Pilot regulators are used to control the outlet pressure of a pilot operated regulator. Conventional pilot regulator provides good pressure regulation, rapid response to changing flow demands, and excellent stabililty. Feedback pilot regulator provides superior pressure regulation under changing flow demands where changes in flow demand are not sudden or cyclical. Constant bleed feature provides maximum sensitivity to system changes. The feedback line must sense the pilot operated regulator outlet pressure and must be connected before turning on the air supply. If the feedback line is not connected, the pilot operated regulator outlet pressure will rapidly increase to the inlet pressure when the adjusting knob on the pilot regulator is turned clockwise.