The spring-loaded gas pressure regulator GDJ with inlet pressure compensation diaphragm and zero shut-off serves to maintain the set outlet pressure constant despite changing gas flow rates and inlet pressures in gas pipelines. It is used for controlling the pressure of the gas and air supply to gas burners and gas appliances in industry and the heating sector. Thanks to an additional safety diaphragm, no breather line is required.

Calculating the nominal size: A web app selecting the correct product is available here.