The Pneumatic Dynamic Lifter is a very responsive compact wastewater relief valve that can handle high pressures and uses a compressed air cylinder to hold the valve closed. This chamber is fitted with a relief pilot that is normally closed as long as the line pressure is lower than the set point. If pressure rises above the set point, the relief pilot opens, causing the air in the cylinder to vent, which in turn opens the valve. The valve closes drip tight when pressure falls below the set point.
Singer Valve also has a patented Spring Loaded version which is used for lower relief pressure systems and does not have the Surge Anticipator option but is more economical. The Dynamic Lifter has been 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 can easily be opened through the actuator to flush out these unwanted build-ups.
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