Flowserve CPXVC - Manual (Page 15)

CPXVC USER INSTRUCTIONS ENGLISH 26999930 03-11
Page 15 of 32 flowserve.com
If there are any circumstances in which the system
can allow the pump to run dry, or start up empty, a
power monitor should, in addition to level control, be
fitted to stop the pump or prevent it from being
started. This is particularly relevant if the pump is
handling a flammable liquid which would need an
abatement technique due limitations of the ATEX
Categories available.
If leakage of product from the pump or its associated
sealing system can cause a hazard it is recommended
that an appropriate leakage detection system is installed.
To prevent excessive surface temperatures at
bearings it is recommended that temperature or
vibration monitoring are carried out.
5 COMMISSIONING, START-UP,
OPERATION AND SHUTDOWN
These operations must be carried
out by fully qualified personnel.
5.1 Pre-commissioning procedure
5.1.1
Lubrication
The pump grease lubricated antifriction bearings are
normally supplied fitted with grease nipples and with
pre-greased bearings.
Grease lubricated electric motor bearings are generally
pre-greased. Refer to the motor UI for information on
the motor lubrication schedule.
Pumps with grease lubricated thrust bearings and
electric motors are supplied with pre-greased bearings.
Where the ambient is very low special lubricants are
required. If in doubt consult Flowserve for
recommendations of grease types at these lower
temperatures. Where low ambient grease has been
specially fitted this is Shell Aeroshell 22.
5.2 Pump lubricants
5.2.1
Recommended grease lubricants
Grease NLGI 2 * NLGI 3
Temp. range
-20 to +100 ºC
(-4 to +212 ºF) -20 to +100 ºC
(-4 to +212 ºF)
Designation
acc. to DIN
KP2K-25 KP3K-20
BP Energrease LS-EP2 Energrease LS-EP3
Elf Multis EP2 Multis EP3
Fuchs RENOLIT EP2 RENOLIT EP3
Esso Beacon EP2 Beacon EP3
Mobil Mobilux EP2 Mobilux EP3 **
Q8 Rembrandt EP2 Rembrandt EP3
Shell Alvania EP2 Alvania EP2
Texaco Multifak EP2 Multifak EP3
SKF LGEP 2
* NLGI 2 is an alternative grease and is not to be mixed with other
grades.
** Standard pre-packed grease for fitted antifriction bearings.
5.2.2 Bearing sizes and grease capacities
Bearing location Size Grease quantities – g (oz)
Drive end thrust
bearing
3311C3 Z 35 (1.2)
Optional thrust
bearing
7311
back-to-
back pair
35 (1.2)
Pump end line
bearing
6313C3 Z 20 (0.7)
Note: The bearing sizes do not constitute a purchasing
specification.
5.2.3 Recommended grease lubricants
* NLGI 2 is an alternative grease and is not to be mixed with other
grades.
** Standard pre-packed grease for fitted antifriction bearings.
5.2.4 Recommended fill quantities
Refer to section 5.2.2, Bearing sizes and grease
capacities.
5.2.5 Lubrication schedule
5.2.5.1 Grease lubricated bearings
When grease nipples are fitted, one charge between
grease changes is advisable for most operating
conditions; ie 2 000 hours interval. Normal intervals
between grease changes are 4 000 hours or at least
every 6 months.