Many processes in the chemical and petrochemical industry are usually operated continiously. Consequently, the process pumps will also be operated 24 hours per day. Maintenance and other service activites of often only possbile once a year during planned plant shutdown.
Therefore, used pump technology must reliably work up to 8,800 hours at a time between services without any failure!
Usually, standby capacities must be kept to keep the process running in case that any problems arise. Further, very detailed and strict project specifications and other regulations by final enduser and licensor have to be met by the pump supplier.
Suitable pump configuration must meet process requirements without being too conservative in terms of pump speed. Too low pump speed would result in too big and expensive pump units.
High viscous process media, for example asphalt or residual oil, require extremely high process temperatures to keep them in liquid state of aggregation. The high process termperatures is a challenging factor fror the pump design. Further challenge is the required unmanned plant operation. Detailed instrument selection incl. complex machine monitoring are used the reduce the risk of unplanned shutdown of the pump systems.