The compressor regulators & valves are typically found on the outgoing air line. Same air line runs from the tank, may run through some gauges or else other accessories, but then typically runs into and through the air regulator and then on to discharge coupling. The release coupling is the device on the airline from the compressor into which you plug the connector on your air hose. The compressor air regulator and valves is sometimes not visible. Compressor’s regulators & Valves are designed to allow you to dial down the air pressure that goes to your air hose and your air tool. The general purpose or using regulators and valves is to lower the air pressure to the lowest regulator setting at which the air tool will run appropriately. This reduces air use, reduces energy cost, as well as reduces wear and tear on the air tool. The regulators & valves are designed to lower the pressure setting that downstream hose and tool receives, and maintain that lo
