Emerson Alco 049186 Solenoid Valve

The Emerson Alco 049186 (Model 200RB4T3M) is a robust pilot-operated refrigeration solenoid valve engineered for precision fluid control in high-demand HVACR systems. This 2-way normally closed valve features 3/8" ODF sweat connections with copper extended ends, allowing for efficient installation without the risk of internal component damage during brazing. Designed for versatility, the 200RB4T3M is compatible with R22 (8.0-ton capacity) and R134a (6.0-ton capacity), making it a reliable choice for liquid, suction, or discharge gas service. The integrated manual stem provides contractors with essential manual override capabilities for system troubleshooting or emergency bypass. With a PTFE O-ring for superior external sealing and a maximum working pressure of 500 PSIG, this solenoid valve body ensures long-term performance in diverse thermal environments up to 250°F. Professionals value the 200RB series for its single coil family compatibility, simplifying inventory by allowing one coil size to fit all valve port variations.

• Manual Override: The manual stem allows for direct mechanical operation during commissioning or service intervals.
• Thermal Protection: Extended copper ends permit fast brazing while protecting the internal PTFE seals from heat damage.
• Multi-Refrigerant Compatibility: High nominal capacities for R22, R134a, and common A1/A2L class refrigerants.
• Serviceability: A pilot-operated design that utilizes a single coil family across the series for streamlined maintenance.
• Durable Sealing: Equipped with a PTFE O-ring to provide a secure external seal against leakages in high-pressure cycles.

Does this valve include the solenoid coil?
No, this is a VLC (Valve Less Coil) body. You must select the appropriate coil voltage and type separately to complete the assembly.

Can the 200RB4T3M be used for bi-flow applications?
While the standard 200RB4T3M is a uni-directional valve, it can be converted for bi-flow operation using a specific internal component kit, such as the KS30293.

What is the maximum pressure rating for this solenoid valve?
The unit is rated for a Maximum Working Pressure (MWP) of 500 PSIG and a Maximum Operating Pressure Differential (MOPD) of 300 PSIG.

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.