Johnson Controls VG7243ET+3008B Valve Assembly

The Johnson Controls VG7243ET+3008B is a professional-grade 1/2 inch NPT mixing valve assembly designed for precise pneumatic flow control in HVAC systems. This 2-way normally open valve features a robust cast bronze body paired with high-grade stainless steel trim, ensuring long-term durability in demanding hydronic applications. With a 1.8 Cv rating and an equal percentage flow characteristic, this assembly provides stable modulation of hot or cold water. The integrated 3008B pneumatic actuator utilizes a reliable 3-6 PSI spring range for fail-safe spring return operation, ensuring the valve defaults to the open position upon loss of signal. This bronze globe valve is engineered for seamless integration into existing Johnson Controls pneumatic control loops, offering technicians a reliable solution for maintaining exact discharge temperatures and system pressure balance. Its compact footprint and NPT threading simplify installation for field contractors managing diverse commercial mechanical loads.

• Corrosion Resistance: The cast bronze body ensures structural integrity while the stainless steel trim prevents premature wear from fluid turbulence.
• Fail-Safe Operation: The 3-6 PSI spring return mechanism guarantees the valve returns to its normally open state during pneumatic signal failure.
• Precise Modulation: Equal percentage flow profiles allow for accurate control at both low and high flow rates.
• High Temperature Tolerances: Designed to withstand standard hydronic temperature fluctuations without compromising the pneumatic diaphragm.

Frequently Asked Questions

What is the maximum fluid temperature for the VG7243ET series?
These assemblies are typically rated for saturated steam up to 15 psig or water temperatures ranging from 35°F to 281°F, depending on the specific packing used.

Can this valve be field-converted to normally closed?
This specific assembly is configured as 2-way normally open. Converting action would require a different actuator configuration or a reversing relay within the control loop.

Is the 3008B actuator suitable for outdoor installation?
This is an exposed pneumatic actuator designed for indoor mechanical room environments; protection is required if installed in areas with direct moisture exposure.

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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.