When carrying out simple cleaning tasks in smaller tanks or vessels that require a simple rinse, the fixed or static spray nozzle continues to provide excellent cleaning.
However, “effective” is not always the same as “efficient.” The other areas are only rinsed, in terms of cleaning technology. See figure below which shows the impact of the static spray vs rotational spray. To generate an effective flow for removing stubborn grime, spray nozzles require high volumes of liquid. Even in medium sized tanks (5ft to 10ft in diameter), static systems have limitations. If you analyze the entire cleaning cycle of application, the spray nozzles are not economical. To meet the growing demands of hygiene, plant efficiency and the environment, rotating nozzles are considered a better choice in most cases today.