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VG7842ET+72CHGC
The VG7842ET+72CHGC from Johnson Controls is a 3-way mixing control valve geared towards precise fluid management. Capable of controlling a variety of flow patterns, this valve operates with a robust actuator and offers efficient performance across a wide range of conditions.
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Technical specifications for VG7842ET+72CHGC
| Manufacturer | Johnson Controls |
|---|---|
| Product Type | 3-way mixing control valve |
| Product Line | VG7000 Series |
| Part Number | VG7842ET+72CHGC |
| End Connections | NPT Threaded |
| Actuator Force Output | 180 lb |
| Valve Size | 1/2 inches |
| Body Material | Cast Bronze |
| Trim | Brass |
| Actuator Type | VA7820-HGC-2 Electric Actuator (Spring-Return, Stem Up) |
| Control Type | Proportional, 0 to 10 Volts DC (field-selectable as On/Off or Floating) |
| Voltage Rating | 24 VAC |
| Input Voltage Frequency | 50/60 Hz |
| Auxiliary Switches | 2 switches |
| Operating Temperature Range | 2°C to 65°C |
| Max. Fluid Temperature | 140°C Water Temperature; 38 psig Saturated Steam Pressure |
| Max. Closeoff Pressure | 345 psig (2,377 kPa), Port A |
| Leakage | 0.01% of Max. Flow (ANSI/FCI 70-2, Class 4) |
The VG7842ET+72CHGC model is part of the VG7000 Series by Johnson Controls and serves as a highly functional 3-way mixing control valve. It includes NPT threaded connections for ease of installation and a valve size of 1/2 inches makes it suitable for compact applications. Constructed from cast bronze, this valve provides enhanced resistance to corrosion and wear, while the internal brass trim assures efficient fluid flow.
This valve operates using a VA7820-HGC-2 electric actuator that boasts a spring-return feature, allowing the stem to return to its original position when de-energized. The actuator's force output is rated at 180 lbs, ensuring reliable performance across various operational settings. Field selection further enhances its versatility, allowing for control in either proportional mode or as an On/Off operation using a 0 to 10 volts DC control signal.
Designed for varying environments, the VG7842ET+72CHGC can operate at temperatures ranging from 2°C to 65°C. It can handle fluid temperatures up to 140°C, making it apt for high-temperature applications. When dealing with saturated steam, the maximum pressure that can be tolerated is 38 psig, while the closeoff pressure reaches up to 345 psig (2,377 kPa) for Port A.
For reliability, this valve ensures minimal leakage at just 0.01% of the maximum flow according to the ANSI/FCI 70-2 Class 4 standard. With two auxiliary switches provided, users can integrate the valve into complex control systems seamlessly. Overall, the VG7842ET+72CHGC is engineered for precision and functionality in fluid handling applications.
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