Emerson Alco 049188 Solenoid Valve

The Emerson Alco 049188 Solenoid Valve (model 200RB5T4M) is a heavy-duty, pilot-operated, 2-way normally closed solenoid valve designed for reliable refrigerant flow control in commercial refrigeration and HVAC systems. As a sweat ODF solenoid valve with half-inch extended copper ends, it allows for efficient brazing without disassembly, protecting internal components from heat damage. This pilot operated refrigeration valve features a 5/16" internal port and is equipped with a manual stem, providing technicians with a manual lift option for system evacuation or emergency override.

Engineered for high-performance thermal management, the 200RB5T4M supports a nominal R22 capacity of 8.2 tons and an R134a capacity of 6.2 tons at standard ARI conditions. The valve body utilizes a durable PTFE O-ring to ensure superior external sealing against leaks and is compatible with a single coil family, simplifying truck stock for contractors. Its robust construction supports a Maximum Working Pressure (MWP) of 500 psig and a Maximum Operating Pressure Differential (MOPD) of 300 psig, making it suitable for liquid, suction, or discharge gas service.

• Manual Stem Integration: Built-in manual lift stem allows for manual opening during service, troubleshooting, or power failures.
• Extended Solder Ends: 1/2" ODF sweat connections facilitate easier installation by keeping torch heat away from the valve body.
• Versatile Application: Validated for use in liquid line, suction line, and discharge gas service across multiple refrigerants.
• Simplified Maintenance: Uses the standard Emerson coil family and features field-serviceable internal parts.
• Leak Prevention: High-grade PTFE synthetic seating and O-rings provide a reliable seal across a wide temperature range up to 250°F.

Can this valve be converted to bi-flow operation?
Yes, the 200RB series can be converted to bi-directional flow using the KS30293 internal parts kit, though it is unidirectional in its standard 049188 configuration.

Does this valve body include the electrical coil?
No, this is a Valve Less Coil (VLC) body. You must select a compatible Emerson solenoid coil (typically the ASC2 or AMG series) based on your system's voltage requirements.

What is the purpose of the manual stem on the 200RB5T4M?
The manual stem allows a technician to manually bypass the solenoid function to open the valve for system evacuation or to maintain flow if the coil fails during a critical cooling period.

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.