VG1245AD Johnson Controls Ball Valve

Overview

The Johnson Controls VG1245AD is a precision-engineered, two-way forged brass ball valve designed to regulate the flow of hot water, chilled water, and low-pressure steam in commercial HVAC systems. Part of the VG1000 Series, this 1/2-inch NPT valve features a maintenance-free design with a 300 series stainless steel ball and stem assembly, delivering exceptional durability and advanced corrosion resistance. It is engineered for seamless integration with Johnson Controls spring return or non-spring return electric actuators to provide precise, automated environmental control.

Features

• High-durability 300 Series stainless steel ball and stem assembly enables use in demanding applications.
• Double EPDM O-ring stem seals offer reliable, leak-free operation tested up to 200,000 cycles.
• Graphite-reinforced PTFE seats incorporate 15% graphite for superior wear resistance in contaminated water systems.
• Maintenance-free architecture eliminates the need for field packing adjustments or rebuilding.
• Impressive 500:1 rangeability allows for exceptionally precise control under all fluid load conditions.
• Amodel flow characterization disk provides a consistent equal percentage flow characteristic and reduces the need for pipe reducers.

Specifications

• Pipe Size: 1/2 inch (DN15)
• Connection Type: Threaded FNPT (National Pipe Thread)
• Body Material: Forged Brass
• Trim Material: 300 Series Stainless Steel Ball and Stem
• Flow Coefficient (Cv): 1.2
• Close-off Pressure Rating: 200 psi (1378 kPa)
• Static Pressure Rating: 580 psig (3996 kPa), PN40
• Fluid Temperature Range: -22 to 284°F (-30 to 140°C)
• Maximum Steam Pressure: 15 psig saturated steam
• Media Compatibility: Chilled or hot water, up to 50% glycol solutions, and low-pressure steam
• Compatible Actuators: VA9104, M9109 (with M9000-520 linkage), VA9203, and VA9208 series electric actuators

Applications

The VG1245AD is ideal for use in commercial heating, ventilating, and air conditioning (HVAC) applications requiring precise fluid control. It is frequently applied in fan coil units, air handling units, VAV reheat coils, and hydronic heating or cooling circuits. Thanks to its equal percentage flow characteristics, it functions optimally in building automation and energy management systems where stable, energy-efficient temperature modulation is required.