The Pneumatic Dynamic Lifter (PDL) is a responsive compact sewage relief valve with 100% surge protection resulting from pump or power failures. It can handle high pressures and uses a compressed air cylinder to hold the valve closed. It is designed to minimize maintenance and keep costs low. The piston and closing speed controls operate separate from the sewage, in a clean, non-contaminating environment and easily opens through the actuator to flush out unwanted build-ups.
