VG7241ET+3008B Johnson Controls Valve / Actuator

Overview

The Johnson Controls VG7241ET+3008B is a pneumatic valve and actuator assembly engineered to regulate fluid flow in heating, ventilation, and air conditioning systems. This assembly integrates a 1/2-inch, two-way normally open globe valve with an exposed pneumatic actuator to deliver stable and efficient control of water or steam, ensuring optimal climate regulation in commercial environments.

Features

• Normally open, push-down-to-close design ensures a fail-safe open position upon loss of air pressure
• Cast bronze body with high-grade brass trim delivers excellent durability and corrosion resistance
• Exposed pneumatic actuator provides responsive operation utilizing a 3 to 6 psi spring range
• Built and tested to withstand over one million cycles for long-term field reliability
• Designed for serviceability with in-place valve repacking capabilities to lower maintenance costs

Specifications

• Valve Size: 1/2 Inch
• Connection Type: Threaded NPT
• Flow Capacity: 1.8 Cv
• Body Pattern: Two-Way
• Actuator Type: Pneumatic
• Nominal Spring Range: 3 to 6 psig
• Pressure Rating: ANSI Class 250 (up to 400 psi)
• Maximum Close-off Pressure: 365 psi
• Fluid Temperature Range: 35 to 284 degrees Fahrenheit
• Flow Characteristic: Equal Percentage
• Medium Compatibility: Hot water, chilled water, steam, and glycol solutions up to 50 percent

Applications

This assembly is primarily deployed in commercial and industrial HVAC systems to control the flow of hot water, chilled water, steam, or glycol mixtures. It is frequently applied in air handling units, perimeter heating equipment, fan coil systems, and reheat coils where precise modulation and reliable shutoff are required.