Johnson Controls VG7841CS Valve

The Johnson Controls VG7841CS Valve is a high-performance 3-way mixing globe valve designed for precise flow control in commercial HVAC systems. Featuring a heavy-duty cast bronze body and durable brass trim, this 1/2 inch NPT valve body is engineered to handle hot water, chilled water, and steam applications with a maximum static pressure rating of 400 PSI. The 0.73 Cv rating, combined with an equal percentage flow characteristic, ensures linear heat output and stable temperature regulation even during fluctuating load conditions. Built for long-term reliability in demanding environments, the slotted stem design allows for direct coupling with VG7000 Series actuators without the need for complex linkages. Whether you are servicing fan coil units, terminal reheat coils, or hydronic zones, the VG7841CS provides a tight close-off and versatile temperature range of 35?F to 248?F, making it a standard choice for technicians focusing on system efficiency and mechanical integrity.

• Precise Modulation: The equal percentage flow curve provides superior control at low flow rates, preventing hunting in sensitive HVAC loops.
• Industrial-Grade Build: Cast bronze body construction with brass trim offers excellent corrosion resistance and high-pressure durability up to ANSI Class 250.
• Fast Installation: Standard 1/2 inch NPT threaded connections and a slotted stem facilitate quick field assembly or replacement with existing pneumatic or electric actuators.
• High Temperature Versatility: Capable of managing media from 35?F to 248?F, covering most boiler and chiller water loop requirements.

Is the VG7841CS compatible with both pneumatic and electric actuators?
Yes, as part of the VG7000 Series, this valve body is designed to interface with various Johnson Controls actuators, provided the force requirements and mounting configurations match the small bonnet and slotted stem design.

Can I use this valve for diverting service instead of mixing?
The VG7841CS is specifically engineered as a 3-way mixing valve. While it is optimized for mixing two inlet flows into one outlet, verify your piping configuration, as using a mixing valve in a diverting application can lead to premature seat wear or noise issues.

What is the maximum pressure this valve can withstand?
The valve is rated for a maximum static pressure of 400 PSI and meets ANSI Class 250 standards, making it suitable for high-rise hydronic systems and steam applications.

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.