Johnson Controls VG7243ET+71CHGA 1/2" Two-Way Globe Valve with VA7810 Electric Actuator 1.8 Cv

The Johnson Controls VG7243ET+71CHGA is a factory-assembled two-way globe valve and electric actuator combination from the VG7000 Series, designed for accurate flow control of hot water, chilled water, or steam in commercial and industrial HVAC systems. The valve body (VG7243ET) features a 1/2-inch NPT end connection with a 1.8 Cv flow coefficient and stainless steel trim, while the integrated VA7810-HGA-2 actuator (suffix 71CHGA) provides non-spring-return (NSR) electric actuation with selectable proportional or on/off floating control — without auxiliary switches.

Key Features:

• Valve Size: 1/2 inch NPT end connections
• Flow Coefficient: 1.8 Cv
• Valve Action: Push-Down-to-Close (PDTC) — two-way normally open configuration
• Trim Material: Stainless steel stem and seat for superior corrosion resistance
• Valve Body: Bronze body construction
• Actuator: VA7810-HGA-2 non-spring-return electric actuator with selectable proportional (2–10 VDC) or on/off floating control
• Actuator Type: Non-spring-return (NSR) — no failsafe return on power loss
• Auxiliary Switches: None included (W/O SW)
• Fluid Media: Hot water, chilled water, 50/50 glycol solutions, and saturated steam
• Maximum Recommended Pressure Drop (Water): 35 psid (241 kPa) for 1/2" valves
• Fluid Temperature Range: 35°F to 338°F (2°C to 170°C)
• Equal Percentage Flow Characteristic: Two-way configuration provides excellent proportional control response
• Packing: Spring-loaded PTFE and elastomer V-ring for reliable, leak-free sealing
• Complete Actuator Interchangeability: Standardized mounting allows easy field retrofit or actuator replacement

The VG7000 Series globe valve design delivers precise modulating control for HVAC hydronic and steam systems. The stainless steel trim offers enhanced durability over brass trim models, supporting up to 100 psid saturated steam service. The VA7810-HGA-2 electric actuator includes a manual override as standard and features self-calibrating proportional control. This pre-assembled combination is suitable for both new installation and field retrofit applications in commercial building automation systems.