VG1841AG+9A4GGA Johnson Controls Valve / Actuator

Overview

The Johnson Controls VG1841AG+9A4GGA is a 1/2-inch, 3-way mixing or diverting ball valve assembly equipped with a VA9104-GGA-2S non-spring return electric actuator. Designed for control of hot water, chilled water, or up to 50% glycol solutions in HVAC applications, this direct-mount assembly ensures reliable positioning and precise, equal percentage flow control.

Features

• Direct-mount, non-spring return synchronous motor-driven actuator requiring no special tools or linkages for installation.
• Long life expectancy with a minimum rating of 100,000 full stroke cycles.
• Equal percentage flow characteristics provided by a specialized characterized insert.
• Fast and simple wiring via an integrated 48-inch plenum-rated cable.
• Manual override handle allowing easy manual positioning of the valve during system configuration or power loss.

Specifications

• Valve Size: 1/2 inch
• Connection Type: Female NPT (Threaded)
• Flow Capacity: 4.7 Cv
• Configuration: 3-way body pattern
• Materials: Forged brass body, chrome-plated or stainless steel ball, nickel-plated or stainless steel stem, EPDM O-ring stem seals, and graphite reinforced PTFE seats
• Actuator Type: Electric, Non-Spring Return (NSR)
• Running Torque: 35 lb-in (4 N·m)
• Supply Voltage: 24 VAC nominal
• Control Signal: 0-10 VDC / 2-10 VDC / 4-20 mA Proportional Analog Control
• Travel Time: 60 seconds at 60 Hz for 90 degrees of rotation
• Medium Temperature Range: Brass trim: 23°F to 203°F (-5°C to 95°C)
• Maximum Pressure Drop: 50 psid (345 kPa)
• Pressure Rating: 580 psig (3996 kPa), PN40
• Leakage Rating: ANSI Class IV (0.01% of Cv)

Applications

• Specifically designed for use in automated commercial Heating, Ventilating, and Air Conditioning (HVAC) systems.
• Ideal for regulating flow in hydronic systems utilizing hot water, chilled water, or less than 50% glycol mixtures.
• Frequently deployed in air conditioning terminal units, heat exchangers, variable air volume (VAV) reheat coils, and small air handling units where precise proportional water loop control is necessary.