Johnson Controls VG7243NT+822C01 Valve
The Johnson Controls VG7243NT+822C01 is a robust 1-inch NPT pneumatic globe valve assembly engineered for precise control of water or steam in commercial HVAC systems. This 2-way normally open valve features a high-grade cast bronze body paired with stainless steel trim, ensuring superior durability and resistance to scaling in demanding hydronic loops. With an 11.6 Cv rating and equal percentage flow characteristics, this assembly provides stable modulation and tight shut-off even under fluctuating pressure conditions. The integrated spring return pneumatic actuator operates on a 3-7 PSI spring range and includes a positioner for enhanced accuracy in complex building automation sequences. Designed for seamless Honeywell or Johnson Controls retrofits, this unit minimizes installation time while maximizing thermal energy efficiency. Contractors rely on the VG7000 series for its field-proven reliability in chilled water and hot water applications requiring rigorous flow control.
Key Benefits- Industrial-Grade Construction: The stainless steel stem and plug prevent premature wear and corrosion in aggressive fluid environments.
- Precision Flow Control: The equal percentage characteristic ensures predictable temperature regulation across varying load demands.
- Simplified Commissioning: Included pneumatic positioner allows for exact calibration and faster response times in critical control loops.
- Reliable Fail-Safe: The pneumatic spring return mechanism ensures the valve defaults to the open position during a loss of control air.
What is the maximum operating temperature for this bronze body valve?
This valve is typically rated for saturated steam up to 38 psig or hot water up to 281°F, making it suitable for standard commercial boiler and chiller applications.
Can the actuator positioner be adjusted in the field?
Yes, the 822C01 actuator positioner allows for field calibration to ensure the stroke matches your controller's output signal precisely.
How does the equal percentage flow benefit my HVAC system?
It compensates for the non-linear heat transfer characteristics of coils, providing a linear change in heat output relative to the valve stroke for more stable comfort levels.
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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.
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