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Series
2.15
INSTRUCTIONS
November 2014
Page
ISO
G
USER'S MANUAL – AHLSTAR
Preventive maintenance
COPYRIGHT © SULZER PUMPS FINLAND OY
ORIGINAL INSTRUCTION
Table 2, Dimensioning of stuffing box
524.21
a
d D
Shaft size
Stuffing box
Ø
d x
Ø
D x a (mm)
Total length of the
packing ring (mm)
1
40 x 60 x 10
640
2
50 x 70 x 10
770
3
60 x 85 x 12.5
930
4
70 x 95 x 12.5
1050
5
90 x 122 x 16
1350
6
100 x 132 x 16
1460
7
120 x 152 x 16
1710
1st ring
2nd ring
lantern ring
3rd ring
4th ring
stuffing box gland
Gland packing
Fig. 4
3.2 Mechanical seal
Mechanical seals are normally installed and adjusted at the factory before the delivery. The general principle is that
the mechanical seal does not leak at all. The lifetime of a mechanical seal depends on the cleanliness and
lubricating properties of the pumped liquid and the sealing liquid. If the mechanical seal leaks, stop the pump and
replace the mechanical seal.
C A U T I O N
The dry running of mechanical seals will damage the sliding surfaces and cause leakage of pumped
liquid.