Semi-Submersible Vertical Electric Pump Unit Series NVD for Wastewater Management

recommended for upgrading positions with pumps NV, NV-E, 12NA9x4 and others; main application - pumping of polluted water and oil products (and their mixtures) with viscosity up to 100 cSt from underground drainage tanks; volumetric content of solid inclusions in the pumped medium up to 3%, size up to 10 mm; operating temperature from minus 60° to plus 80°?; immersion depth up to 9 m; do not require maintenance and control, including additional protective automatics; can be installed outdoors without a canopy (clim. var. UHL1); equipped with explosion-proof electric motor; material of submersible and flowing parts - steel 35???, 09G2S; two mechanical seals with an intermediate chamber filled with shut-off liquid; a device for controlling leakage of sealing liquid from the chamber between mechanical seals; hermetic "dry" column with ball bearing supports filled with grease; are manufactured according to TDFA.062621.100.TU; correspond...