In general, screw compressors are designed to handle gas rather than liquid. Here’s why:

1. Liquid Handling

Screw compressors are not typically designed to handle liquid refrigerants directly. Handling liquid refrigerants can cause damage to the compressor due to the liquid’s higher density compared to gas.

2. Risk of Damage

If liquid refrigerant enters a screw compressor, it can lead to liquid slugging, which may damage the internal components and decrease the efficiency of the system.

3. Design Considerations

To prevent liquid from entering the screw compressor, systems are designed with features such as suction accumulators that trap any liquid refrigerant before it reaches the compressor.

4. System Protection

Compressor protection devices are used to safeguard screw compressors from the adverse effects of liquid refrigerant. These devices help in maintaining the system’s efficiency and longevity.

5. Proper Operation

Ensuring the proper operation of the screw compressor involves monitoring the refrigerant state and maintaining appropriate operating conditions to avoid liquid refrigerant from reaching the compressor.

6. Maintenance

Regular maintenance is essential for ensuring that the compressor operates effectively and that any issues related to liquid handling are promptly addressed.