M SLURRY USER
INSTRUCTION ENGLISH 71569241 - 02/08
Page 35 of 60
®
section 3.5.
In most cases the pressure should be based on a shut
off condition. The actual pressure at the stuffing box
depends on several factors such as: size and
condition of the impeller, speed of pump, duty flow
and clearances. A pump operating towards shut valve
will have higher stuffing box pressures than what can
be factored TDH increase.
6.2.5.2 Expeller Packing
For the expeller gland option, the expeller seals the
stuffing box during operation and the packing seals when
the pump is shut down. To lubricate the packing grease
must be injected. For this reason the stuffing box is fitted
with a standard grease nipple. The stuffing box should be
packed with 2 rings at the bottom of the box followed by
split lantern rings and 1 ring of packing. Details for
packing installation described previously for the water-
flushed gland also applies.
The packing and lantern rings are not installed into the
stuffing box at the factory.
TABLE 6.2.5.2 - Expeller Greasing
FRAME
INITIAL
REGREASING
NO.
OZ.
CU. IN.
CU. CM.
OZ.
CU. IN.
CU. CM.
1
0.8
1.0
16
0.2
0.3
4
2
1.3
1.5
26
0.4
0.5
8
3
2.9
3.5
58
0.6
0.8
12
4
3.7
4.5
74
0.8
1.0
16
6.3 Spare parts
6.3.1 Ordering of spares
Flowserve keep records of all pumps that have been
supplied. When ordering spares the following
information should be quoted:
1) Pump serial number
2) Pump size
3) Part name – taken from section 8
4) Part number – taken from section 8
5) Number of parts required
The pump size and serial number are shown on the
pump nameplate.
To ensure continued satisfactory operation,
replacement parts to the original design specification
should be obtained from Flowserve.
Any change to the original design specification
(modification or use of a non-standard part) will
invalidate the pump’s safety certification.
6.3.2 Storage of spares
Spares should be stored in a clean dry area away
from vibration. Inspection and re-treatment of metallic
surfaces (if necessary) with preservative is
recommended at 6 monthly intervals.
6.4 Recommended spares and consumable items
For start up purposes:
1 - complete set of gland packing
2 - shaft sleeves
1 - set of gaskets and seals
(optional: 2 - mechanical seals)
For 2 years operation:
1 - set of bearings (line and thrust)
2 - sets of gland packing
2 - shaft sleeves
2 - sets of gaskets and seals
2 - lantern rings
2 - casing wear rings
(optional: 2 - mechanical seals
2 - impeller wear rings)
For 4 years operation:
1 - set of bearings (line and thrust)
2 - sets of gland packing
2 - shaft sleeves
2 - sets of gaskets and seals
2 - lantern rings
2 - casing wear rings
1 - impeller
(optional: 2 - mechanical seals
2 - impeller wear rings)
6.5 Tools required
A typical range of tools that will be required to
maintain these pumps is listed below.
Readily available in standard tool kits, and dependent
on pump size:
•
Open ended spanners (wrenches) to suit up to
M 48 screws/nuts
•
Socket spanners (wrenches), up to M 48 screws
•
Allen keys, up to 10 mm (A/F)
•
Range of screwdrivers
•
Soft mallet
