As part of the project to upgrade water treatment facilities of one of the refinery plant in Russia, have been made BN021S02HYXVT pump units. They are intended for pumping of the collected oil.

These pumps are equipped by variators of friction type that allow mechanical control of flow rate of pumped liquid in the range of 0.05 to 0.15 m3 per hour, with a maximum pressure up to 7 bar.

Pump units have 1ExdIIBT4 explosion-proof electrical engines and protection from "dry run".