The oil lubricated compressor is mainly used to adjust the start and stop state of the air compressor. By adjusting the pressure in the gas storage tank, the air compressor is stopped and rested, and the machine has a maintenance effect. When the air compressor factory is commissioned, according to The customer needs to adjust to the specified pressure, and then set a pressure difference. For example, the compressor starts to start, pumping gas to the gas tank, when the pressure is 10kg, the air compressor is shut down or unloaded, when the pressure reaches 7kg, the air compressor is again Start the start, there is a pressure difference between this, this process can let the compressor take a break to protect the air compressor.