The EVRA15 Solenoid Valve is a normally closed (NC) electric valve designed to control the flow of refrigerant in cooling systems. When the solenoid coil is energized, a magnetic field is created to lift the piston, allowing refrigerant to flow. Once the power supply is cut, the piston immediately returns to its closed position, stopping the flow. This automatic operation enables precise and reliable refrigerant control within the system.
Key Features of the DANFOSS EVRA15 Solenoid Valve
Rugged and Durable Construction
The EVRA15 valve is built for heavy-duty industrial use. It is made from high-grade brass or cast steel (depending on the model), providing excellent resistance to high pressure, extreme temperatures, and refrigerant corrosion. This durability makes it ideal for both commercial and industrial refrigeration systems.
Superior Sealing Performance
The valve incorporates a precision-engineered sealing system that effectively prevents refrigerant leakage. This helps minimize refrigerant loss, ensures consistent cooling performance, and improves system energy efficiency.
Flexible Coil Compatibility
The EVRA15 supports a wide range of Danfoss solenoid coils with various voltage options (24V, 220V, 380V – both AC and DC). This flexibility allows it to integrate easily with different electrical control systems.
Wide Refrigerant Compatibility
The valve is compatible with multiple refrigerant types, including HFCs, HCFCs, and even CO₂ (R744) in certain models, making it suitable for modern, environmentally friendly refrigeration applications.
Easy Installation and Maintenance
Despite being designed for medium-to-large systems, the EVRA15 features a compact, service-friendly design. Its internal components are easily accessible, allowing quick disassembly, maintenance, and part replacement to minimize downtime.
Advantages and Applications
Accurate Refrigerant Flow Control
The EVRA15 ensures precise control of refrigerant delivery to evaporators or other sections of the cooling system, maintaining consistent temperature and humidity levels throughout the operation.
Enhanced Efficiency and System Longevity
By optimizing refrigerant flow, the valve helps the compressor operate efficiently with less strain, reducing wear and tear while extending the service life of critical components.
Compressor Protection
In case of abnormal conditions—such as low temperature or improper refrigerant flow—the solenoid valve can immediately shut off refrigerant passage, preventing liquid slugging (liquid refrigerant returning to the compressor), which is a common cause of compressor failure.
Improved Safety and Reliability
The EVRA15 enables remote and automated operation through electrical control systems, enhancing safety by reducing the need for manual valve access in potentially hazardous areas.
Energy and Cost Savings
Its efficient flow control ensures the refrigeration system maintains the desired temperature with minimal energy use, reducing operating costs while improving overall performance stability.
