VG7842ET+3008D Johnson Controls Valve / Actuator

Overview

The Johnson Controls VG7842ET+3008D is a high-quality valve and actuator assembly designed to regulate the flow of water and steam in commercial HVAC systems. This assembly combines a 1/2-inch 3-way mixing globe valve with a spring-return exposed pneumatic actuator, providing precise linear flow control in response to the demands of a system controller. Built with a durable cast bronze body and brass trim, it offers industry-leading reliability and a long operating life.

Features

• High-quality cast bronze body construction with durable brass trim.
• Equipped with a spring-return exposed pneumatic actuator for reliable failsafe operation.
• Utilizes standard Johnson Controls ring pack packings for excellent sealing and extended service life.
• Every valve assembly is factory tested for tight shutoff to support energy conservation and comfort.
• Standard bonnet and stem design allows for straightforward field retrofits and mounting.

Specifications

• Valve Size: 1/2 inch
• Connection Type: NPT threaded
• Body Pattern: 3-way mixing
• Flow Capacity: 1.8 Cv
• Flow Characteristic: Linear response
• Actuator Type: Pneumatic
• Nominal Spring Range: 4 to 8 psig
• Close-Off Pressure: 339 / 142 psig
• Fluid Temperature Range: 35 to 284 degrees Fahrenheit
• Maximum Pressure Drop: 35 psid for water, 35 psid for steam

Applications

• Designed primarily for regulating hot water, chilled water, and steam flow in commercial HVAC systems.
• Suitable for integration with building automation and pneumatic control systems requiring precise environmental modulation.
• Ideal for water loops with up to 50% glycol solutions.