Emerson Alco 066172 Solenoid Valve

The Emerson Alco 066172 is a professional-grade 200RD7T5 solenoid valve engineered for high-capacity flow control in demanding refrigeration and air conditioning systems. This pilot operated refrigeration solenoid valve is a 2-way, normally closed solenoid valve designed to handle the high-pressure requirements of modern refrigerants, specifically optimized for R410A refrigeration systems with a nominal capacity of 15.7 tons. Featuring a 5/8" ODF sweat connection with extended copper ends, this valve allows for efficient brazing without the risk of internal component damage, ensuring a leak-proof seal in the field.

Built with a rugged 200RD series solenoid valve body, this unit is versatile enough for liquid line, suction line, or discharge gas service. Technicians will appreciate the PTFE O-ring for superior external sealing and the long-life molded coils that provide excellent protection against moisture and vibration. Note that this is a VLC (Valve Less Coil) model, allowing for customized coil voltage selection to match specific site electrical requirements. For optimal performance, ensure the valve tube is mounted within 90 degrees of the vertical upright position.

• High-Pressure Compatibility: Designed for R410A and R744 (CO2) applications with a maximum working pressure of up to 680 PSIG.
• Contractor-Friendly Installation: Extended 5/8" sweat ODF ends minimize heat transfer to the valve body during the brazing process.
• Reliable Pilot Operation: Provides consistent opening and closing even at low pressure differentials, making it ideal for large-tonnage systems.
• Durable Internal Seals: Equipped with a high-grade PTFE O-ring to prevent external leaks and maintain system vacuum integrity.

Is the coil included with the 066172 valve body?
No, this is a Valve Less Coil (VLC) assembly. You must select and install a compatible Emerson Alco AMG or ASC2 series coil based on your required voltage (e.g., 24V, 120V, or 240V).

Can this valve be used for bi-flow applications?
The standard 200RD7T5 is a uni-directional valve. While some 200RD series valves support bi-flow kits, the 200RD7, 9, and 12 sizes typically do not support standard bi-flow conversion kits; always verify directional legends on the valve body.

What is the maximum fluid temperature rating?
This valve is rated for a maximum fluid temperature of 250°F, making it suitable for hot gas discharge service in most commercial HVACR setups.

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.