KSB Etanorm V, Operating Manual

Page: 18 / 62

4 Description of the Pump (Set)
18 of 62
Etanorm V
1228.87/01-EN
the shaft (6) enters the hydraulic system through the casing cover (10). The shaft runs
in rolling element bearings (2 and 3), which are supported by a motor housing (1)
linked with the pump casing and/or casing cover (10) via the support column (8) and
the drive lantern (4).
Sealing The pump is seal-less with little leakage flowing into the support column (8) at the
shaft passage (9) and then through the overflow opening (7) back to the tank.
4.7 Noise characteristics
Table 6: Surface sound pressure level L
pA
2)
Rated power input
P
N
[kW]
Pump set:
1450 rpm
[dB]
2900 rpm
[dB]
2,2 64 69
3,0 64 71
4,0 62 73
5,5 68 72
7,5 68 72
11,0 69 75
15,0 69 75
18,5 70 75
22,0 72 78
30,0 71 79
37,0 71 79
45,0 73 79
55,0 74 79
75,0 75 82
90,0 76 82
In wet installation, the pump itself does not contribute to sound emission levels.
4.8 Scope of supply
Depending on the model, the following items are included in the scope of supply:
▪ Pump
▪ Drive
▪
Cover plate
▪ Discharge line
4.9 Pump size / shaft unit combinations
Table 7: Sizes with shaft unit WS 25
Size Casing cover design
Clamped Bolted
050-032-125.1 ✘ -
050-032-160.1 ✘ -
050-032-200.1 - ✘
050-032-250.1 -
✘
050-032-125
✘
-
050-032-160
✘
-
2
Surface sound pressure level to ISO 3744, valid for a pump operating range of Q/QBEP = 0.8 - 1.1 and non-
cavitating operation. If noise levels are to be guaranteed: Add +3 dB for measuring and constructional
tolerance.