50830 Series Low Pressure Centrifugal Pump. “CYCLONE PUMP”. Stainless Steel DC Motor / Pump Unit. A range of Stainless Steel General Purpose ... Heavy duty robust stainless steel constructionOne tool servicing (3/8” Spanner)Virtually silent running centrifugal pumpLong-life DC motorRotatable head 90° segmentsAnti-clogging impeller designLong-life mechanical seal...

Technical information. Selecting Centrifugal Pumps .... Parallel Operation of Centrifugal Pumps . ..... Table 1: Centrifugal pump classification. Number of stages ...

Centrifugal Pumps: Basics Concepts of Operation, Maintenance, and Troubleshooting, Part I. By: Mukesh Sahdev, Associate Content Writer. Presented at The ... The list of pump failure conditions mentioned above is neither exhaustive nor are theconditions mutually exclusive. Often the root causes of failure are the same but thesymptoms are different. A little care when first symptoms of a problem appear can save thepumps from permanent failures. Thus the most important task in such situations is to findout whether the pump has failed mechanically or if there is some process deficiency, orboth. Many times when the pumps are sent to the workshop, the maintenance people do notfind anything wrong on disassembling it. Thus the decision to pull a pump out of service formaintenance / repair should be made after a detailed analysis of the symptoms and rootcauses of the pump failure.....

FLOW RECIRCULATION IN CENTRIFUGAL PUMPS by. Warren H. Fraser. Chief Hydraulic Engineer. Worthington Group. McGraw-Edison Company. Harrison ...

52 www.cepmagazine.org May 2002 CEP. Fluids/Solids Handling entrifugal pumps are the most com- mon type of kinetic pump, and are used most often in ... The process engineer is normally responsible forspecifying the process requirements of the pump, including the conditions and physical properties of the liquid,and, most importantly, the flowrate, pressure, densityand viscosity. The flowrate determines the capacity ofthe pump, and the head depends on the density and viscosity of the liquid.In general, the required flowrate is determined by thematerial and energy balances. Design margins, typicallybetween 0–25%, are added to the material-balanceflowrate to account for unexpected variations in properties or conditions, or to ensure that the overall plantmeets its performance criteria. Also, minimum flow protection is often added as continuous circulation...