VG7842NT+71CHGA Johnson Controls Valve / Actuator

Overview

The Johnson Controls VG7842NT+71CHGA is a 1-inch, 3-way mixing globe valve assembly integrated with a VA7810-HGA-2 non-spring return electric actuator. Designed to regulate fluid flow in commercial HVAC systems, this assembly features a durable cast bronze body with brass trim. The direct-coupled design eliminates the need for external linkages, providing highly reliable and precise linear flow control.

Features

• Direct-coupled actuator design eliminates the need for separate mounting linkages.
• Long-life replaceable ring packing provides maximum reliability and extended service life.
• Factory-tested to ensure tight shut-off and optimal ANSI Class IV leakage performance.
• Field-selectable actuator switches allow easy conversion between proportional, floating, or on/off control modes.
• Robust cast bronze body and brass trim for enhanced durability and corrosion protection.

Specifications

• Valve Size: 1 inch
• Flow Coefficient: 11.6 Cv
• Connection Type: Female NPT
• Valve Configuration: 3-Way Mixing Globe Valve
• Body Material: Cast Bronze
• Trim Material: Brass
• Actuator Model: VA7810-HGA-2 Non-Spring Return (NSR)
• Supply Voltage: 24 VAC, 50/60 Hz (6 VA maximum)
• Control Input: Proportional 0(2)-10 VDC, 0(4)-20 mA, Floating, or Two-Position (Field Selectable)
• Close-off Pressure: 182 to 213 psig
• Actuator Force: 180 lb force for tight close-off
• Fluid Temperature Range: 35 to 284 degrees F (2 to 140 degrees C)
• Maximum Steam Pressure: 38 psig saturated steam
• Pressure Rating: ANSI Class 250 (ASME B16.15)

Applications

• Designed for regulating fluid flow in commercial building heating, ventilation, and air conditioning systems.
• Suitable for controlling hot water, chilled water, and glycol solutions up to 50% concentration.
• Ideal for low-pressure steam applications up to 38 psig.
• Well-suited for integration with building automation and automated climate control systems requiring precise environmental adjustments.