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Pressure Relief Pilot

Lead Free* Models Available


1/2 in


The Model LFPV20CB is a direct sensed direct acting, diaphragm actuated Pressure Relief pilot.

It is normally held closed by the force of the adjustable spring setting above the diaphragm. It modulates toward an open position when
control pressure, exerting force below the diaphragm, exceeds the
spring setpoint, and modulates toward a closed position when the control pressure falls below the spring setpoint. The LFPV20CB
senses upstream pressure through a tapped inlet port. The large
diaphragm-to-seat ratio allows it to open and close within close
pressure tolerances.

Turning the adjustment screw clockwise raises the control setpoint.
Turning the adjustment screw counterclockwise lowers the control

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Disclaimer: Ames product dimensions in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Ames Technical Service. Ames 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 Ames 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.