Johnson Controls VG7241CT+71CHGC Globe Valve Assembly 1/2" Two-Way 0.73 Cv with VA7810-HGC-2 Proportional Electric Actuator 0-10 VDC

The Johnson Controls VG7241CT+71CHGC is a factory-coupled two-way globe valve and electric actuator assembly designed for precise proportional flow control in commercial HVAC applications. This assembly pairs the VG7241CT 1/2" VG7000 Series bronze globe valve with the VA7810-HGC-2 non-spring-return electric actuator, delivering reliable modulating control of hot water, chilled water, or low-pressure steam systems.

VG7241CT Globe Valve Specifications:

• Valve body size: 1/2" NPT two-way configuration
• Flow coefficient: Cv = 0.73
• Fail position: Normally Open (N/O) — Push-Down-to-Close
• Body material: Cast bronze with brass seat and stainless steel stem
• Connection type: NPT threaded
• Maximum recommended pressure drop (water): 35 psid (241 kPa) for 1/2" to 1-1/4" valves
• Steam service: up to 15 psid (103 kPa) for brass trim; 100 psid (690 kPa) for stainless trim
• Equal percentage flow characteristic for excellent modulating control

VA7810-HGC-2 Electric Actuator Specifications:

• Control signal: 0–10 VDC proportional
• Supply voltage: 24 VAC
• Return type: Non-Spring Return (NSR)
• Minimum linear output force: 180 lb (800 N)
• Auxiliary switch: Included — 2 SPDT auxiliary switches (1A/3A resistive, 1/4 HP)
• Mounting: Direct mount, factory coupled to valve
• Magnetic clutch for constant output force and motor stall protection
• Field-selectable stroke speed
• Integral cable with colored conductors for simplified field wiring

Key Features:

• Factory-coupled assembly ensures proper alignment and reduces installation time
• Non-spring-return design maintains last position on power loss
• Proportional 0–10 VDC control for accurate, stepless flow modulation
• Integrated auxiliary switches provide end-of-travel feedback or load switching capability
• CE marked; compliant with EMC Directive 2004/108/EC and Low Voltage Directive 2006/95/EC
• Compatible with BAS/DDC controllers outputting a standard 0–10 VDC signal

The VG7241CT+71CHGC is ideally suited for use on air handling units, fan coil units, and other terminal HVAC equipment requiring accurate two-way flow regulation of water or steam. The bronze valve body and stainless steel stem offer long service life in hydronic systems.