VG7241ES+3801D Johnson Controls Valve / Actuator

Overview

The Johnson Controls VG7241ES+3801D is a 1/2-inch, 2-way normally open cast bronze globe valve assembly equipped with a V-3801 compact pneumatic actuator. Part of the VG7000 Series, this assembly is designed to accurately regulate the flow of hot water, chilled water, or low-pressure saturated steam in response to the demand of a controller in heating, ventilating, and air conditioning (HVAC) systems.

Features

• Compact footprint allowing installation in tight spaces such as baseboard radiators and convectors
• Rugged die-cast actuator enclosure with an enclosed spring for enhanced durability and protection
• Failsafe spring return operation that ensures the valve returns to a fully open position upon loss of air pressure
• Serviceable construction featuring in-place valve repacking for extended operational life

Specifications

• Valve Size: 1/2 inch
• Connection Type: Female NPT
• Flow Coefficient: 1.8 Cv
• Effective Diaphragm Area: 4 sq. in.
• Spring Range: 4 to 8 psig
• Closeoff Pressure: 84 psig
• Body Material: Cast bronze
• Trim Material: Brass
• Flow Characteristic: Two-way equal percentage
• Maximum Pressure Rating: ANSI Class 250 (400 psi up to 150 degrees Fahrenheit)
• Media Temperature Range: Water: 35 to 248 degrees Fahrenheit; Saturated Steam: up to 15 psig at 284 degrees Fahrenheit

Applications

• Commercial HVAC systems for hot water and chilled water control
• Low-pressure saturated steam applications up to 15 psig
• Terminal unit zone control, including perimeter convectors, baseboard radiators, and fan coil units