Johnson Controls V46DA-2 Valve

The Johnson Controls V46DA-2 is a commercial-grade, direct-acting pressure actuated water regulating valve designed specifically for systems utilizing non-corrosive refrigerants. Built with a rugged cast brass body, this low flow water valve features a 3/8" NPT connection and is engineered to maintain constant head pressure by modulating the flow of water through a condenser. It operates within a precise opening point range of 70 to 260 PSI, making it a versatile solution for varying head pressure requirements. This model includes a 30-inch capillary with a Style 45 1/4" flare nut pressure element for reliable sensing. Field technicians should note that the V46DA-2 is functionally identical to the V46DA-2C, ensuring direct compatibility for replacements. When performing a V46DA-2 installation, ensure the sensing line is properly secured to the high-side service port to allow the modulating water valve to respond accurately to refrigerant pressure fluctuations, preventing high-head cycles and optimizing compressor efficiency.

• Precision Pressure Control: Adjusts condenser water flow effectively across a broad 70 to 260 PSI range.
• Durable Construction: High-quality cast brass body ensures longevity in demanding commercial HVACR environments.
• Standard Connectivity: Equipped with a 3/8" NPT inlet/outlet and a Style 45 pressure element for straightforward integration.
• Optimized Efficiency: Maintains stable head pressure, reducing energy consumption and mechanical wear on the compressor.
• Compact Footprint: Designed for low-flow applications where space and precise modulation are critical.

Is the V46DA-2 compatible with ammonia systems?
No, this valve is designed strictly for use with non-corrosive refrigerants. For ammonia applications, a stainless steel or specific alloy valve must be utilized.

What is the difference between the V46DA-2 and the V46DA-2C?
These two part numbers refer to the same technical specification and are 100% interchangeable in the field.

Does this valve require an external power source?
No, this is a direct acting pressure-actuated valve that operates mechanically based on the refrigerant pressure sensed through the capillary tube.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.