The rugged construction and extra-thick pump casing of Gorman-Rupp air-driven diaphragm pumps stand up to the abuses of the most demanding sludge and slurry applications. They overcome the "high-wear" problem commonly found in double diaphragm and progressive cavity pumps.

Air-driven diaphragm pumps are capable of operating dry on suction lifts up to 6.5 m and handling liquids with solids contents up to approximately 70%. Depending on pump model, they will pass up to 3" (76 mm) diameter spherical solids.

Pump stroke rate, discharge stroke time, suction drive pressure and discharge drive pressure can all be adjusted independently. Pumps will easily handle heavy sludges at their rate of accumulation in clarifiers and settling basins.

The air control system of an air driven diaphragm pump is an essential factor in pump performance. The patent pending Gorman-Rupp Integrated Pneumatic Control System is constructed with durable, time-proven RAMPARTS components for use in real-world applications. With its modular construction, it is both operator and maintenance friendly, allowing in-place service and/or field retrofit of either RAMPARTS or competitors’ pumps.

The Gorman-Rupp Integrated Pneumatic Control System is designed for trouble-free operation at intermittent or continuous duties, as well as variations in temperature, air pressure or pump speed. The Integrated Pneumatic Control System design ensures a full displacement stroke every time, with no guesswork or special operator skills required. It also offers independent control of the suction and discharge strokes, allowing the pump to be 'tuned' to the application. These features make Gorman-Rupp Integrated Pneumatic Control Air Driven Diaphragm pumps easier to apply and install, and more efficient to operate and maintain than conventional diaphragm pumps.