VG7441ET+3008E Johnson Controls Pneumatic Globe Valve and Actuator Assembly

Overview

The Johnson Controls VG7441CS+3801E is a high-quality, factory-assembled pneumatic globe valve and actuator assembly designed to regulate the flow of hot water, chilled water, or steam in commercial and industrial HVAC systems. This 1/2-inch, two-way, normally-closed control valve features a durable cast bronze body with brass trim and utilizes a push-down-to-open configuration. Equipped with a compact V-3801 pneumatic actuator, it is engineered for precise modulation and fits easily into restricted or confined mounting spaces.

Features

• Compact Design: Features a small oval top actuator ideal for tight installation spaces such as baseboard radiators and convectors.
• Rugged Enclosure: Built with a sturdy die-cast aluminum housing protecting the internal actuator mechanisms and an enclosed spring.
• Durable Construction: Made from corrosion-resistant cast bronze with a standard brass trim for long-lasting performance stability.
• Constant Effective Area: Molded synthetic rubber diaphragm design provides a uniform effective area throughout the entire actuator stroke.
• Industry-Leading Reliability: Incorporates standard Johnson Controls ring pack packings and is factory tested to ensure tight shutoff.

Specifications

• Valve Size: 1/2 inch
• Connection Type: Female NPT (Threaded)
• Valve Configuration: 2-Way Normally Closed (Push-Down-to-Open)
• Flow Coefficient (Cv): 0.73
• Spring Range: 9 to 13 psi (psig)
• Effective Diaphragm Area: 4 sq. in.
• Close-off Pressure: 158 psig
• Maximum Control Pressure: 30 psig
• Body Rating: 250 psi
• Fluid Limits: 125 psi WOG, 15 psi WSP (saturated steam)
• Air Connection: 1/8 in. NPT barbed fitting for 5/32 in. O.D. polytubing
• Operating Temperature Limits: -20°F to 150°F (-29°C to 66°C)

Applications

• Commercial and residential HVAC environmental control systems.
• Regulation of hot water, chilled water, and glycol solutions in air handlers, radiators, and fan coil units.
• Low-pressure steam system management up to 15 psig.
• Water systems requiring automated, high-precision proportional flow control.