The air valves of the compressor are all automatic valves, which move only based on the pressure difference on both sides of the valve plate.

Whether a reciprocating compressor can operate more reasonably, efficiently, and economically largely depends on the structure and performance of the air valve. Therefore, the air valve is also known as the "heart of the compressor". Meanwhile, due to the high working intensity and harsh environment of the air valve, it is also the most easily damaged part among the three vulnerable components of the compressor. Statistics show that parking caused by damaged air valves accounts for over 40% of unplanned parking.

Characteristics that a "good valve" should possess

• Long service life and good reliability
• Large flow area and low pressure loss
• Timely opening and closing of valve plates