Vibration Damping - HYDROO VDROO Serie Manual De Instrucciones De Instalación Y Operación

For pumps with a ≥ 37 kW motor, the length and width of the base plate should always
be 1,5 x 1,5 (L x B ) meters.
f f
The weight of the foundation stand must be at least 1.5 times the total weight of the
pump. To calculate the minimum foundation stand height (h
h =
f
Concrete density (δ) is generally estimated at 2200 kg/m
Facilities where silent operation is of great concern, we recommend a foundation stand
up to 5 times the weight of the pump.
As shown in Figure 10 the stand must be fitted with bolts to secure the pump. Once
the bolts have been installed, you may proceed to place the pump on the stand. If
necessary, the pump base plate can be aligned by means of wedges to level the stand.

5.4. Vibration damping

When dampers are to be used, they should be installed under the foundation stand.
For pumps fitted with ≤ 30 kW motors, vibration dampers can be installed as in Figure
11.
For pumps fitted with ≥ 37 kW motors, install a damping plate to reduce vibration and
noise as in Figure 12.
74
):
f
m × 1,5
pump
× δ
L × B
f f determinated
.
3
Figure 10:
Bolt in foundation stand
Figure 11:
Pump on vibration dampers
Figure 12:
Pump on a vibration damping plate
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