Design
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)
Applications
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.
Function
The steadily rotating impeller (7) of the centrifugal pump transfers mechanical
energy to the fluid passing through.
The 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
handled.
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 |
