Johnson Controls VG7243GT+71CHGA Two-Way Globe Valve Assembly 1/2" NPT 4.6 Cv 24V Proportional NSR

The Johnson Controls VG7243GT+71CHGA is a pre-assembled actuated globe valve from the VG7000 Series, combining a 1/2" NPT two-way bronze body globe valve with a 24V proportional, non-spring return (NSR) electric actuator. This factory-matched valve and actuator assembly is designed for accurate, modulating flow control of water and steam in commercial HVAC systems.

The VG7243GT valve body features a push-down-to-close (PDTC) configuration with stainless steel trim and a flow coefficient (Cv) of 4.6, making it well-suited for terminal unit and zone control applications. The bronze body construction provides corrosion resistance and long service life, while the spring-loaded PTFE and elastomer V-ring packing ensures a reliable, low-leak seal.

The paired 71CHGA actuator provides proportional (0–10 VDC) non-spring return control at 24VAC, allowing precise valve positioning in response to a building automation system (BAS) or HVAC controller signal. As a non-spring return (NSR) design, the valve holds its last position on power loss.

Key Features:

• Valve series: VG7000 Series Bronze Globe Valve
• Connection size: 1/2" NPT (female)
• Body pattern: Two-way (2W), straight-through
• Flow coefficient: Cv 4.6
• Valve action: Push-Down-to-Close (PDTC)
• Valve body material: Bronze with stainless steel trim
• Packing: Spring-loaded PTFE and elastomer V-rings
• Maximum allowable pressure: 400 PSI
• ANSI leakage rating: Class IV
• Actuator voltage: 24VAC
• Actuator control type: Proportional (0–10 VDC)
• Actuator return type: Non-Spring Return (NSR)
• Compatible fluids: Hot water, chilled water, 50/50 glycol solutions, and saturated steam (HVAC service)
• Factory-assembled valve and actuator combination for simplified installation

The VG7243GT+71CHGA is an ideal choice for Building Automation Systems (BAS), variable air volume (VAV) terminal units, fan coil units, and other HVAC hydronic applications requiring precise proportional flow control.