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Pressure Reducing Pilot

CP15-1SS Series is a remote sensed, direct acting, diaphragm actuated Pilot that is used on various configurations of Automatic Control Valves. It is normally held open by the force of the adjustable spring setting above the diaphragm. The Pilot modulates towards a closed position when remotely sensed pressure exceeds the spring setpoint, and modulates towards an open position when the remotely sensed pressure falls below the spring setpoint. Turning the adjustment screw clockwise raises the control setpoint. Turning the adjustment screw counterclockwise lowers the control setpoint. Series CP15-1SS is equipped with one 3/8 in NPT inlet and three outlet ports for ease of installation, and a 1/8 in NPT side sensing port. The 1/8 in side sensing port is used to monitor upstream or downstream pressure as required by specific valve function.


  • Automatically reduces a higher upstream (inlet) pressure to a constant downstream (outlet) pressure
  • Valve outlet pressure can be adjusted with the top-mounted screw
  • When installed in the piping circuit of an Automatic Control Valve, its throttling action causes the Main Valve to throttle open or closed accordingly
  • 3/8 in. NPT inlet and three outlet ports and a 1/8 in. NPT side sensing port

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific CP15-1SS

Approval Information

For approval information, please refer to the products specification sheet. For any other information on product certification and documentation information, please visit our certification partner websites: