Main applications cpkn

  • Advanced treatment / 3.stage
  • Auxiliary Systems
  • Biofuels
  • Breweries
  • Chemical industry
  • Desalination
  • District heating
  • Energy
  • Food and beverages
  • Industry engineering

Main applications cpkn

  • Nuclear Power Stations
  • Oil /Gas
  • Petrochemical Industry
  • Pipelines and Tanks
  • Sewage treatment plants
  • Sugar
  • Waste water
  • Water
  • Water treatment
  • Watertreatment

Design cpkn

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

Application pump cpkn

Pumping aggressive liquids in the chemical and petrochemical industries, refinery systems, fire-fighting systems and for brine transport.

Fields of Application cpkn

For handling aggressive organic and inorganic fluids in the chemical and petrochemical industries.

They are also used in:

refinery off-sites, the paper and cellulose industries, the foodstuffs industry, the sugar industry, sea water desalination plants, absorption equipment in environmental engineering, power stations, etc.

Desing Details pump cpkn ksb


Radially split, consisting of volute casing (on CPKN-S with casing wear ring) and casing cover.

Double volute depending on pump size.

The casing cover and the bearing bracket lantern form a chamber which can be used for heating or cooling with superheated steam or water,  respectively (except for pump design with conical seal chamber).


Axial thrust is balanced by back vanes, for impeller diameters
> 500 with sealing clearance on both sides.

Shaft Seal

The shaft seal can be designed as a gland packing or a mechanical seal.

Conversion from gland packing to single-acting mechanical seal and vice versa is possiblewithout any rework on the casing cover by using the relevant replacement parts.

The pumps use proprietary single or double seals. Preference is given to standardised mechanical seals of various makes to EN 12756 (type of construction L1K).

Single-acting mechanical seals can be fed with quenching media. A throttling bush, shaft seal ring or secondary mechanical seal can be fitted as outboard seal.

Overview of technical data cpkn ksb

Q (50Hz)0.0 – 53.0 (m³/h)
H (50Hz)0.0 – 52.0 (m)
Casing material (EN standard)EN-GJL-250, CC491K-GS
eClass assignment00000000
Free passage12.0 (mm)
Installation positionHorizontal
Shaft seal typeMechanical seal
Main applicationsIndustry and process engineering, Water, Energy, Building services, Shipping / Shipbuilding
Casing materialCast iron, Bronze
Maximum discharge-side pressure10.0 (bar)
Maximum drive rating7.5 (kW)
Type of installationTransportable
Maximum speed of rotation3600.0 (1/min)