V47AA-3C Johnson Controls MODULATING Valve

Overview

The Johnson Controls V47AA-3C is a temperature-actuated modulating water regulating valve designed to control the flow of water or glycol to maintain a desired temperature. The valve features a quick-opening characteristic and opens on a temperature increase at the sensing bulb. It employs a pressure-balanced design that isolates the range spring from fluid passages to protect against sedimentation and corrosion.

Features

• Pressure-balanced design ensures the setpoint is independent of water inlet pressure.
• Eliminates close-fitting or sliding parts in water passages to prevent valve sticking and minimize hysteresis.
• Designed to minimize chatter and water hammer during operation.
• Easy to disassemble for convenient in-line repairs and parts replacement.

Specifications

• Pipe Size: 3/8 inch NPT
• Temperature Range: 75 to 135 degrees F (Cross Ambient opening point)
• Bulb Size: 11/16 inch diameter by 6 inches length
• Capillary Length: 6 feet
• Standard Bypass Orifice: 0.062 inch diameter
• Maximum Water Temperature: 170 degrees F
• Maximum Supply Water Pressure: 150 psig

Applications

• Regulates the flow of water or glycol in commercial refrigeration and HVAC systems.
• Ideal for space heating and environmental temperature control applications requiring direct-acting modulation.