1 Discharge cover with integrally cast
stuffing box housing (casing
variant 2), material variants: GN,
GC
2
, C
2
2 Discharge cover with bolted-on
stuffing box housing (casing
variant 3), material variants: GH, H
3 For mechanical seal: discharge
cover with conical seal chamber (A-
type cover), material variants: GN,
GC
2
, C
2
, GH, H
Impeller t y p e
▪ Various, application-based impeller types (⇨ Section 2.3 Page 8)
▪ Back vanes reduce axial thrust.
Bearings
▪ Oil-lubricated rolling element bearings
▪ Back pull-out bearing bracket with axially adjustable rotor to adjust the
clearance between impeller and wear plate.
Table 8: Standard bearing assembly
Bearing bracket Rolling element bearings
Pump end
4)
Motor end
5)
P03ax NU 409 2 x 7309 BG
P04ax NU 411 2 x 7311 BG
P05ax NU 413 2 x 7313 BG
P06x NU 413 2 x 7313 BG
P08sx NU 416 2 x 7319 BG
P10ax NU 324 2 x 7224 BG
P12sx NU 324 2 x 7224 BG
Refer to the data sheet to find your bearing design.
Shaft sea l
▪ Shaft fitted with a replaceable shaft protecting sleeve in the shaft seal area
▪ Gland packing
Design specifications
Bearings used
4)
To DIN 5412
5)
To DIN 628
4 Description of the Pump (Set)
18 of 78
KWP
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