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VG2231TM+92NBGA
The VG2231TM+92NBGA from Johnson Controls is an electrically-actuated 2-way globe valve designed for efficient fluid management. It performs under a range of conditions, offering reliability in various temperature settings and pressure ratings.
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Technical specifications for VG2231TM+92NBGA
| Manufacturer | Johnson Controls |
|---|---|
| Product Type | 2-way globe valve, electrically-actuated |
| Product Line | VG2000 Series |
| Part Number | VG2231TM+92NBGA |
| Valve Body Rating | ASME B16.1, Class 125 |
| Valve Size | 2-1/2 inches |
| Operating Temperature Range | 2°C to 138°C (fluid) |
| Maximum Allowable Pressure (Water) | 175 psig at 66°C, 125 psig at 138°C |
| Maximum Allowable Pressure (Steam) | 35 psig (241 kPa) of saturated steam at 138°C |
| Voltage Rating | 24 VAC/VDC |
| Control Type | On/Off, spring return type (normally open with valve stem up) |
| Closeoff Pressure | 76 psig |
| Flow Characteristic | Modified linear |
| Body Material | Cast iron |
| Stem Material | 316 stainless steel |
| Packing Material | EPT (Ethylene Propylene Terpolymer) ring packs |
The Johnson Controls VG2231TM+92NBGA is classified as a 2-way globe valve, employing electrical actuation for fluid control applications. Weighing in at 51.2 lbs, this valve construction adheres to the ASME B16.1 Class 125 specifications, ensuring robustness and reliability. It features a valve size of 2-1/2 inches and is suitable for varied operating temperature conditions, from a minimum of 2°C to a maximum of 138°C for the fluid being managed.
When handling water, the valve can tolerate maximum pressures of 175 psig at 66°C and 125 psig at 138°C. For steam applications, it accepts a pressure of 35 psig (241 kPa) at the upper temperature limit of 138°C. Power supply requirements for this model are rated at 24 VAC or VDC, making it versatile for different systems.
The VG2231TM+92NBGA utilizes an On/Off control type, characterized by a spring return mechanism, which keeps the valve normally open with the stem positioned upwards. In terms of closeoff pressure, it handles up to 76 psig. The flow characteristic is classified as modified linear, providing controlled and predictable flow rates.
Material choices are critical for performance: the valve body is crafted from durable cast iron, while the stem is made of 316 stainless steel, ensuring resistance to corrosion and wear. The packing system employs Ethylene Propylene Terpolymer (EPT) ring packs for effective sealing and longevity in service.
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