Emerson Alco 047521 Solenoid Valve

The Emerson Alco 047521 Solenoid Valve (model 200RB5F4T) is a heavy-duty, 2-way normally closed refrigeration valve engineered for precision liquid, discharge, or suction gas service. As a pilot-operated solenoid valve, it utilizes a 1/2 inch flare (SAE) connection and features an integrated mounting stud for secure installation in high-vibration environments. This refrigerant flow control body is rated for a nominal R22 capacity of 8.2 tons and an R134a capacity of 6.2 tons, making it a versatile choice for mid-sized commercial systems.

Designed for maximum reliability, the Emerson 200RB series utilizes a PTFE O-ring for superior external sealing and a long-life molded coil interface (sold separately). With a maximum working pressure of 680 psig and a maximum fluid temperature of 250°F, this HVAC solenoid valve maintains a low 2 psi minimum pressure drop to ensure system efficiency. The 047521 valve body is compatible with a wide range of refrigerants including R-407C, R-404A, and R-410A when properly sized with the 200RB5F4T technical specifications.

• Interchangeable Coil System: One coil family fits the entire 200RB series, simplifying truck stock and field replacements.
• Field Serviceable: The normally closed design allows for easy maintenance with available Emerson solenoid repair kits without removing the entire valve body from the line.
• Enhanced Sealing: Features a high-grade PTFE O-ring that prevents external leaks even under extreme temperature cycling.
• Robust Mounting: The inclusion of a mounting stud (T-suffix) provides added stability in industrial refrigeration racks.

Which coil is compatible with the 047521?
This is a Valve Less Coil (VLC) body. It is compatible with the Emerson AMG, ASC2, and OMV coil series. Verify your system voltage (e.g., 24V, 120V, or 240V) before selecting a coil.

Can this valve be used for bi-flow applications?
The standard 200RB5F4T is uni-directional. For heat pump or bi-flow applications, a conversion kit (KS30387) is required unless using a factory-assembled bi-flow model.

What is the maximum operating pressure differential (MOPD)?
The Emerson 200RB typically offers an MOPD of 300 psig for AC applications, ensuring the valve opens reliably even against high head pressure.

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.