offers proportional control with an AUTOCAL feature for simplified setup. Its slotted stem and small bonnet design make it suitable for tight mechanical spaces, while its robust construction provides ANSI Class 250 pressure resilience.

Specifications

• Valve Type: Globe, 3-Way Mixing
• Pipe Size: 1/2 Inch NPT
• Flow Coefficient: 4.6 Cv
• Flow Characteristic: Linear
• Body Material: Cast Bronze
• Trim Material: Brass
• Actuator Type: Electric, Non-Spring Return
• Supply Voltage: 24 VAC
• Control Signal: 0 to 10 VDC or 4 to 20 mA Proportional

Applications

This valve and actuator assembly is designed for fluid modulation in hydronic terminal equipment, including fan coil units, air handling units, and heat exchangers. It is ideal for commercial HVAC systems requiring precise blending of hot or chilled water streams.