Piping - Andritz SD 39 Série Instructions De Service

Series SD 39
3.3.3 Pumps with V-belt drive (H, HZ, H with stub shaft)
Check and correct the alignment of the V-belt pulleys and belt
tension before pourring in and under the baseplate. After tight-
ening the foundation bolts, the shaft must be free to be turned
by hand without any tight spots (construction with packed
glands: Packed glands must be slackened for this test!).
3.3.4 Vertical pumps with flexible coupling and lantern
mounted motor (SL arrangement)
• Provide steel mounting plates under the pedestals complete
with foundation bolt holes and tapped holes for pedestal fixing
bolts.
• Fasten the set, including the steel mounting plate, to the con-
crete plinth using foundation bolts.
• Align the pump (see para. 3.3.1).
Place steel mounting plates under the pedestals.
• Pour the foundation bolts with cement and allow to set.
• Fill spaces under the plates with non-shrinking cement mor-
tar.
Pumps supplied without motor:
• Adjust the axial clearance between the coupling halves of the
flexible coupling (see para. 3.3.2.1 Table 1). Further align-
ment of the coupling is not required.
• Fasten both coupling halves in the shaft journals with the grub
screws to prevent axial displacement.
3.3.5 Vertical standing pumps, drive via cardan shaft
(SG)
Observe the instructions specific to the type of shaft drive sup-
plied.
• The pump may installed on a single foundation block, provid-
ed with a relief in order to accommodate the inlet pipework, or
on two separate blocks (1).
• The foundations should be adequately dimensioned for the
weight and centre of gravity of the pump, the power of the mo-
tor and the vibration characteristics of the complete pump set.
• For installation and alignment of the pumps on the founda-
tions refer to para. 3.3.4.
• The motor should be carried on a support plate or frame (2)
over the opening in the structural floor (3).
• Position the motor so that the pump and motor shafts are ex-
actly in line. If site conditions make this impossible a deviation
of the drive shaft of 5° from the vertical is acceptable.
• The dimensions between motor and pump shaft ends speci-
fied on the assembly drawing must be adhered to.
• Pack the motor support plate/frame so as to achieve this di-
mension.
• Grout in the foundation bolts and allow to harden.
• Tighten foundation bolts.
• Installation of motor on a concrete floor: Grout the motor sup-
port plate/frame.
• Provide guarding (4) to the drive shaft assembly in accord-
ance with the regulations concerning accident prevention.
3.3.6 Pourring and other final checks
• After aligning and fixing the pump set in position, pour the
baseplate with rapid hardening, non-shrinking cement mortar,
plugging where necessary to achieve full compaction.
• Allow to set for at least 48 hours.
• Retighten the foundation bolts.
• Check the alignment of pump and motor.
Open shaft drive with
universal joint
3.4

Piping

Non-binding suggestions for proper design and installation of
the pipework (the exact design of the pipework must remain the
responsibility of the project manager!).
3.4.1 General
• Provide support for the piping on both sides of the pump and
attach it unstressed onto the pump. Please observe the max.
permissible branch loads (refer to para. 7.2).
• After the piping has been connected, check the running of the
pump and alignment of coupling.
• Use bellow expansion joints with linear reducers.
• Alterations in the length of the piping caused by harsh tem-
peratures and other strains can be prevented by the use of
anchorages on both sides of the pump.
• The pipework should be short and direct and changes of di-
rection should be avoided where possible.
Open shaft drive with
universal joint and
intermediate bearing
(2)
(3)
(4)
(1)
Mounting arrangement SG
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