Flowserve LNGT - Manual (Page 16)

LNGT USER INSTRUCTIONS ENGLISH 00083107 02-08
Page 16 of 48
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4 INSTALLATION
4.1 Location
The pump should be located to allow room for
access, ventilation, maintenance and inspection
with ample headroom for lifting and should be as
close as practicable to the supply of liquid to be
pumped.
Refer to the general arrangement drawing for the
pump set.
4.2 Foundation
There are many methods of
installing pump units to their foundations. The
correct method depends on the size of the pump
unit, its location and noise vibration limitations.
Non-compliance with the provision of correct
foundation and installation may lead to failure of
the pump and, as such, would be outside the
terms of the warranty.
The surface onto which the pump unit is to be
placed should be of a material, which is
sufficiently hard and strong to provide a
permanent, non-flexible support to the entire
bearing surface of the pump unit.
The surface should also be smooth and level and
should be able to absorb normal vibrations and
loads the pump unit is subjected to during
operation. A concrete foundation is the most
suitable surface.
4.2.1 Grouting
Where applicable, grout in the foundation bolts.
See picture below for possible foundation bolt
types.
Prepare the recesses in the surface according to
following picture following the general
arrangement of the pump unit when doing so.
If the surface is concrete, follow the steps below:
ƒ Do not place the pump unit on the surface
until the surface is fully cured.
ƒ Fill the recesses with water at least 24 hours
before grouting the foundation bolts.
Moistening the recesses will ensure a better
bond between the grout of the foundation
bolts and the surface.
ƒ Remove the water from the recesses at the
time the foundation bolts are being grouted.
4.2.2 Positioning of the foundation bolts
Hoist the pump unit and position it above the
surface according to the lifting instructions.
Place the foundation bolts with nuts in the
foundation frame.
When positioning the pump unit, make
allowance for the following:
ƒ The foundation bolts should be free to move
in the surface recesses.
ƒ The level of the centerline of the suction and
delivery connections should match the
centerline of the pipelines to be connected.
ƒ The position of the suction and delivery
connections for the X- and Z-axis
• The vertical distance between the surface
and the foundation frame [40 mm] to enable
grouting.
ƒ Put steel filler blocks onto the surface on both
sides of the foundation bolts
ƒ Place the pump unit on the filler blocks.
ƒ Adjust the pump unit so that it is roughly
horizontal and at the required level height
using [thin] shims between the steel filler
blocks and the foundation frame. In doing
this, the foundation frame should be
positioned so that the suction and delivery
flanges can be fitted to the pipe flanges free
of strain. Make sure that in doing so, the
flanges to be interconnected are parallel
within 0.1 mm of each other.
ƒ Check whether the bolts fit easily into the bolt
holes of the flanges. Fasten the foundation
bolts by filling the recesses using non-