![]() ![]() For example, if a pump is used in continuous operation with a high driving pressure of 7 bar, it is recommended to increase to the next size to reduce the driving pressure while maintaining the flow rate, reduce the number of strokes, and increase the lifespan of the diaphragm.Īn in-depth assessment of fluid properties is also essential to the pump selection process. All aspects-including investment, maintenance and energy costs\'97must be considered when deciding on the pump size for an application.Ī pump driven at the limit of the performance curve will experience higher mechanical wear of the elastomers and other components. The operating point helps determine the best size, as well as potential maintenance and energy costs. The operator defines the operating point based on the application, process and requirements. Choosing the right pump size depends on the required flow rate and the backpressure of the system.īecause the specifications for AODD pumps are based on water, it is important to account for fluid viscosity and suction lifts when determining the correct operating point of the pump. When assessing pump performance, users should consider flow rate (displacement), discharge pressure and suction height or pre-pressure. AODD pumps are suitable for applications beyond food and beverage, including industrial, chemical and hygienic fluid handling.ĪODD pumps offer an effective alternative to more costly pump types and facilitate operations for engineers.Ĭhoosing the right pump is essential for efficient operation in any application, and three primary parameters should guide the selection process-performance, fluid properties and environmental conditions. These operation and maintenance-friendly pumps are damage-free even when running against a closed discharge valve. Other advantages include an adjustable variable flow by means of the air supply, low-shear pumping, and a fluid path free of complex seals. With good suction lift characteristics and the ability to handle sludge and slurries with a relatively high amount of grit and solid content, air-operated double diaphragm (AODD) pumps are an effective solution for these applications.Ī positive displacement pump that combines the reciprocating action of a rubber, thermoplastic or Teflon diaphragm with valves on either side, AODD pumps offer users benefits including dry self-priming and damage-free dry running capabilities. AODD pumps offer users benefits including dry self-priming and damage-free dry running capabilities. ![]()
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