Flowserve Mark 3 ISO Durco - Manual (Page 24)

DURCO MARK 3 ISO CLOSE COUPLED ENGLISH 26999985 02-14
Page 24 of 32
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6.11.2c Single seal with external lip seal variants
1) Self-setting collar.
2) Separate seal drive collar set to dimension 'X'.
3) Integral seal drive collar with screws set to
dimension 'X’.'
L1K and L1N are seal lengths defined within seal
standard EN 12757.
Setting dimension (mm)
Pump size Stub shaft Ø 35 Stub shaft Ø 45
X Y Z X Y Z
125 25.5 13 50 - - -
160 25.5 13 50 36 21 68
65-160 25.5 13 50 36 21 68
100-160 25.5 13 50 36 21 68
200 25.5 13 50 36 21 68
250 - - - 36 21 68
315 - - - 36 21 68
6.11.3 Double seal types
6.11.3a Double back-to-back seal with Flowserve
eccentric pumping annulus circulation (limited to
a short T2100 outboard and a EN 12757 'K' type
rubber bellow seal inboard)
BO - Rp ¼ in. barrier liquid outlet
BI - Rp ¼ in. barrier liquid inlet
6.11.4 Cartridge seal types
6.11.4a Compact dual or gas buffer/barrier
cartridge seal
Stub shaft A Stub shaft B
A 35 mm 45 mm
B 61.5 mm 73 mm
C 81 mm +0.0/-0.05 mm 97 mm +0.0/-0.05 mm
D 55 mm 60 mm
E 34 mm 34 mm
F M 10 M 12
G 98 mm 117 mm
H 130 mm 164 mm
6.11.4b Compact cartridge seal
Stub shaft A B B option C D E F G H max J
A 35 mm 62 mm -0.05/+0.0 mm 51 mm -0.0/+0.2 mm 54 mm 33 mm 33 mm M 10 86 mm 130 mm 76 mm
B & C 45 mm 74 mm -0.05/+0.0 mm 70 mm -0.0/+0.2 mm 60 mm 36.5 mm 39.5 mm M 12 100 mm 164 mm 86 mm