VG7842GT+3008D Johnson Controls Valve / Actuator

Overview

The Johnson Controls VG7842GT+3008D is a 1/2-inch, 3-way pneumatic mixing globe valve assembly designed for precise fluid control in commercial HVAC systems. Part of the VG7000 Series, this assembly features a durable cast bronze body with brass trim and includes a V-3000 exposed pneumatic actuator with a 4 to 8 psi spring range to provide reliable, linear flow response.

Features

• High-quality cast bronze body with corrosion-resistant brass trim
• V-3000 pneumatic valve actuator with a compact die-cast enclosure and an effective diaphragm area of 8 square inches
• Spring-return fail-safe functionality ensuring reliable positioning under loss of pneumatic pressure
• Long life with over one million cycles tested and standard in-place valve repacking capability

Specifications

• Pipe Size: 1/2 inch (0.5″) NPT threaded connection
• Flow Capacity: 4.6 Cv
• Body Pattern: 3-Way Mixing with linear flow characteristics
• Actuator Type: Pneumatic with 4 to 8 psig spring range
• Maximum Static Pressure: 400 psi
• Fluid Temperature Range: 35°F to 248°F (2°C to 120°C)

Applications

• Designed for control of hot water, chilled water, and glycol solutions (up to 50%) in HVAC systems
• Suitable for low-pressure steam applications up to 15 psig saturated steam
• Ideal for integration into pneumatic building automation systems requiring stable and proportional fluid mixing