V47AB-24C Johnson Controls MODULATING Valve

Overview

The Johnson Controls V47AB-24C is a temperature-actuated modulating water regulating valve designed for precise, self-contained flow control in hydronic systems without requiring an external power source. It operates via a direct-acting mechanism, opening proportionally on a temperature increase at the sensing bulb to regulate fluid flow, stabilize system setpoints, and optimize operating temperatures.

Features

• Self-contained, temperature-actuated operation requires no external power source.
• Proportional modulating control provides smooth fluid flow regulation.
• Pressure-balanced design balances the valve against sudden water pressure changes and high hydraulic shock.
• Range spring and sliding parts are isolated from water passages to eliminate sedimentation and corrosion.
• Heavy-duty design minimizes chatter and water hammer.
• Supports easy manual flushing if required.

Specifications

• Temperature Range: 75°F to 135°F (24°C to 57°C)
• Maximum Bulb Temperature: 155°F (68°C)
• Maximum Supply Water Pressure: 150 psig (1,034 kPa)
• Capillary Length: 2 feet
• Bulb Dimensions: 11/16 inch diameter by 3-1/4 inch length
• Temperature Bulb Style: Style 4 (closed tank immersion, 1/2 inch NPT)
• Mounting Bracket: None

Applications

• Regulates jacket water temperature in internal combustion engines and air compressors.
• Optimizes operating temperatures for hydraulic oil and heat exchangers.
• Controls water temperature within coil circuits for fan coil units and unit heaters.
• Manages cooling water flow in commercial and light industrial refrigeration condensers, cooling towers, and water temperature regulation circuits.