Xylem LSB - Manual (Page 81)

Installation, Operation and Maintenance Instruction Model LSB
LSB 100-english page 77 Revision 02
Artikel Nr. 771076129 Ausgabe 01/2010
Position (7) - Stub shaft
2 - without shaft sleeve (Duplex 1.4462 std)
Position (8) - IEC Motor size
3.2 Shaft Sealing
Pumps of design LSB are exclusively sealed with
single mech. seals with installation dimensions acc. to
EN 12756 (DIN 24960), design "K", form "U".
Two shaft sealing variants are available. On the data
sheet and / or the order confirmation the kind of shaft
sealing is given. An instruction for the mounting and
operation of mech. seals is contained in the particular
"Mounting Instruction of Shaft Sealing".
For nominal size (d
1
) of the mech. seal refer to
following chart.
Type
nom. size
d
1
of mech.
seal
Type
nom. size
d
1
of mech.
seal
40-25-160 33 100-65-160 43
40-25-200 33 100-65-200 43
40-25-250 43 100-65-250 43
50-32-160 33 100-65-315 53
50-32-200 33 125-80-160 43
50-32-250 43 125-80-200 43
50-32-315 43 125-80-250 43
65-40-160 33 125-80-315 53
65-40-200 33 125-100-200 43
65-40-250 43 125-100-250 53
65-40-315 43 125-100-315 53
80-50-160 33 150-125-250 53
80-50-200 33 150-125-315 53
80-50-250 43 200-150-250 53
80-50-315 43
The mech. seal used in the standard design is
not resistant to mineral oils.
For further details about mech. seals, as well as
the dangers of accidents, connected to them
refer to chapter 6.6 and chapter 7.2.
3.3 Bearing
The shaft is guided by the ball bearings of the motor.
The bearings are grease lubricated for life and,
therefore maintenance-free.
3.4 Approximate Value for Sound
Pressure Level
Sound pressure level L
pA
in dB(A)
Pump alone Pump + Motor
Nominal
power
P
N
in kW
2950
min -1
1450
min -1
975
min -1
2950
min -1
1450
min -1
975
min -1
0,55 50,5 49,5 49,0 58,0 52,0 51,5
0,75 52,0 51,0 50,5 59,0 54,0 53,0
1,1 54,0 53,0 52,5 60,0 55,5 54,5
1,5 55,5 55,0 54,5 63,5 57,0 56,0
2,2 58,0 57,0 56,5 64,5 59,0 58,5
3,0 59,5 58,5 58,0 68,5 61,0 62,0
4,0 61,0 60,0 59,5 69,0 63,0 63,0
5,5 63,0 62,0 61,5 70,0 65,0 65,0
7,5 64,5 63,5 63,0 70,5 67,0 67,0
11,0 66,5 65,5 65,0 72,0 69,0 68,5
15,0 68,0 67,0 66,5 72,5 70,0 70,5
18,5 69,0 68,5 68,0 73,0 70,5 74,0
22,0 70,5 69,5 69,0 74,5 71,0 74,0
30,0 72,0 71,0 - 75,0 72,0 -
37,0 73,0 - - 76,0 - -
Sound pressure level L
pA
measured in 1 m distance
from pump surface acc. to DIN 45635, part 1 and 24.
Room and foundation influences are not considered.
The tolerance for these values is ±3 dB(A).
Addition with 60 Hz-operation:
Pump alone: −
Pump with motor: +4 dB(A)
3.5 Permitted Nozzle Loads and Torques
at the Pump Nozzles ...
... following the Europump-Recommendation for
pump acc. to ISO 5199.
The data for forces and torques are only valid for static
piping loads.
All values for forces and torques refer to standard
materials EN-GJS400-18LT and 1.4408.
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