KWP
3.1.2.6
Instructions for stuffing box packing
arrangement
An instruction plate depicting the required packing arrangement
in the picture form is rivetted on the bearing bracket lantern.
Form A : Indicates the packing arrangement without spacer
ring, while form B is with the spacer ring.
Significance of the numbers punched on this instruction plate
is as follows
X
X
X
No. of packing rings before
Lantern ring, in this case 2
No. of Lantern rings.
In this case - indicates no
lantern ring but 2 packings
No. of packing after Lantern
ring. In this case 3
3.1.3
Priming the pump
Before start-up, the pump and the positive suction head line,
or the suction lift line respectively, must be completely primed
with the fluid pumped.
Positive suction head operation: Open the isolating valve
in the suction line and vent the pump.
Suction lift operation: Open valve in suction lift line and
evacuate the pump and the suction lift line, or prime pump
and suction lift line via priming tundish, if a foot valve is
installed.
Check the shaft seal while the pump is stopped.
It must be possible to rotate the pump rotor by hand without
effort.
If applicable to your installation, open valves in the sealing /
flushing lines fully and check the flow of fluid. Open the main
isolating valve in the vacuum balance line if applicable). If
your pump is fitted with a mechanical seal, please follow the
instructions of the seal manufacturer.
3.1.4
Checking direction of rotation
Check operating voltage of motor. Check direction of motor rotation
by switching it on for a short instant with the coupling disconnected.
It must correspond to the directional arrow on the bearing bracket
and on the pump casing (clockwise viewed from drive end).
3.2
Start-up
Switch pump on with the discharge valve closed. Only after
the pump has attained full operating speed should the total
head indicated in the data plate be adjusted by opening the
discharge valve (watch the pressure gauge on the discharge
flange), Only switch on the pump when it is completely stopped.
Always use the discharge valve (never the suction valve) to
adjust the rate of flow.
Note : When the operating temperature has been attained,
nuts 920.1 (connection between distance piece flange and
casing) should be tightened. If leakage is observed change/
check the gasket.
Bearing
Bracket
Pump
size
Q
ty. wi
th
Lant
ern ring
Qt
y
. w
it
hout
Lant
ern ring
di
φ
da
φ
l1
P
a
cki
n
g
si
ze
i
n
mm
65-200
80-250
P45/120 65-315
55
75
64
10
100-400
150-315
P65/160d 125-500
80
105
79
12.5
70
95
79
12.5
45
65
64
10
P55/140
P35/80
4
6
Table 2 (Dimensions in mm)
3.1.2.5
Alternate packing arrangements
available
1. Standard packing arrangement - I
2. Packing arrangement
- II
Note : Arrangement, neck ring, Spacer ring, seal cage ring, 3 packings
Rate of flow : Flushing liquid : 20-50 l/min.
3. Packing arrangement
- III
(11E2)
(10A1)
(10E1)
(10A1)
(10E1)
4
