VG7443NT+72CHGA Johnson Controls Valve / Actuator

Overview

The Johnson Controls VG7443NT+72CHGA is a factory-assembled globe valve and electric actuator combination designed primarily to regulate the flow of hot water, chilled water, or steam in heating, ventilating, and air conditioning (HVAC) systems. This 1-inch, 2-way control valve assembly utilizes a spring-return electric actuator to provide high-performance, cost-effective control. It features a cast bronze body with durable stainless steel trim, engineered for tight shutoff and long-lasting operational life.

Features

• High-quality cast bronze body designed to meet ASME B16.15 Class 250 pressure and temperature requirements.
• Long-lasting stainless steel trim offering high durability and compatibility with up to 100 psig of saturated steam.
• Equipped with standard Johnson Controls ring pack packings to provide industry-leading reliability and long operating life.
• Factory-assembled with a VA7820 series spring-return electric actuator, providing a torque rating of 180 lb-f.
• Support for field-selectable input signals including proportional 0-10 VDC, on/off, or floating point control.
• Designed for tight shutoff to support energy conservation and occupant comfort, with each valve individually tested.

Specifications

• Valve Size: 1 inch (DN25)
• Valve Configuration: 2-way, normally closed (Push-Down-to-Open)
• Flow Coefficient: 11.6 Cv
• Flow Characteristic: Equal Percentage
• End Connections: Female NPT
• Stem Type: Standard threaded stem
• Close-Off Pressure: 131 psig (or up to 182 psi depending on application parameters)
• Power Supply: 24 VAC, 50/60 Hz
• Fluid Temperature Limits: Water: 35 to 338°F (2 to 170°C); Saturated Steam: Up to 100 psig at 338°F (170°C)
• Actuator Failsafe Position: Normally open / stem up upon loss of power
• Enclosure Rating: NEMA 2

Applications

The VG7443NT+72CHGA is ideal for use in commercial, industrial, and institutional HVAC applications where precise fluid control is required. It is commonly applied in air handling units, fan coil units, terminal reheat coils, unit ventilators, and heat exchangers to regulate hot water, chilled water, up to a 50% glycol solution, or low-to-medium pressure steam.