Johnson Controls VG7842NT Valve

The Johnson Controls VG7842NT is a professional-grade 1-inch NPT 3-way mixing globe valve designed for precision fluid control in demanding HVACR applications. As a core component of the VG7000 Series, this valve features a cast bronze body and brass trim, ensuring high durability when regulating hot water, chilled water, or 50/50 glycol solutions. With an 11.6 Cv rating and a linear flow characteristic, it provides stable modulation for internal building climate systems. Engineered for versatile integration, the VG7842NT valve utilizes a standard threaded stem compatible with both electric and pneumatic actuators, such as the VA7800 or M9100 series. It meets ANSI Class 250 pressure standards, handling fluid temperatures from 35°F to 284°F and saturated steam up to 38 psig. For technicians, the valve’s field-serviceable design allows for in-place repacking, reducing downtime during routine maintenance on mixing loops or air handling units.

• Precise Mixing Control: The 3-way mixing configuration leverages a linear flow profile for consistent temperature regulation in hydronic systems.
• High Temperature Resilience: Built to withstand saturated steam applications up to 38 psig and fluid temperatures reaching 284°F.
• Rugged Construction: Features a corrosion-resistant bronze body and brass internal trim for long-term reliability in commercial piping.
• Actuator Compatibility: Designed with a threaded stem that interfaces seamlessly with Johnson Controls actuators, facilitating easy factory or field mounting.
• Industry Compliance: Rated for ANSI Class 250 static pressure, making it suitable for high-rise boilers and cooling plant environments.

What is the maximum pressure rating for the VG7842NT?
This valve body is rated for ANSI Class 250, supporting a maximum allowable pressure of 400 psi at standard temperatures and 38 psig for saturated steam service.

Can I use this valve for diverting applications?
The VG7842NT is specifically ported for mixing applications. For diverting service, you should select a VG7000 Series valve specifically designed for that flow pattern to avoid noise and premature seat wear.

Which actuators fit the 1-inch VG7842NT?
It is compatible with VA7800 series electric actuators and V-3000 pneumatic actuators. Always verify the required close-off pressure against the actuator's force output before installation.

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.