KSB Ama-Drainer 4 Series, Инструкция по установке и эксплуатации

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4 Description of the Pump (Set)
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Ama-Drainer 4../5..
4.5 Configuration and function
1
3
2
4
5
6
7
8
9
10
11
Fig. 2: Sectional drawing
1 Bearing, motor end 2 Shaft
3 Bearing, pump end 4 Shaft seal
5 Discharge nozzle 6 Impeller
7 Foot 8 Pump casing
9 Float switch 10 Volute casing
11 Suction nozzle
Design The pump is designed with a vertical fluid inlet and a vertical outlet. The hydraulic
system sits on the extended motor shaft. The shaft runs in common bearings.
Function The fluid enters the pump axially via the suction nozzle (11) and is accelerated
outward by the rotating impeller (6). In the flow passage of the volute casing (10) the
kinetic energy of the fluid is converted into pressure energy. The fluid is pumped to
the discharge nozzle (5), where it leaves the pump. At the rear side of the impeller,
the shaft (2) enters the pump casing (8) which houses the hydraulic system. The shaft
passage through the pump casing is sealed to atmosphere with a shaft seal (4). The
shaft runs in rolling element bearings (1) and (3).