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Schneider Electric VB Series VU-8303-686-5-12

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VU-8303-686-5-12

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The VU-8303-686-5-12, a 3-way globe valve assembly from Schneider Electric's VB Series, features a robust cast iron body designed for durability. This valve, with an effective size of 2.5 inches, offers efficient flow control with Cv ratings of 80 for mixing and 95-115 for diverting functions.

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Technical specifications for VU-8303-686-5-12

ManufacturerSchneider Electric
Product Type3-Way Globe Valve Assembly
Product LineVB Series
Part NumberVU-8303-686-5-12
Body MaterialCast Iron
Valve Size2.5 inches
Cv Rating (Mixing/Diverting)80/95-115 Cv
Trim MaterialBrass
Actuator Force337 lbf (1500 N)
Fail-Safe MechanismNon-Spring Return (NSR)
Control SignalFloating or Proportional Signal (0-10 Volts DC, 2-10 Volts DC, or 4-20 mA)
Feedback Signal2-10 VDC
Supply Voltage24 V AC/DC
Enclosure RatingNEMA 2 (With Both Conduits Used and Vertical Mounting)
Humidity Range5 to 95% RH, Non-Condensing
Min. Operating Temperature-10°C (at 138°C Max. Valve Fluid Temp.)
Max. Operating Temperature45°C (at 138°C Max. Valve Fluid Temp.)
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The Schneider Electric part number VU-8303-686-5-12 is a 3-way globe valve assembly designed for versatile applications requiring precise fluid control. Constructed with a cast iron body, this assembly effectively manages various flow requirements. The valve measures 2.5 inches in size, making it suitable for a range of plumbing scenarios.

It features impressive Cv ratings of 80 for mixing and 95-115 for diverting, ensuring optimal performance across different operations. The internal trim is made from brass, enhancing durability and resistance against wear. With an actuator force reaching 337 lbf (1500 N), the valve operates efficiently under a variety of conditions.

The fail-safe mechanism is a non-spring return (NSR) type, which provides reliability during operations. Control signals are flexible, accommodating either floating or proportional inputs, including ranges of 0-10 Volts DC, 2-10 Volts DC, or 4-20 mA. For feedback, a 2-10 VDC signal is utilized.

Power is supplied at 24 V AC/DC, making this valve compatible with various systems, and the NEMA 2 enclosure rating ensures proper protection when mounted vertically and with both conduits connected. This valve operates effectively in humid environments, with a humidity tolerance between 5 and 95% RH (non-condensing). The operational temperature range allows for minimum conditions as low as -10°C, while achieving maximum temperatures up to 45°C, specifically at a maximum valve fluid temperature of 138°C.