Air Pressure Regulator for compressor compressed air 1/2 FREE GAUGE

Regulator is equipped with an adjustable turn knob. Simply lift the knob to adjust the pressure, then press down to lock into place to set your desired pressure. A pressure regulator's primary function is to match the flow of gas through the regulator to the demand for gas placed upon the system. If the load flow decreases, then the regulator flow must decrease also. If the load flow increases, then the regulator flow must increase in order to keep the controlled pressure from decreasing due to a shortage of gas in the pressure system