Configuration And Function - SFA Sanipump VX 50 Bedienungs- Und Installationsanleitung

Design The pump is designed with an axial fluid inlet and a radial outlet. The hydraulic
Function The fluid enters the pump axially via the suction nozzle (5) and is accelerated
Sealing The pump-end shaft seal is a bi-rotational mechanical seal; the motor-end seal is a
64 of 331
4 Description of the Pump (Set)

4.6 Configuration and function

9
8
7
6
5
Fig. 3: Sectional drawing
1 Shaft
3 Discharge nozzle
5 Suction nozzle
7 Shaft seal
9 Rolling element bearing, motor end
system sits on the extended motor shaft. The shaft runs in common bearings.
outward in a cylindrical flow by the rotating impeller (6). In the flow passage of the
pump casing the kinetic energy of the fluid is converted into pressure energy. The
fluid is pumped to the discharge nozzle (3), where it leaves the pump. At the rear
side of the impeller, the shaft (1) enters the casing via the discharge cover. The shaft
passage through the cover is sealed to (is sealed to atmosphere) atmosphere with a
shaft seal (7). The shaft runs in rolling element bearings (8 and 9), which are
supported by a bearing bracket (2) connected to the pump casing and/or discharge
cover.
shaft seal ring.
A lubricant reservoir between the shaft seal ring and the mechanical seal provides
cooling and lubrication.
Sanipump VX 50
1
2
3
4
2 Bearing bracket
4 Suction cover
6 Impeller
8 Rolling element bearing, pump end