KSB-CPKN-Standardized chemical pumps


KSB-CPKN-Standardized chemical pump with reinforced bearing bracket


Horizontal, radially split volute casing pump in back pull-out design to EN 22 858 / ISO 2858 / ISO 5199, single-stage, single-entry, with radial impeller. Also available as variant with “wet” shaft, conical seal chamber, heatable volute casing (CPKNO-CHs) and/or semi-open impeller (CPKNO). Design to ATEX.


Handling of aggressive liquids in the chemical and petrochemical industries as well as in refinery and fire-fighting systems, handling of brine.

type-series-booklet-cpkn-140566_2bOverview of technical data

Type of bearing Rolling element bearings
Casing partition Radially split
Drive frequency 50 Hz / 60 Hz
Type of drive Electric motor
Drive voltage Low voltage
No. of impeller entries Single entry
Heatable Yes
Impeller material (EN standard) NORIDUR 1. 4593;JL 1040;1.4408
Type of installation Long- coupled
Type of coupling Direct
Type of lubrication Oil lubrication
Max. permissible fluid temperature 400 °C
Nozzle position End suction
Maximum rated pressure (discharge) PN 25
Pull-out design Yes
Pump set location Dry installed
Shaft material (EN standard) 1. 4462;1.5680;C 45+N;1.7709
Standard ISO 5199; ISO 2858;EN 22858
Suction characteristics Non- priming
Type of casing Volute casing
Type of impeller Closed; Radial
Type of connection Flange
Casing material (EN standard) NORIDUR 1. 4593;1.4408;JS 1025;GP240GH+N
eClass assignment 36410000; 36410100;36410101
Maximum head 275, 00 m
Minimum head 2, 00 m
Installation position Horizontal
Shaft seal type Mechanical seal
Main applications Energy; Industry and process engineering
Casing material Cast stainless steel; Ni-Resist;Cast duplex steel;Cast steel;Nodular cast iron
Maximum discharge-side pressure 25 bar
Maximum drive rating 3. 200 kW
Type of installation 00
Maximum flow rate 4. 800 m³/h
Minimum flow rate 1 m³/h
Maximum speed of rotation 3. 500 1/min


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