Johnson Controls VG7243ET+7152G Valve Assembly

The Johnson Controls VG7243ET+7152G is a high-performance 2-way globe valve assembly designed for precise modulating control of hot water, chilled water, and 100 psig saturated steam. This 1/2-inch NPT valve features a 1.8 Cv flow coefficient with an equal percentage flow characteristic, ensuring stable heat transfer in demanding HVACR applications. Built with a heavy-duty cast bronze body and stainless steel trim, this assembly is engineered to withstand higher fluid temperatures up to 338°F, making it a reliable choice for technical facility management. The unit is powered by a VA-7152-1001 actuator, a non-spring return proportional motor that operates on 24Vac. It utilizes a 0-10Vdc control signal for accurate positioning, delivering a minimum of 90 lb force to maintain tight shutoff against 239 psig close-off pressure. The magnetic clutch technology protects the gear train from stall conditions and maintains constant output force without the need for complex linkages. Key Benefits

• Corrosion Resistance: High-grade stainless steel trim and stem extend service life in steam and glycol-rich environments.
• Precision Modulation: The 1.8 Cv equal percentage flow design provides superior control loop stability at low flow rates.
• Streamlined Installation: Direct-coupled non-spring return actuator eliminates the need for separate mounting kits or stroke adjustments.
• High Temperature Rating: Integrated extended bonnet allows for continuous operation in saturated steam systems up to 100 psig.

Can the VA-7152 actuator be field-reversed?
Yes, the actuator features jumper-selectable direct and reverse action, allowing for flexible configuration based on the controller’s output signal.

What is the maximum pressure rating for this assembly?
The valve body meets ASME B16.15 Class 250 requirements, and the assembly is rated for a close-off pressure of 239 psig.

Is this valve suitable for glycol solutions?
Yes, the bronze construction and EPR ring packing are compatible with water and glycol solutions (up to 50%) typically found in hydronic systems.

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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.