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Automatic Control Valves



Pressure Reducing Pilot

Lead Free* Models Available


3/8 in


The Model CP15SS is a direct acting, diaphragm actuated Pilot that
automatically reduces a higher upstream (inlet) pressure to a constant
downstream (outlet) pressure. It is normally held open by the
force of the adjustable spring setting above the diaphragm.

The Pilot modulates towards a closed position when outlet pressure
exceeds the spring setpoint, lowering the delivery pressure. It
modulates towards an open position when the outlet pressure falls
below the spring setpoint, increasing the delivery pressure.

When a Model CP15SS is installed in the piping circuit of an
Automatic Control Valve its throttling action causes the Main Valve
to throttle open or closed accordingly. Turning the adjustment screw
clockwise raises the control setpoint, increasing Main Valve outlet
pressure. Turning the adjustment screw counterclockwise lowers
the control setpoint, decreasing Main Valve outlet pressure.

The Model CP15SS is equipped with one 3/8 in NPT inlet and three
outlet ports for ease of installation. The unused outlet ports may be
plugged or used as a pressure gauge connections.

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Disclaimer: Watts product dimensions in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

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*The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.