Flowserve FP User Manual
Page 25
FP USER INSTRUCTIONS ENGLISH 71576286 - 02/13
Page 25 of 40
6.2.5 Gland packing
6.2.5.1 Pump fitted with a packed gland
A well run in and correctly adjusted packing gland
requires little maintenance.
If, after some time, the leakage becomes too great,
the gland should be tightened again in order to
return these to a normal level.
If re-tightening is not possible, new packing must be
installed
6.2.5.2 Gland packing inspection and removal
a) Remove the shield guards.
b) Slide back the gland.
c) Remove the packing rings with an extractor
designed for this purpose (including the lantern
ring if it exists; note its position and its direction
of rotation).
d) Inspect the state of the sleeve surface; the
presence of many marked grooves will indicate
that it must be replaced.
e) Carefully clean the different pieces of the
packing gland.
6.2.5.3 Gland packing fitting
If the packing is supplied as cord the packing must
be cut so that the external diameter is lightly
tightened and there is an initial gap between the
sleeve and the packing ring.
For that purpose, wind the packing helically around
the shaft sleeve or a chuck of the same diameter.
(Take precautions to avoid damaging sleeve)
Example of straight
Example of bevel cut
Ensure a tightening on the stuffing
box housing and not on the sleeve.
SETTING OF PACKING
Follow the instructions:
a) Assemble of the packing in S.
b) Stagger by about 90° between two rings.
c) Assemble packing after packing.
After setting the last packing ring, secure the
packing with the gland and tighten the nut by hand.
After tightening, the shaft should turn by hand as
easily as before the setting of the packing.
PUMP
TYPE
DIMENSIONS IN MILLIMETERS
PACKING
D1
D2
D3
D4
D5
L1
Lgth
50 FP
24
30
46
70
M10
48
600
8
65 FP
24
30
46
70
M10
48
600
8
80 FP
32
40
60
86
M12
63
800
10
100 FP
32
40
60
86
M12
63
800
10
122 FP
45
55
75
100 M12
45
850
10
125 FP
40
50
70
96
M12
60
1000
10
152 FP
55
70
95
135 M12
78
1100
12
202 FP
65
80
109
150 M16
91
1200
14
For arrangement of packing, see section 8.1,
Sectional drawings.