The Zero Governors and Equalizing Regulators are for use with gas burning appliances and gas burners, and maintain a constant outlet pressure regardless of changes to the condition of the inlet pressure and flow rate. PT-threaded compact design allows it to be equipped in gas burners and/or gas burning appliances, especially small size models which have aluminum light-weight and stable bodies. By combining with other equipment and/or appliances, these products keep a constant mixture ratio of air and gas. This can make it easy to control combustion temperature automatically. It is widely adopted by popular boiler or burner manufactures as their essential inner components in both domestic and overseas markets. The outlet pressure of Equalizing Regulators is in proportion to loading pressure by adding air pressure (loading pressure) from the vent in the cover.

Please see the tables below for more detailed specifications and optional functions.

The venturi mixer draws in gas by ejecting air at high pressure through the inner nozzle. The gas pressure is reduced to zero (atmospheric pressure) by zero governor and makes gas proportional to the amount of air drawn in.

The equalizing regulator keeps the upstream pressure of the orifices on the gas line as the same as an air line by loading the air to the regulator cover vent from the air line. It fixes the air ratio to be mixed. Please see the installation images.