VG7842RT+3008EP Johnson Controls Valve / Actuator

Overview

The Johnson Controls VG7842RT+3008EP is a factory-assembled pneumatic valve and actuator combination designed to regulate the flow of hot water, chilled water, or steam in commercial heating, ventilating, and air conditioning (HVAC) systems. It features a 1-1/2 inch three-way mixing globe valve with a linear flow characteristic and a cast bronze body. The assembly includes a V-3000 exposed pneumatic actuator equipped with a factory-mounted V-9502 positioner and a 9 to 13 psi nominal spring range.

Features

• Three-way mixing configuration with a linear flow characteristic for accurate fluid mixing control.
• Cast bronze body with durable brass trim and an elastomer disc seat for reliable performance.
• Exposed V-3000 series pneumatic actuator providing dependable spring-return operation.
• Factory-mounted V-9502 pneumatic positioner for precise valve stem positioning.
• Standard Johnson Controls ring pack packings offering industry-leading reliability and long operating life.

Specifications

• Valve Size: 1-1/2 inch
• Connection Type: Female NPT threaded
• Flow Capacity: 28.9 Cv
• Body Material: Cast bronze
• Trim Material: Brass
• Piping Configuration: 3-way mixing
• Spring Range: 9 to 13 psig
• Maximum Supply Air Pressure: 25 psig
• Pressure Rating: ANSI Class 250 (up to 400 psi for water depending on temperature)
• Fluid Temperature Range: 35 to 248 degrees Fahrenheit for water; maximum 15 psig saturated steam

Applications

• Designed for regulating the flow of hot water, chilled water, and up to 50% glycol solutions in commercial HVAC systems.
• Suitable for low-pressure steam applications up to 15 psig saturated steam.
• Regularly applied in building automation systems requiring precise pneumatic control for hydronic heating and cooling loops.