VG7243ET+72CHGA Johnson Controls Valve / Actuator

Overview

The Johnson Controls VG7243ET+72CHGA is a premium 2-way, normally open globe valve assembly designed for high-performance regulation of hot water, chilled water, and steam in demanding commercial HVAC configurations. It incorporates a spring return actuator to ensure a fail-safe open position during power loss, protecting critical coils from freezing or overheating.

Features

• 90 lb force provides tight close-off without requiring linkages
• Magnetic clutch protects gearing and ensures tight close-off
• Long life replaceable ring packing provides high reliability and prevents leaks
• Integrated spring-return mechanism returns the valve to a normally open state upon signal or power failure
• Field-selectable control signals via internal jumpers or switches allow for seamless HVAC actuator replacement

Specifications

• Valve Size: 1/2 inch
• Connection Type: NPT
• Flow Capacity: 1.8 Cv
• Flow Characteristic: Equal Percentage
• Body Configuration: Two-Way Normally Open Globe Valve
• Body Material: Cast Bronze Body with Stainless Steel Trim
• Voltage: 24 VAC, 50/60 Hz
• Control Signals: 0(2)-10 VDC, 0(4)-20 mA, two-position, or floating (Field Selectable)
• Pressure Rating: ANSI Class 250
• Maximum Operating Temperature: 35 to 338°F (2 to 170°C)
• Maximum Steam Pressure: 100 psig Saturated Steam at 338°F (170°C)

Applications

• Commercial HVAC systems
• Heat exchangers and air handling units
• Hot water, chilled water, and 50/50 glycol solutions regulation
• Saturated steam applications up to 38 psig or up to 100 psig in high-pressure steam environments