Johnson Controls VG7243ET+72CHGA Valve Assembly

The Johnson Controls VG7243ET+72CHGA is a premium 2-way, normally open globe valve assembly designed for high-performance regulation of hot water, chilled water, and steam in demanding commercial HVAC configurations. Built with a 1/2-inch NPT connection and a 1.8 Cv equal percentage flow characteristic, this assembly ensures precise modulating control and linear response in heat exchanger and air handling unit applications. The rugged cast bronze body is paired with stainless steel trim to provide superior resistance to corrosion and scaling, significantly extending service life in high-pressure steam environments up to 100 psi.

This assembly features a field-selectable actuator capable of handling 0(2)-10 VDC, 0(4)-20 mA, two-position, or floating control signals, offering maximum flexibility for integration with modern Building Automation Systems (BAS). As the official VG7243ET+926AGA direct replacement, the VG7243ET+72CHGA incorporates a spring return actuator to ensure a fail-safe open position during power loss, protecting critical coils from freezing or overheating. Designed for the VG7000 Series, this valve meets ASME B16.15 Class 250 standards, providing a tight close-off in high-head pressure systems.

Key Benefits

• Optimized Flow Control: 1.8 Cv equal percentage plug provides stable modulation and prevents hunting in variable load systems.
• Durable Construction: High-grade stainless steel valve trim and spring-loaded PTFE packing reduce maintenance requirements and prevent leaks.
• Universal Compatibility: Field-selectable control signals allow for seamless HVAC actuator replacement and simplified inventory management.
• Fail-Safe Security: Integrated spring-return mechanism returns the valve to a normally open state upon signal or power failure.
• Steam Rated: Robust internal components are rated for saturated steam applications, ensuring reliable performance in diverse mechanical rooms.

Common Questions

Is the VG7243ET+72CHGA compatible with existing Johnson Controls systems?
Yes, this model is the updated Johnson Controls VG7243ET replacement for the legacy 926AGA series, utilizing the same footprint for easy field installation without repiping.

Can I change the control signal after installation?
Technicians can easily configure the signal type (proportional 0-10V or floating) via internal jumpers or switches, making it highly adaptable for varied 24Vac valve assembly requirements.

How does this valve handle high-pressure differentials?
The assembly is engineered with a high-torque spring-return actuator to maintain a positive close-off against the rated differential pressures of the VG7000 globe valve series.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.