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1
2
3
i.
Flush connection
ii.
Packing rings
iii.
Lantern ring
Figure 43: Full flush setting (L5)
For full flush setting
(1L4)
:
a) One packing ring (106)
b) One lantern ring (105)
c)
Four packing rings (106)
1
2
3 2
i.
Flush connection
ii.
Packing rings
iii.
Lantern ring
Figure 44: Full flush setting (1L4)
4.
Install the gland halves and evenly hand-tighten the nuts .
NOTICE:
Do not overtighten gland nuts. Overtightened packing causes excessive friction between pack-
ing and sleeve and will result in damaged components.
Table 13: Flush water requirements
The flush water requirements are listed for both the weep style and full flush packing arrangements.
Group
Size
(L5) Full Flush
GPM (liters/min)
Full Flush (1L4)
GPM (litres/min)
(2L3) Weep
Flush GPM (lit-
ers/min)
Mechanical Seal
Flush
PF1
XHD50,75
10 (38)
6 (26)
0.2 (0.8)
Consult Seal Mfg
PF2
XHD80
15 (57)
10 (38)
0.3 (1.1)
PF3
XHD125
23 (87)
18 (68)
0.6 (2.3)
PF4, PF4S
XHD150,200
37 (140)
32 (121)
1.1 (4.2)
PF5
XHD250,300
61 (231)
56 (212)
2.2 (8.3)
5.11 Shaft-sealing options
XHD Installation, Operation, and Maintenance Manual
67
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