26-2300 Series is a highly accurate, diaphragm sensed backpressure regulator. It controls pressures up to 500 psig / 34.5 bar and offers many Cvs from 0.02 up to 1.0. Air and dome loaded versions are available for remote operation or for use with the ER5000 Electropneumatic Controller for automation. Ideal for use in hydraulic or pneumatic testing, calibration, and pump discharge pressure control.