V47AD-2C Johnson Controls MODULATING Valve

Overview

The Johnson Controls V47AD-2C is a temperature-actuated modulating water regulating valve designed to control the flow of water or glycol to maintain a desired temperature in heating applications. This 1-inch commercial valve features a direct-acting mechanism that automatically opens on a temperature increase at the sensing bulb, providing efficient environmental control without requiring external power.

Features

• Pressure-balanced design isolates the range spring from the fluid path, preventing sedimentation, scale buildup, and corrosion.
• No close-fitting sliding parts in water passages, minimizing hysteresis and reducing the risk of the valve sticking due to water contamination.
• Built-in design features that actively minimize chatter and water hammer in connected piping.
• Supports easy manual flushing to clear out debris and deposits without affecting the valve’s temperature adjustments.
• Designed for simple inline disassembly, allowing all internal parts to be replaced or repaired without removing the valve body from the pipe.

Specifications

• Pipe Size: 1 inch NPT Threaded connection
• Control Action: Opens on temperature increase (Direct Acting)
• Temperature Range: 115 to 180°F (46 to 82°C)
• Maximum Bulb Temperature: 200°F (93°C)
• Maximum Water Temperature: 170°F (77°C)
• Maximum Supply Water Pressure: 150 psig (1,034 kPa)
• Body Material: Durable cast iron
• Sensing Bulb Size: 11/16 inch diameter by 6 inches length
• Flow Coefficient (Kv): 6.5 m³/h
• Bypass Orifice Diameter: 0.093 inches

Applications

• Condenser cooling water loops to regulate heat exchanger temperatures.
• Commercial refrigeration and HVAC heating systems.
• Compressors and hydraulic systems to maintain optimal lubricant and fluid operating temperatures.
• Industrial processing machinery, printing equipment, and swimming pool circulation systems requiring precise water temperature control.