KSB Etaline-R, Installation & Operating Manual

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7 Servicing/Maintenance
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Etaline-R
7.6 Tightening torques
7.6.1 Tightening torques for the pump set
903.01 922
903.04
902.01
920.01
901.18
920.11
903.02
903.03
903.16
Fig. 12:
Tightening points
Table 15: Tightening torques for bolted/screwed connections at the pump
Part No. Description Material Stamp mark
Thread
Tightening torques [Nm]
New
threads
8) - 15 %
9)
- 20 %
9)
902.01/
920.01 Stud/
nut 1.7709+QT GA M16 190 162 152
Monix 3K MM 320 272 256
1.7218+QT+A2D G M20 330 281 264
Monix 3K MM (M3k) 620 572 496
922 Impeller nut 1.4571 - M 20 x 1.5 200 - -
M 24 x 1.5 500 - -
901.18/
920.11 Hexagon head bolt/
nut 8.8 - M12 55 - -
M16 130 - -
M20 240 - -
903.01/
903.02 Screw plug Steel - G 3/4 220 - -
903.03/
903.04 G 1/2 130 - -
903.16 G 1/4 55 - -
7.7 Spare parts stock
7.7.1 Ordering spare parts
Always quote the following data when ordering replacement or spare parts:
▪ Type series
▪ Size
▪ KSB order number
8)
These values are determined on the basis of a friction coefficient of μ = 0.12.
9)
After repeated tightening of the threads and in case of good lubrication the values shall be reduced by 15 to 20 %.