
DURCO MARK 3 ISO FRAME MOUNTED ENGLISH 85392719 12-14
Page 34 of 52 flowserve.com
Single seal with external lip seal 6.11.1.4
NB: Lever flange away after fitting hard sleeve to shaft.
Setting dimension mm (in.)
Setting dimension Z mm (in.)
Single internal seal with internal and 6.11.1.5
external neck bush
Setting dimension mm (in.)
6.11.2 Cartridge seal types
Cartridge seal in Seal Sentry conical cover 6.11.2.1
Hooked sleeve' cartridge seal 6.11.2.2
For S see seal supplier's instructions
6.11.3 Tandem seal types
Tandem seal with Flowserve eccentric 6.11.3.1
pumping annulus circulation
Setting dimension mm (in.)
Q - Rp ¼ in. quench
D - Rp ¼ in. drain
F - Rp ¼ in. flush
Z - Position of lip seal hard sleeve
Q - Rp ¼ in. quench
D - Rp ¼ in. drain
F - Rp ¼ in. flush
BI - Rp ¼ in. barrier liquid inlet
BO - Rp ¼ in. barrier liquid outlet
F - Rp ¼ in. flush
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