Johnson Controls VG7241NT+3008B Valve Assembly

The Johnson Controls VG7241NT+3008B is a professional-grade 1-inch 2-way globe valve assembly designed for precise modulation in HVAC pneumatic control systems. This Normally Open (N.O.) assembly features a high-capacity 11.6 Cv rating, making it ideal for regulating hot water, chilled water, or 35 psig saturated steam. The unit is built with a rugged cast bronze body and brass trim, ensuring reliable performance in demanding commercial environments. It comes integrated with a V-3000 pneumatic actuator featuring an exposed yoke and a 3-6 psi spring range for responsive spring return failsafe operation. This assembly utilizes an equal percentage flow characteristic to provide stable control even at low flow rates, preventing hunting in your hydronic loops. The 1-inch NPT threaded connection allows for straightforward installation into existing iron pipe headers. Field-serviceable with a standard Johnson Controls ring pack packing, this valve is engineered for longevity and ease of maintenance in high-duty cycle applications.

• Enhanced Flow Control: The 11.6 Cv equal percentage flow characteristic ensures linear heat output from coils, improving overall HVAC system efficiency.
• Durable Construction: High-quality cast bronze body and brass internals provide superior resistance to scaling and corrosion in non-potable water systems.
• Reliable Failsafe: The normally open spring return configuration ensures the valve remains open during a loss of terminal air pressure to prevent freezing or stagnation.
• Steam Compatible: Rated for saturated steam up to 35 psig, offering versatility for both hydronic and steam heating applications.
• Easy Maintenance: Standardized bonnet design allows for in-line packing replacement and simple actuator removal without draining the entire system.

What is the maximum close-off pressure for this assembly?
The VG7241NT+3008B provides a close-off pressure of approximately 90 psig when driven by the integrated 3-6 psi spring range actuator, depending on the available control signal pressure.

Can this valve be used for steam applications?
Yes, this Johnson Controls valve is rated for saturated steam up to 35 psig when used with the standard brass trim and EPR packing.

Is the actuator action reversible?
This specific model is factory-configured as Normally Open (Push-Down-to-Close); however, the V-3000 series actuators are designed for easy field mounting and can be replaced or serviced without removing the valve body from the line.

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.