Design Features; Pressure And Temperature Limits - KSB UPA 200B Livret Technique

Design Features

Sizes
Designation
No. of stages 50 Hz
Impeller p
Impeller fixing
Diffuser
Guide bearing (radial)
Intermediate bearing
(radial)
Gap -- Standard
protection protection
-- Variant
per stage
Axial thrust
Casing connection
Non-return valve
Connection nozzle
(Variant)
Pump -- Standard
end -- Variant
Coupling
Horizontal installation
Drive / speed
Characteristic curves, single stage
To calculate the pumps manually, a number of plots of the single
stage characteristic curves are available with tolerances as per
ISO 9906 Kl. 2 (performance curves booklet 3415.41). These
curves plot the head per stage H
over Q for full size and also for several reduced impeller diame-
ters D .
A
Also plotted are: head losses H
pump's NPSH required over Q, the efficiency loss as function
of stage number and maximum power consumption per stage
P as function of impeller diameter D
2STmax
Characteristic curves with tolerances as per ISO 9906 Kl. 1 or
acceptance tests as per DISO 9906 Kl. 2 or /Kl. 1 available on
request.

Pressure and Temperature Limits

Operating pressure:
Max. operating pressure (Q = 0 m
Motor sizes
UPA 200B - 80
UPA 200B - 130
UPA 250B - 120
UPA 250B - 150
UPA 250B - 250
4
UPA 200B - ...
80
1 12
mixed-flow
key
generally 1 bearing in the last stage.
1 x in the first stage
for no. of stages
1 impeller + 1 casing wear ring.
impeller + casing wear ring in special materials (more wear resistant design).
balancing by axial bearing in the motor. Values for that see tables pagee 8 + 9.
balancing in the pump shaft for
no. of stages
²
with spring loaded valve plate and with rubber joint ring on valve seat.
if required, valve plate in non-return
valve ex works fixed in position "open".
G 5
DN 125
with bearing pedestals in standard execution up to no. of stages ...
± 8
for bigger no. of stages with bearing pedestals on request.
3 µ, UMA 150D and 200B / 2 poles.
and also the efficiency η
ST
in the non-return valve and the
V
.
A
bar
32
26,5
49,5
36
28,9
50 Hz
130 120
1 11 1 12
clockwise impeller, closed and reducible,
integrated in stage casing
8
²
6
studs
if required, non-return valve ex works
G 5 G 6
DN 125 DN 150
inflexible sleeve coupling.
± 8 ± 6
3 µ, UMA 150D, 200B and 250B / 2 poles.
Operating temperature:
For a first estimate in standard cases (vertikal installation):
o
T + 20 C. Condition for that is a flow along the motor with
¶ ¶ ¶ ¶
v 0.2 m/s (that is satisfied for ex. with installation in deep well
²
above the filter area, etc.).
P
For more elevated temperatures and other modes of installa-
tion see data in the pump catalogue or in motor documentation.
Attention: In all cases it is to respect the admissible max.
temperature of the assigned motor in acc. to data in pump cata-
logue or in performance curves booklet for motors!
General note: There is no dependency between operating
pressure and temperature of liquid handled.
Immersion depth:
-- Min. immersion depth: 0,5 m in relation to the upper edge
of pump (vertical installation) or suction strainer (horizontal
installation). Dependent on NPSH required the pump must
3
/h)
be installed deeper.
Decisively is here always the water level lowered to a
minimum (operating water level).
-- Max. possible immersion depth: theoretically without limits.
Decisively is here always the maximum water level
(stationary water level).
Attention: max. immersion depth ± 500 m by use of
standard motor cable!
UPA 200B + 250B
UPA 250B - ...
150 250
1 9 1 8
mixed-flow
locking sleeve
1 bearing per stage. g p g
1 casing wear ring.
------
without inlets.
G 6 G 6
DN 150 DN 150
± 6 ± 6
GB