VG7241ET Johnson Controls Valve

Overview

The Johnson Controls VG7241ET is a 2-way, normally open (N.O.) globe valve designed for precise flow control of hot water, chilled water, or steam in commercial HVAC hydronic systems. Constructed with a durable cast bronze body and brass trim, it utilizes a push-down-to-close stem action to regulate flow accurately and safely, ensuring long-lasting corrosion resistance and reliable performance in air handling units, fan coil units, and other terminal equipment.

Features

• Two-way, normally open configuration provides a fail-safe position that allows continuous flow upon loss of actuator power.
• Equal percentage flow characteristic ensures stable and precise modulating control even at low flow rates.
• Standard threaded stem design permits wide compatibility with Johnson Controls electric (VA, VB, VE series) and pneumatic actuators.
• High-quality cast bronze body coupled with brass trim offers excellent durability and corrosion protection.
• Employs standard Johnson Controls U-cup or rubber EPR packing, allowing for convenient in-place valve repacking and serviceability.
• Every individual valve is factory-tested to guarantee tight shutoff and prevent system leakage.

Specifications

• Connection Size: 1/2 inch
• Connection Type: NPT (National Pipe Thread) end connections
• Flow Coefficient (Cv): 1.8
• Valve Type: Globe, 2-way straight
• Action: Push-down-to-close (PDTC)
• Material of Construction: Cast bronze body, stainless steel stem, brass plug/seat
• Static Pressure Rating: ANSI Class 250 (up to 400 psi for water at lower temperatures)
• Fluid Temperature Range: 35°F to 284°F (2°C to 140°C) for water; maximum 38 psig for saturated steam
• Leakage Rating: ANSI Class IV (0.01% of maximum flow)
• Rangeability: 25:1 in compliance with EN 60534-2-4

Applications

• Designed for regulating the flow of hot water, chilled water, and glycol solutions (up to 50%) within commercial building automation systems.
• Well-suited for low-pressure saturated steam service up to 38 psig.
• Ideal for modulating control in terminal HVAC equipment, including fan coil units, air handling units, zone reheating coils, and induction units.