VG7842LT+72CHGA Johnson Controls Valve / Actuator

Overview

The Johnson Controls VG7842LT+72CHGA is a factory-assembled 3-way mixing globe valve and actuator assembly engineered to regulate the flow of hot water, chilled water, glycol solutions, and steam in HVAC systems. It features a cast bronze body, brass trim, and a spring return electric actuator that offers precise proportional control with field-selectable signaling options.

Features

• Three-way mixing design with linear flow response for accurate loop modulation.
• Spring return functionality ensuring reliable fail-safe operation upon power loss.
• Field-selectable actuator inputs supporting 0(2)-10 VDC, 0(4)-20 mA, two-position, or floating control signals.
• High-reliability, replaceable ring packing designed to extend the operating life of the valve.
• Complete factory testing to guarantee tight shut-off and minimize leakage.

Specifications

• Size: 3/4 inch
• Connection Type: NPT
• Flow Coefficient: 7.3 Cv
• Supply Voltage: 24 VAC
• Body Material: Cast Bronze
• Trim Material: Brass
• Pressure Class: ASME B16.15 Class 250
• Fluid Temperature Range: 35°F to 284°F (2°C to 140°C)
• Steam Rating: Up to 38 psig saturated steam

Applications

• Temperature regulation in commercial and industrial HVAC systems.
• Control of hot and chilled water loops in air handling units and fan coils.
• Modulation of glycol solution mixtures.
• Saturated steam flow management up to maximum pressure thresholds.