Johnson Controls VG7243ST+823C00 2-Inch Globe Valve with Pneumatic Actuator Assembly Stainless Steel Trim

The Johnson Controls VG7243ST+823C00 is a factory-assembled valve and actuator combination designed for precision control of hot water, chilled water, or steam in commercial HVAC systems. This complete assembly features a VG7243ST 2-inch bronze globe valve with stainless steel trim paired with an MP823C Series pneumatic actuator.

Valve Specifications:

• 2-inch NPT threaded end connections
• Two-way normally open (push-down-to-close) configuration
• 46.2 Cv flow coefficient with equal percentage flow characteristic
• Stainless steel trim provides superior durability and corrosion resistance
• Bronze body construction with ANSI Class 250 static pressure rating
• Fluid temperature range: 35°F to 284°F (2°C to 140°C) for water; up to 100 psig saturated steam
• Maximum recommended pressure drop: 30 psid for water applications

Actuator Features:

• MP823C Series spring-return-up pneumatic actuator with 3/4-inch stroke
• 3 to 7 psig spring range for precise modulating control
• 25 square inch effective diaphragm area
• Maximum supply air pressure: 25 psig (172 kPa)
• Molded EPDM diaphragm in corrosion-resistant housing
• Built-in position indicator for visual stem position feedback
• Factory-mounted with integral yoke and mounting hardware
• Operating temperature: -20°F to 150°F (-29°C to 66°C)

Applications:

• Hot and chilled water distribution systems
• Steam control in commercial heating applications
• Fan coil units and air handling equipment
• Building automation and energy management systems

This assembly is designed for use with pneumatic control signals from building automation controllers. The stainless steel trim provides enhanced durability for high-pressure steam applications up to 100 psid, making it ideal for demanding HVAC environments. The 3-7 psig spring range allows for fail-safe operation, with the valve returning to the normally open position upon loss of air signal.