What is an EVR Solenoid Valve?

In industrial refrigeration and air conditioning systems, precise control of refrigerant flow is crucial. EVR solenoid valves play an indispensable role in this. So, what exactly is an EVR solenoid valve?

Definition and Working Principle of EVR Solenoid Valves

An EVR solenoid valve is a direct-acting or servo-operated solenoid valve specifically designed for refrigerant piping to control refrigerant flow in the system.

• Structural Composition: It mainly consists of a solenoid coil, valve body, and seals.
  
  
• Working Principle: When the solenoid coil is energized, the generated magnetic field drives the valve core to move, thereby opening the valve and allowing refrigerant to flow. When the coil is de-energized, the valve core returns to its original position under the action of a spring, closing the valve and stopping the flow of refrigerant. This switching action achieves rapid and automatic control of the refrigerant flow direction.
  

Key Features and Advantages of EVR Solenoid Valves

High-quality EVR solenoid valves possess several key features that make them a preferred component in refrigeration systems. These advantages are primarily reflected in the following aspects:

• High Reliability: EVR solenoid valves are designed for long-term, high-frequency on/off operations, boasting an extremely long service life and representing high reliability among refrigeration system components.
  
  
• Wide Applicability: They are compatible with various common Freon refrigerants, such as R22, R404A, R507, R410A, and R134a, meeting diverse refrigerant flow control needs.
  
  
• Rapid Response: As an automatic control valve, the EVR solenoid valve can complete opening or closing actions in a very short time, ensuring a sensitive response from the entire refrigeration system.
  
  
• Excellent Sealing (Zero Leakage): Utilizing advanced sealing technology, EVR solenoid valves achieve zero leakage in the closed state, effectively preventing refrigerant loss and significantly improving the system efficiency of industrial refrigeration valves.
  
  
• Flexible Installation: The product design offers multiple connection methods, such as welding or threaded connections, facilitating quick and easy integration into different piping systems.
  
  

Applications of EVR Solenoid Valves

Due to their stable and reliable performance, EVR solenoid valves are widely used in various fields requiring precise refrigerant control:

• Central Air Conditioning Systems: Precisely control the distribution of refrigerant in different evaporators or pipelines.
  
  
• Industrial Refrigeration Equipment: Such as cold storage facilities and ice makers, used to regulate the refrigerant supply and ensure stable operating temperatures.
  
  
• Heat Pump Systems: Control the flow of refrigerant when switching between heating and cooling modes.
  
  

Through effective refrigerant management, EVR solenoid valves not only improve the operating efficiency of refrigeration equipment but also provide reliable guarantees for system safety and stability. A thorough understanding of the characteristics and functions of EVR solenoid valves is crucial when selecting and maintaining related equipment.