Wilden Pumps features a photograph by Beckwith & Kuffel Service Department on their new Brahma Series brochure. We were called in for mud removal on a local tunnel project. This Air-Operated Double-Diaphragm (AODD) Pump transfers solid-laden slurries. It has a flap-valve design with a large internal clearance and a flow-through wetted path. These features prevent the  pump from clogging, and allow large solids up to 76 mm (3”) to pass. We attached a muffler for noise control.