Emerson Alco 049187 Solenoid Valve

The Emerson Alco 049187 Solenoid Valve (Model 200RB4T4M) is a heavy-duty, pilot-operated refrigeration solenoid valve designed for high-performance liquid, discharge, or suction gas service. As a normally closed 2-way valve, it features a 1/2" ODF sweat connection with extended copper ends, allowing for simplified brazing without the risk of internal component damage. This model is equipped with a manual opening stem, offering technicians critical override capabilities for system testing or emergency manual operation. Engineered for versatility, the 200RB4T4M provides a robust R22 capacity of 8.0 tons and an R134a capacity of 6.0 tons at standard conditions, making it a staple for mid-sized commercial refrigeration and HVAC systems. The 1/4" port size ensures efficient flow dynamics with a maximum working pressure of 500 PSIG and a 300 PSIG MOPD. Compatible with AM, ASC2, and DM coils, this 1/2 ODF solenoid valve is a field-serviceable solution for professionals demanding reliability in diverse refrigerant environments.

• Enhanced Serviceability: The manual stem allows for manual opening during system evacuation, maintenance, or coil failure troubleshooting.
• Efficient Installation: Extended sweat connections eliminate the need for disassembly before brazing, saving time in the field.
• Broad Refrigerant Compatibility: Optimized for use with R22, R134a, and other common A1, A2L, and A3 class refrigerants.
• Durable Sealing: Features a high-grade PTFE O-ring for superior external sealing and long-term leak prevention.
• System Versatility: Suitable for liquid line, suction line, and discharge gas service applications.

Is the coil included with this valve body?
No, the 200RB4T4M is a VLC (Valve Less Coil) model. It requires a compatible Emerson AM, ASC2, or DM solenoid coil, which must be purchased separately based on your specific voltage requirements.

Can this valve be used for bi-flow operation?
The standard 049187 is a directional valve. However, it can be converted for bi-directional flow using the KS-30293 conversion kit, making it suitable for heat pump applications.

What is the maximum operating pressure for this unit?
This valve is rated for a maximum operating pressure drop (MOPD) of 300 PSIG and a total maximum working pressure of 500 PSIG, ensuring stability in high-pressure refrigeration circuits.

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.