GVG DIFFUSER STYLE BARREL PUMP

Maximum safety pump used in nuclear power plants

The GVG is a pump especially designed to charge the reactor coolant in a nuclear power plant. The pump is designed to produce high pressure by small capacity with direct drive.

Main benefits

Maximum safety due to double casing design. Pipework connections remain undisturbed during disassembly of cartridge
Vertical back-to-back barrel type pump

Main applications

Reactor cooling in nuclear power stations
Control rod drive pump

Main design features

Vertical barrel pump with high number of stages
Back-to-back desgin of impeller arrangement to reduce axial load
High alloyed barrel material avoids corrosion
Double mechanical seal with external seal water cooler
Product-lubricated radial bearings
Axial thrust anti-friction bearing for residual axial load

Key characteristics

Capacities	Up to 65 m³/h / 285 US gpm
Heads	Up to 1,900 m / 6,230 ft
Pressures	Up to 200 bar / 2,900 psi
Temperatures	Up to 100°C / 212°F
Discharge sizes	80