Wilden Stallion Series Air-Operated Double-Diaphragm (AODD) Pumps are designed with larger internal clearances and a modified ball/seat check-valve assembly that allows passage of larger solids than standard AODD pumps. The Stallion Series also features a single exhaust port and a snorkel, allowing it to be submerged in process fluid. Because of these design elements, the Stallion Series excels in solid-laden fluid-handling applications such as dewatering, waste transfer, skimmer systems, and various mining applications where the solid concentration is too high or the solids are too large for standard AODD pumps.