4.
OPTIONS
IOM manual CTI & CTH centrifugal pumps
29
4.2.
Flushed seal – 4F (API Plan 11)
When abrasive or sticky particles are present, it’s
recommended to use a flushed seal system. A small amount of
the pumped product is recirculated from the discharge side to
the seal chamber to flush solids cumulated in it. It helps to save
mechanical seal (15) and back casing (12) from being worn. In
addition a self-cleaning filter is used at the discharge.
Flushed seal pipe work is fully demountable. To disassemble
self-cleaning filter for removal of collected “big” particles or
routine inspections, remove upper flange and then disassemble the filter. To provide easy
disassembly the flushing steel pipe line is fixed with gas fittings.
Additional / different parts:
Available for pump sizes: C, D and E
Art. no
Q-ty
Description
5-xxx-1146
1
Pump back cover for flushed seal
5-xxx-126
1
Pump back casing with welded seal chamber
5-xxx-136
1
Pump cover for flushed seal
5-xxx-1361
1
Strainer
5-xxx-1363
1
Metal pipe
5-xxx-1364
1
Connection adaptor
5-xxx-1365
1
Adaptor O-ring
5-xxx-1366
1
Straight union
5-xxx-1367
1
Elbow union
5-xxx-16Z
1
Shaft
