Johnson Controls VG7243ET+71CHGC 1/2" NPT Two-Way Globe Valve Assembly with VA7810-HGC-2 NSR Proportional Actuator

The Johnson Controls VG7243ET+71CHGC is a factory-assembled two-way globe valve and electric actuator combination designed for precise flow control in commercial HVAC systems. This assembly pairs the VG7243ET stainless steel trim globe valve body with the VA7810-HGC-2 non-spring-return (NSR) proportional electric actuator, delivering reliable modulating control of hot water, chilled water, or steam.

The VG7243ET valve body features a 1/2" NPT end connection, a 1.8 Cv flow coefficient, and a push-down-to-close (PDTC) two-way configuration. The bronze valve body with stainless steel stem and seat provides excellent corrosion resistance and long service life. The equal-percentage flow characteristic ensures accurate, stable control across the full range of operation.

The VA7810-HGC-2 actuator operates on 24 VAC and accepts a 0–10 VDC proportional control signal, making it compatible with a wide range of building automation and DDC controllers. The non-spring-return design holds the valve in its last position upon power loss. Two integrated SPDT auxiliary switches (2 Sw) provide end-of-travel feedback for status monitoring or interlock control.

Key Features:

• 1/2" NPT end connections with 1.8 Cv flow coefficient
• Two-way, push-down-to-close (PDTC) configuration
• Bronze valve body with stainless steel trim (stem and seat)
• 24 VAC, 0–10 VDC proportional control (field-selectable On/Off or Floating)
• Non-spring-return (NSR) actuator — holds last position on power loss
• Two integrated SPDT auxiliary switches for end-of-travel feedback
• Brushless motor for low energy consumption and extended service life
• Force-controlled motor shut-off protects valve from excessive closing forces
• Automatic stroke adjustment for fast, precise commissioning
• Manual override for commissioning and servicing without power
• Stroke position indicator for visual valve status
• Status LED for actuator diagnostics
• UL Listed and CE compliant
• Maximum recommended pressure drop: 35 psid (water) for 1/2" valve
• Media temperature range: 35°F to 248°F (water); up to 338°F (steam, actuator-dependent)

The VG7243ET+71CHGC is an ideal drop-in assembly for new HVAC installations or field retrofits requiring accurate, energy-efficient flow modulation in hydronic heating, cooling, or steam distribution systems.