Emerson Alco 049692 Solenoid Valve

The Emerson Alco 049692 (200RB3T4) is a pilot-operated, 2-way normally closed solenoid valve engineered for high-performance refrigeration and air conditioning service. This 1/2" ODF sweat connection valve body features a pilot-operated disc construction, which ensures reliable opening even under low pressure differential conditions. Designed for versatility across multiple refrigerants, it provides a 4.8 ton R22 capacity and a 3.6 ton R134a capacity. The 200RB series is known for its rugged durability, utilizing a short-stroke solenoid design that minimizes impact and extends the life of the internal components. For field technicians, the extended copper connections allow for easy brazing without the risk of damaging the internal valve seals. This valve is a standard solution for liquid line service and suction line applications where positive shut-off and high flow rates are required to maintain system efficiency.

Key Benefits

• Multi-Refrigerant Compatibility: Rated for use with R-22, R-134a, R-404A, R-407C, and R-410A systems, providing flexibility for various field retrofits.
• Pilot-Operated Efficiency: Ensures consistent valve actuation and high flow rates with minimal pressure drop across the solenoid valve body.
• Extended Sweat Ends: Simplifies the installation process by allowing for torch brazing without requiring a full valve teardown to protect the internal gaskets.
• High MOPD: Designed to handle high Maximum Operating Pressure Differentials, preventing valve "hang-ups" during hot gas defrost or high-load cycles.

Common Questions

What is the flow capacity for R410A systems?
The Emerson 200RB3T4 is rated for approximately 4.5 tons when used in R410A liquid line applications, though actual capacity depends on specific liquid and evaporator temperatures.

Does this valve include the solenoid coil?
No, the 049692 is the solenoid valve body only. You must match it with the appropriate AMG or ASC2 series coil depending on your voltage requirements (24V, 120V, or 240V).

Can this valve be mounted in any orientation?
For optimal performance and to prevent debris buildup in the pilot orifice, it is recommended to mount the valve with the solenoid coil in a vertical, upright position.

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.