Pump designs fall mainly into two categories: centrifugal and reciprocating (piston) type, each with its own benefits and constraints. Mike Sherman of RMI Pressure Systems looks at the design criteria and some of the applications.
Steve Smith argues that by integrating accumulators into active heave compensation control systems, end users could achieve energy savings of up to seventy four percent.
Steve Sands looks at the benefits of end-position cushioning systems in pneumatic drives, the various cushioning technologies and weighs up the advantages and disadvantages of the different approaches to end-position cushioning.
Two quite different manufacturers – one involved in packaging materials, the other in automated laboratory systems – place considerable store by the simplicity and accuracy of peristaltic pumps.
As the exploration depths involved in offshore oil production continue to get deeper the development of more complex sub-sea structures, connected by umbilical systems, becomes a necessary part of the production infrastructure.