The Wilden® Equalizer® Surge Dampener SD Series minimizes unwanted pressure fluctuations by providing a supplementary pumping action to virtually eliminate pressure variation and pulsation on Air-Operated Double-Diaphragm (AODD) Pumps. The SD Equalizer automatically sets and maintains the correct air pressure matching the variations in liquid flow or discharge pressure generated by the pump.
Available in 13 mm (1/2”), 25 mm (1”), 51 mm (2”), 51 mm (2”) Advanced and 76 mm (3”) sizes, the SD Equalizer is built with metal wetted components and a metal air regulator body. The SD Equalizer meets demanding ATEX regulations and is ideally suited for use in explosive environments. Available in aluminum and stainless steel, these dampeners use existing Wilden air chambers, liquid chambers, clamp bands and hardware to simplify maintenance. In addition, all standard Wilden diaphragm options are available to meet the most demanding application requirements.