What is function of unloader valve?

An unloader valve is a crucial component in air compressors, designed to relieve pressure in the compressor's pump when it is not in operation. It prevents the compressor from restarting under load by venting excess pressure, which allows the motor to start more easily. This function helps to protect the compressor from damage and improve its efficiency during operation. Additionally, it aids in reducing wear and tear on the system by ensuring smoother operation.