Pump NOU 12,5-120 and electric pump units on its basis

Pump NOU 12,5-120 and electric pump units on its basis are designed for pumping oil and oil products from leakage collection tanks at oil pumping and oil product pumping stations of operating and under construction oil pipelines and oil product pipelines.
The operating mode of the units is periodic.
The units are designed for installation on the tank. The unit should be fixed to the tank by means of fasteners.
The units are designed for operation in explosion and fire hazardous zones of class 2 according to GOST 30852.9 and class B-1g in accordance with the "Rules for Electrical Installations" (PUE), in which the formation of explosive mixtures of category ???, ???? according to GOST 30852.11, explosive mixture group T3 according to GOST 30852.5 and PUE is possible.
The unit and its component equipment: pump, motor and measuring instruments meet the requirements of TR TS 010/2011, TR TS 012/2011, TR TS 020/2011, GOST 31610.0, GOST 31438.1, GOST 31441.1, GOST 31441.5.
The units should be manufactured in....