Check Valve

check valve is to regulate air flow. With the check valve, the air moves in one direction and is sucked out of the brake booster. In addition, the check valve is also in charge of preventing backflow. The way the check valve itself works is that when the flow is in its direction, the rate of the flow will pass through the disk or plug, while if there is an opposite flow, the plug will be closed, so nothing will happen. backflow into the pipe.