Emerson Alco 049608 Solenoid Valve

The Emerson Alco 049608, specifically the 200RB3T2 solenoid valve, is a pilot-operated, 2-way normally closed refrigeration valve engineered for high-capacity liquid, suction, or discharge service. Featuring 1/4" ODF sweat connections, this valve provides a refrigeration capacity of 4.8 tons for R22 and 3.6 tons for R134a at standard rating conditions. Built with a rugged brass body and stainless steel internal components, it is compatible with HFC, HCFC, and CFC refrigerants, as well as mineral and POE lubricants. The pilot-operated design ensures reliable opening even under high differential pressure environments, making it a standard choice for HVACR system maintenance and commercial refrigeration racks. This valve body accommodates standard solenoid coils for flexible electrical integration. Technical stability and leak-tight seating make the 200RB 3T2 a preferred component for technicians requiring precise mass flow control and refrigerant piping integrity in mid-range tonnage applications.

• High-Flow Pilot Design: Provides consistent opening and closing cycles under varying pressure drops across the valve.
• Multi-Refrigerant Compatibility: Rated for use with R22, R134a, R404A, and R507, allowing for reduced truck stock inventory.
• Extended Sweat Connections: 1/4" ODF copper stubs allow for brazing without complete valve disassembly, protecting internal seals.
• Field-Serviceable Construction: The 200RB series allows for top-entry maintenance to inspect or replace internal pistons and gaskets.

Common HVACR Technical Questions

What is the maximum operating pressure differential for the 200RB3T2?
The 200RB series generally supports a maximum operating pressure differential (MOPD) of 300 psi, though this depends on the specific coil voltage and frequency used in the field application.

Does this valve include the solenoid coil?
No, the 049608 is the valve body only. Technicians must select the appropriate 24V, 120V, or 240V AC coil (typically the AMG or ASC2 series) to complete the installation.

Can this solenoid be installed in any orientation?
It is recommended to install the valve with the coil upright or within 45 degrees of the vertical axis to prevent debris from settling in the pilot orifice and to ensure reliable plunger actuation.

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.