Johnson Controls VG7842GT Valve

Johnson Controls VG7842GT Valve

Johnson Controls

  • $161.15


The Johnson Controls VG7842GT is a professional-grade 1/2 inch NPT 3-way mixing valve specifically engineered for high-demand HVAC applications. Part of the proven VG7000 Series Bronze Control Valves, this unit features a 4.6 Cv linear flow characteristic, ensuring precise modulation of hot water, chilled water, or 50/50 glycol solutions. Constructed with a cast bronze body and brass trim, it is rated for ANSI Class 250 service, making it a reliable choice for regulating flow in response to pneumatic or electric controllers. The standard threaded stem allows for seamless field or factory mounting of VA-7000, VA-4233, or V-3000 series actuators. Designed to handle saturated steam up to 38 psig and fluid temperatures ranging from 35?F to 284?F, this valve provides the durability required for baseboard radiators, convectors, and air handling units. Its compact profile is ideal for tight mechanical spaces where consistent mixing valve performance is critical for system balance.

Key Benefit List:
  • High-Precision Flow: Features a linear flow characteristic for accurate mixing and temperature control.
  • Rugged Construction: Built with a cast bronze body and brass trim to withstand ANSI Class 250 pressure ratings.
  • Versatile Media Handling: Compatible with hot water, chilled water, and saturated steam HVAC systems.
  • Actuator Compatibility: Standard threaded stem supports a wide range of electric and pneumatic actuators.
  • Extended Temperature Range: Operates efficiently between 35?F and 284?F for broad application flexibility.
Common Questions:

What is the maximum pressure rating for the VG7842GT?
This valve is rated for ANSI Class 250, supporting static pressures up to 400 psi at lower temperatures and 15-38 psig for saturated steam depending on the specific trim and configuration.

Can this valve be used for diverting applications?
The VG7842GT is specifically designed as a 3-way mixing valve (two inlets, one outlet). For diverting applications (one inlet, two outlets), a different VG7000 series model should be selected to ensure proper flow dynamics.

Is the actuator included with this part number?
No, VG7842GT typically refers to the valve body only. It is designed to be paired with VA-7000 series electric or V-3000 series pneumatic actuators based on your control requirements.

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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