HP 8-UB-1 - Manual (Page 12)

UB USER INSTRUCTIONS ENGLISH 71569247 07-04
Page 12 of 32
®
4 INSTALLATION
Equipment operated in hazardous locations
must comply with the relevant explosion protection
regulations. See section 1.6.4, Products used in
potentially explosive atmospheres.
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. Ensure the
following are met.
a) The baseplate should be mounted onto a firm
foundation, either an appropriate thickness of
quality concrete or sturdy steel framework. (It
should NOT be distorted or pulled down onto the
surface of the foundation, but should be
supported to maintain the original alignment.)
b) Install the baseplate onto packing pieces evenly
spaced and adjacent to foundation bolts.
c) Level with shims between baseplate and packing
pieces.
d) The pump and driver have been aligned before
dispatch however the alignment of pump and motor
half coupling must be checked. If this is incorrect, it
indicates that the baseplate has become twisted
and should be corrected by re-shimming.
e) If the pump is driven via a universal joint drive
shaft there may be a requirement to offset the
pump shaft with respect to the driver to optimize
the universal joint drive
shaft bearing life. This
offset will typically be in the range 0 to 4 degrees
depending on shaft design. Please consult the
separate User Instructions before installation.
f) Any support for the universal joint drive shaft
plummer blocks must not exhibit resonant
frequencies in the range 0.8 to 1.2 N where
N = pump running speed.
g) If not supplied, guarding shall be fitted as
necessary to meet the requirements of EN292
and EN953 and or any applicable local safety
regulations.
4.3 Grouting
Where applicable, grout in the foundation bolts.
After adding pipework connections and rechecking
the coupling alignment, the baseplate should then be
grouted in accordance with good engineering
practice. Fabricated steel, cast iron and epoxy
baseplates can be filled with grout. Folded steel
baseplates should be grouted to locate their packing
pieces. If in any doubt, please contact your nearest
service centre for advice.
Grouting provides solid contact between the pump
unit and foundation, prevents lateral movement of
running equipment and dampens resonant vibrations.
Foundation bolts should only be fully tightened when
the grout has cured.
4.4 Initial alignment
4.4.1 Thermal expansion
The pump and motor will normally
have to be aligned at ambient temperature and
should be corrected to allow for thermal expansion at
operating temperature. In pump installations
involving high liquid temperatures, the unit should be
run at the actual operating temperature, shut down
and the alignment checked immediately.