VG1841AE Johnson Controls Ball Valve

Overview

The Johnson Controls VG1841AE is a high-performance 1/2-inch 3-way forged brass ball valve engineered to regulate the flow of hot or chilled water in commercial HVAC systems. This model features a 1.9 Cv rating and is shipped without an actuator, allowing for flexible field or factory mating with a variety of compatible direct-coupled electric actuators. Incorporating a specialized internal characterizing disk, it ensures precise temperature control and stable operation across all load conditions.

Features

• Advanced characterizing disk maintains equal percentage flow characteristics for stable environmental control.
• Robust forged brass body provides a high static pressure rating and long-term durability.
• High close-off pressure rating of 200 psi delivers tight shutoff to prevent unintended energy transfer.
• Maintenance-free design provides a life expectancy exceeding 200,000 leak-free cycles.
• Graphite-reinforced PTFE seats and EPDM double O-ring seals provide exceptional wear resistance.

Specifications

• Valve Size: 1/2 inch FNPT
• Pattern: 3-way mixing or diverting
• Flow Coefficient: 1.9 Cv (In-line Port A), 1.2 Cv (Bypass Port B)
• Static Pressure Rating: 580 psig (PN40)
• Maximum Close-off Pressure: 200 psid
• Maximum Operating Pressure Drop: 50 psid
• Fluid Temperature Range: 23°F to 203°F (-5°C to 95°C)
• Rangeability: Greater than 500:1
• Materials: Forged brass body, chrome-plated brass ball, nickel-plated brass stem, graphite-reinforced PTFE seats, EPDM O-rings
• Actuator Compatibility: Factory or field mounting with VA9104, M9106, M9109, VA9203, and VA9208 series actuators

Applications

• Control of hot or chilled water flow in commercial heating, ventilating, and air conditioning (HVAC) installations.
• Hydronic systems utilizing water or water-glycol mixtures containing less than 50% glycol.
• Individual zone control applications such as fan coils, chilled beams, and air handling unit coils.
• Note: This brass-trimmed model is designed exclusively for water services and is not rated for steam applications.