NBD

NBD

The pumps NBD are intended for hydraulic transport of abrasive hydro mixtures. They could be used for fluids pumping, as far as their parameters and material version satisfy for specific fluid.

Application

It concerns about innovated pumps series NBA, NBV.
The pumps NBD are intended for hydraulic transport of abrasive hydro mixtures. They could be used for fluids pumping, as far as their parameters and material version satisfy for specific fluid. They could transport slag, cinder, gravel, soil and another solids floating in water. Main using is in power plant systems.

Construction

Hydraulic part consists of volute core, suction cover and impeller. The core is solved, that from head side is closed, from suction side is opened and in assembled position is closed with suction cover, which is used also as pump inlet system. Impeller is radial type, closed with single-sided inlet. It is griped through spire. The pumps NBD having massive mechanical part solved principally different way as pumps NBA and NBV. Bearing pedestal consists of one compact unit, which location is in massive bearing stool. Solving of bearing stool allows slewing of pump discharge according to necessity to different positions. Considerably easily is pump assembly and disassembly. Axial allowance among impeller, suction filler and volute is adjusting in simple way by releasing and tightening the nuts on bearing stool and adjuster bolt. Shaft location is in massive bearings lubricated with fat or oil. Hydraulic space is stuffed with soft packing. Water is transporting from separate source with pipe, which one side is attached to the discharging pump body and another is attached on the main branch pipe.

Execution

VC - volute casing, suction cover, impeller - stainless steel, suction body, discharging body, connecting body, discharging transition branch - cast iron, bearing pedestal - grey cast iron, forged shaft - constructional steel.
Selection of pump material version is according to pumping liquid

Delivery range

pump with free shaft end
pump with complete shaft coupling
pump with complete shaft coupling on base plate under pump and motor
pump with complete shaft coupling on base plate under pump
pump with complete shaft coupling and electric motor on divided base plate.

Dredge

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