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Handling of pre-treated sewage

KSB-KWP-Bloc Horizontal, radially split volute casing pump with various impeller types




KSB-KWP-Bloc Horizontal, radially split volute casing pump with various impeller types

Horizontal, radially split volute casing pump in closecoupled design, single-stage, single-entry, available with various impeller types: non-clogging impeller and free-flow impeller.

The hydraulic system and the motor are firmly connected and form a close-coupled
unit. Impeller (7) and motor (10) are arranged on a common shaft (5)



Handling of pre-treated sewage, waste water, all types of slurries without stringy substances and pulps up to 5 % bone dry with a maximum density of 1.1 kg/dm3.






The steadily rotating impeller (7) of the centrifugal pump transfers mechanical
energy to the fluid passing through.

KSB-KWP-Bloc-ModularThe fluid enters the pump axially via a suction nozzle (6) and is accelerated outward
in a cylindrical flow by the rotating impeller (7). The flow profile of the pump casing
converts the kinetic energy of the fluid into pressure energy. The fluid leaves the
pump via the discharge nozzle (2).
The casing is fitted with a replaceable wear plate (1). The diagonal clearance gap
prevents frequent deviation of the flow in the clearance gap heading in the direction
of the suction nozzle. This ensures a longer service life if solids-laden fluids are
The casing is closed by a discharge cover (3). The shaft (5) enters the casing via this
discharge cover. A shaft seal (8) provides reliable sealing towards the atmosphere.
The shaft is supported by oil-lubricated rolling element bearings (9). The motor (10) is
connected to the casing via an intermediate lantern (4)



Overview of technical data

Type of bearing Rolling element bearings
Casing partition Radially split
Drive frequency 50 Hz / 60 Hz
Type of drive Electric motor
Drive voltage Low voltage
No. of impeller entries Single entry
Impeller material (EN standard) ERN; NORIDUR 1.4593
Type of installation Close- coupled
Type of coupling Direct
Type of lubrication Grease lubrication
Max. permissible fluid temperature 100 °C
Nozzle position End suction
Maximum rated pressure (discharge) PN 10
Pull-out design Yes
Pump set location Dry installed
Shaft material (EN standard) 1. 4021;1.4462
Suction characteristics Non- priming
Type of casing Volute casing
Type of impeller Closed; Multi-vane impeller;Free flow impeller;Radial
Type of connection Flange
Casing material (EN standard) NORIDUR 1. 4593;JL 1040
eClass assignment 36410000; 36410100;36410103;36410101
Free passage 70 mm
Maximum head 100, 00 m
Minimum head 2, 00 m
Installation position Horizontal or vertical
Shaft seal type Mechanical seal
Main applications Industry and process engineering
Casing material Duplex steel; Cast iron
Maximum discharge-side pressure 10 bar
Maximum drive rating 22 kW
Type of installation Stationary
Maximum flow rate 330 m³/h
Minimum flow rate 4 m³/h
Maximum speed of rotation 3. 500 1/min


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