5.5 Foundation
WARNING
Falling objects
Death or serious personal injury
‐
Keep the product in a stable and
fixed position before installing it.
‐
Make sure that the foundation is
suitable for the weight of the
product.
We recommend that you install the pump on a
concrete foundation which is heavy enough to
provide permanent and rigid support for the entire
pump. The foundation must be capable of
absorbing any vibration, normal strain or shock.
The concrete foundation must have an absolutely
level and even surface.
1. Determine the size of the concrete
foundation for vertical or horizontal mounting
of the pump. Follow the instructions below.
2. Place the pump on the foundation.
3. Fasten the pump with anchor bolts according
to the instructions below.
4. Make sure that the base plate is supported on
the whole area.
TM040342
Correct installation
Length and width of the concrete foundation
The recommended length (L
f
) and width (W
f
) of
the foundation for vertical and horizontal mounting
are shown in the figures below.
•
The length and width of the foundation must
always be 7.87 inches (200 mm) larger than
the length and width of the pump.
•
Pumps with a motor size below or equal to 40
HP (30 kW): The length and width of the
foundation must be 7.87 inches (200 mm)
larger than the base plate.
•
Pumps with a motor size equal to or above 50
HP (37 kW): The length and width of the
foundation must always be 4.9 x 4.9 ft (1.5 x
1.5 m).
f
h
Lf
Lf
W
f
TM068985
Foundation, vertical mounting
L
h
W
f
L f
f
f
TM070574
Foundation, horizontal mounting
Minimum height of the concrete foundation
•
Calculate the minimum height of the
foundation (h
f
) using below equation.
•
The mass of the foundation must be at least
1.5 times the total mass of the pump (M
p
).
•
Use a foundation with a mass up to 5 times
that of the pump in installations where
noiseless operation is particularly important.
h
f
=
M
p
X
1.5
L
f
X
W
f
X
c
The density (δ
c
) of concrete is usually taken as
137.3 lb/ft
3
(2200 kg/m
3
).
16
English (US)
