With the simplex design, baskets can be removed for cleaning only when the process is shut down and thus are used for “batch” applications or processes which can be interrupted for basket cleaning. Usually, shut-down time is minimal due to the quick-opening basket chamber cover closures.
Once the flow has stopped and the strainer chamber isolated, a vent valve is used to relieve the chamber pressure and to facilitate quicker draining with the drain valve or plug at the chamber bottom.
Once the basket has been cleaned of particulate, it is placed back in the strainer and the application process may continue. Its common practice to use a spare basket to quickly replace the dirty basket and then the dirty basket can be cleaned and set aside for the next cleaning cycle.