Speck pumpen BADU Block Series, Инструкция по установке и эксплуатации

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The pump is protected from coarse particles by the pre-filter casing (10). The
generously dimensioned suction strainer (11) with its small mesh size provides a high
degree of filtration and enables long cleaning intervals. After passing through the
pre-filter casing, the fluid enters the pump via the suction nozzle (6) and is
accelerated outward by the rotating impeller (7). 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 (2), where it leaves the pump. The clearance gap (1)
prevents any fluid from flowing back from the casing to the suction nozzle. At the
rear side of the impeller, the shaft (4) enters the casing via the casing cover (3). The
shaft passage through the cover is sealed to atmosphere with a dynamic shaft seal
(8). The shaft runs in rolling element bearings, which are supported by a motor
housing (5) linked with the pump casing and/or casing cover (3) via the drive lantern
(9).
The pump is sealed by a standardised mechanical seal.
4.6 Noise characteristics
Table 7: Surface sound pressure level L
pA
1)
Rated power
input P
N
[kW]
Pump set
1450 rpm
[dB]
1750 rpm
[dB]
0,25 53 54
0,37 54 55
0,55 55 56
0,75 56 57
1,1 57 58
1,5 58 59
2,2 59 60
3 60 61
4 61 62
5,5 62 63
7,5 64 65
11 65 66
15 67 68
18,5 68 69
22 69 70
30 70 71
37 71 72
45 73 74
4.7 Scope of supply
Depending on the model, the following items are included in the scope of supply:
▪
Pump with pre-filter casing
▪
Surface-cooled IEC three-phase motor
▪
Cover plates on drive lantern to EN 294
4.8 Dimensions
For dimensions refer to the outline drawing of the pump (set).
Function
Sealing
Drive
Contact guard
1)
Spatial average; as per ISO 3744 and EN 12639; valid for pump operation in the Q/Qopt = 0.80 - 1.1 range and for non-
cavitating operation. If noise levels are to be warranted: add +3 dB for measuring and constructional tolerance.
4 Description of the Pump (Set)
BADU ® Block 17 of 52