V46AD-13C Johnson Controls Water Regulating Valve

Overview

The Johnson Controls V46AD-13C is a 1-inch, pressure-actuated, modulating water-regulating valve designed for commercial refrigeration and HVAC systems. It controls the quantity of water or glycol flow to a water-cooled condenser by directly sensing pressure changes in a refrigerant circuit. As a direct-acting valve, it opens on a pressure increase to help maintain optimum refrigerant head pressure. It features a rugged cast iron body with a rust-resisting finish and a pressure-balanced design that keeps the setpoint consistent against sudden water pressure variations.

Features

• Pressure-balanced design ensures the opening point setpoint remains independent of water inlet pressure fluctuations.
• No close-fitting or sliding parts in water passages to prevent stuck valves, chatter, or water hammer caused by contamination.
• Take-apart construction allows the valve to be disassembled and serviced inline without removing it from the piping system.
• Accessible range spring permits easy manual flushing of the valve if required.
• Robust bellows design withstands high hydraulic shock and high overpressure without damage.
• Corrosion-resistant internal components, including an aluminum bronze seat and brass disc holder, ensure a long service life.

Specifications

• Connection Size: 1 inch
• Connection Type: Female NPT (FPT) threaded inlet and outlet
• Pressure Connection: 1/4 inch Male Flare fitting (Style 5)
• Opening Point Range: 70 to 260 psi (psig)
• Maximum Water Supply Pressure: 150 psig
• Maximum Permissible Refrigerant Pressure: 320 psig
• Maximum Water Temperature: 170 degrees Fahrenheit (77 degrees Celsius)
• Body Material: Cast iron with a rust-resisting finish
• Valve Trim Material: Brass and aluminum bronze with a Buna-N disc
• Compatible Refrigerants: Standard non-corrosive refrigerants (such as R12, R22, R134a, R404a, R502, R507); not for use with R410A

Applications

• Regulating the flow of cooling water or glycol to water-cooled condensers in commercial refrigeration systems.
• Maintaining stable refrigerant head pressures in ice machines and commercial ice cream makers.
• Controlling environmental cooling water flow in computer room air conditioning (CRAC) units.
• Managing condenser water loops in commercial refrigeration display cases and walk-in coolers.