V47AB-5C Johnson Controls MODULATING Valve

Overview

The Johnson Controls V47AB-5C is a temperature-actuated modulating water regulating valve designed to control the flow of water or glycol to maintain a desired temperature in heating or cooling systems. This direct-acting, 2-way valve features a cross-ambient sensing bulb and opens on a temperature increase at the bulb, providing smooth modulation and high efficiency for commercial or industrial applications.

Features

• No close-fitting sliding parts in water passages, preventing fouling and sticking from sediment.
• The range spring does not come into contact with the cooling water, eliminating spring corrosion.
• Features a pressure-balanced design with synthetic rubber sealing diaphragms to handle sudden water pressure changes.
• Withstands high hydraulic shock without damage.
• Provides an easy manual flushing mechanism without altering the valve temperature adjustment.
• Designed to minimize chatter and water hammer.

Specifications

• Connection Size: 1/2 inch NPT Threaded
• Temperature Range: 75°F to 135°F (24°C to 57°C)
• Maximum Bulb Temperature: 155°F (68°C)
• Sensing Bulb Size: 11/16 inch x 10 inches
• Capillary Length: 6 feet (armored)
• Maximum Flow Capacity: 27 gpm
• Body Material: Cast Brass / Copper Alloy (not for use with drinking water)
• Valve Action: Opens on temperature increase

Applications

• Heat Exchangers: Optimizes and maintains operating temperatures of internal combustion engines and air compressors.
• Hydraulic Systems: Regulates water flow to hold stable hydraulic oil temperatures.
• Industrial Printing Equipment: Governs coolant temperature to manage paint viscosity.
• Condenser Applications: Used where expensive fluids are economically recovered or where cooling water usage is restricted.
• Swimming Pools: Controls pool heating systems by adjusting water circulation.