The TsEN-181 Canned Electric Pump of repair cooling is designed to install an atomic steam-generating plant in the primary-coolant system. The TsEN-181 is a vertical canned electric pump of monoblock design with a screened asynchronous electric motor.

Bearings are lubricated and cooled with pumped water;
In-built cooler of electric motor stator;
Self-suction due to ejector;
High reliability, long period of continuous running without maintenance is proved by its long operation as a unit of plants of ice-breakers without repair.

Materials:

for bearings - graphite-fluoroplastic;
for parts contacting with pumped water - stainless steel.

The GTsEN-310 Reactor Coolant Pump is designed to circulate the coolant in the primary circuit of NPP with WWER-440 reactor.

The GTsEN-310 Pump Unit consists of a canned pump unit, cooler designed for cooling the independent circuit water, fan designed for cooling frontal parts of the motor stator winding, VTsEN-315 auxiliary pump designed for circulating in the independent circuit at GTsEN-310 standing idle, piping system, support frame and spherical bearings.

The GTsEN-310 Pump Unit is a vertical canned glandless single-stage centrifugal pump with a built-in squirrel-cage asynchronous motor. Separating the motor stator from the rotor chamber by a nichrome partition provides the pump unit leak-proofness.

The VTsEN-315 Electric Pump is designed to circulate the distillate in circuits of power plants or to circulate the primary circuit coolant at NPP with water-water reactors when it is used in the independent circuit of reactor coolant pumps. The VTsEN-315 is a vertical canned electric pump; it consists of a centrifugal single-stage pump and an electric motor arranged as one unit. The electric motor stator is tightly separated from the rotor chamber by a thin-walled nichrome partition.

The electric pump can be used in different branches of industry;
The electric pump meets the requirements of acting regulatory documents of the Russian Federation Supervisory Bodies (GAN RF); it belongs to safety class 2N according to PNAE G-1-011-98 and meets the requirements of Group В according to PNAE G-7-008-89;
The VTsEN-315 provides a possibility of operation in seismic regions with tropical climate.

The TsNPS-1397 Circulating Pump is designed to circulate the coolant in the loops of high-head plants.

The TsNPS is a vertical, canned monoblock that consists of a screened canned synchronous motor and a vertical centrifugal four-phase pump. A rubber gasket provides tightness between the pump casing and the electric motor casing. A torque is transferred from the motor to the pump shaft through a coupling.

High reliability, longevity

The GTsN-1391 Reactor Coolant Pump is designed to circulate the coolant in the closed circuit of NPP with WWER-1000 (earthquake-resistant design).

The pump is centrifugal, single-stage, vertical with a unit of a face shaft seal, cantilever impeller, axial water supply and a remote asynchronous motor (with a flywheel).

Just before switching on the pump to decrease frictional forces in operational pairs of the radial-axial bearing an unloading electromagnet is used.

There are two unfastening zones for reacting seismic loads.
There are stops to restrict the pump emergency moving when the primary circuit pipe-line is broken.
Bearings are cooled and lubricated with water.
High reliability, long continuous operation.

Materials:

radial bearing and operational seal unit - silica graphite
radial bearing - graphite-fluoroplast on steel

The GTsN-195 Reactor Coolant Pump (GTsN-195М) is designed to circulate the coolant in the closed circuit of power plant V-1000 (WWER-1000).

The GTsN-195 (GTsN-195М) is a vertical, centrifugal, single-staged pump with a mechanical shaft seal, cantilever impeller, axial water supply and a remote asynchronous motor (with a flywheel).

The GTsN-195 (GTsN-195М) provides high reliability, long continuous operation without maintenance.