4 Description of the Pump (Set)
18 of 84
Amarex N
2563.84/08-EN
Table 8:
Installation type P – transportable wet installation
Installation type
Description
P7
P1
P6
P1: pump
P6: foot
P7: chain and shackle, length = 5 m
4.7 Configuration and function
1
2
3
4
8
9
10
7
6
5
1
Shaft
2
Bearing bracket
3
Discharge cover
4
Suction cover
5
Suction nozzle
6
Discharge nozzle
7
Impeller
8
Shaft seal
9
Bearing, pump end
10
Bearing, motor end
Design
The pump is designed with an axial fluid inlet and a radial outlet. The hydraulic
system sits on the extended motor shaft. The shaft runs in common bearings.
Function
The fluid enters the pump axially via a suction nozzle (5) 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 is pumped to
the discharge nozzle (6), where it leaves the pump. At the rear side of the impeller,
the shaft (1) enters the casing via the discharge cover (4). The shaft passage through
the cover is sealed towards the atmosphere with a shaft seal (8). The shaft runs in
rolling element bearings (9 and 10), which are supported by a bearing bracket (2)
linked with the pump casing and/or discharge cover.
Sealing
The pump is sealed by two bi-directional mechanical seals in tandem arrangement.
A lubricant reservoir in-between the seals ensures cooling and lubrication of the
mechanical seals.
Summary of Contents for Amarex N series
Page 80: ...Index 80 of 84 Amarex N 2563 84 08 EN W Warnings 7 Warranty claims 6...
Page 81: ......
Page 82: ......
Page 83: ......
