MKP-S – Stainless Steel Self-Priming Magnetic Drive Chemical Process Pump

Discover the benefits of the MKP-S produced by CP here – The self-priming centrifugal pump.

Find out more about our MKP pump in our animation.


Special features

  • Suction tank integrated in the casing (=high operating safety).
  • Self-priming with a suction head of up to 8.5 m.
  • Suitable for efficient unloading of tanks (tanker trucks) with no outlet on the tanker floor.
  • Up to 30% solids concentration and 1 mm particle size can be pumped – depending on the nature of the particles.*


  • Compact & virtually free of dead space
  • No shaft feedthrough & leak-free
  • Single-part & central bearing
  • Low bearing forces due to hydraulically balanced impeller
  • Internal & external bearing lubrication options
  • High material flexibility
  • Eddy-current-free shroud possible (=> reduced energy consumption)
  • Inverted drive principle
  • Single-stage centrifugal pump


  • Heating possible

Assembly & repair

  • Modular system made up of few individual parts
  • Assembly friendly

*In general, media with solids content can be transported, but application-specific verification in advance is necessary.

Technical data

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Capacities Arrow Black

SI: 1 to 80 m³/h
US: 2.2 to 325.2 gpm

Heads Arrow Black

SI: 5 to 60 m
US: 16.4 to 196.9 ft

Pressure ratings Arrow Black

PN 16

Temperatures Arrow Black

SI: -100 to +250°C
US: -148 to 482°F

Kinematic viscosities Arrow Black

SI: 0.5 to 350 mm²/s
US: 0.5 to 350 cSt

Solids handling Arrow Black

Up to 30% solids concentration and 1 mm particle size, depending on the pumped fluid*

Casing Materials Arrow Black

Stainless steel 1.4581 (316Nb)*
Stainless steel (e.g. 1.4306, Uranus® B6)*
Duplex alloys (e.g. 1.4517)
Nickel-base alloys (e.g. Hastelloy® C-4, C-22)*
Nickel (e.g. 2.4170)
Titanium alloys

* Also available for casing with heating chamber

Working Principle Arrow Black

Radial flow pump

Priming Method Arrow Black


Sealing System Arrow Black

Magnetic coupling

Configuration types Arrow Black

CP standard: Close-coupled (SI: -100 to +250°C/US: -148 to +482°F)
EN standard:
Bearing-frame (SI: -100 to +250°C/US: -148 to +482°F)

Directives Arrow Black

EC Machinery Directive
EC ATEX Directive

Standards Arrow Black

DIN EN ISO 5199, 15783

Casing Arrow Black

Connection flanges
To EN 1092-1
Drilled to ANSI/ASME B16.5

Additional connections
Casing drain (with or without flange)
External flush connection for bearing lubrication and/or flushing and cooling the magnet assembly
Manometer connection on the casing
Lantern monitoring connection

Gasket materials
Pure graphite

Plug seal materials
Silver-plated nickel

Bearing Assembly Arrow Black

SSiC (sintered silicon carbide)
SSiC with graphite
SSiC with diamond-like coating (ADLC)
SSiC mit FuturaSafe®
Nickel-bound tungsten carbide
Nickel-bound tungsten carbide with diamond-like coating (ADLC)

Containment Shell Arrow Black

With Vortex breaker

Stainless steel
Hastelloy® C
Heavy-duty plastic (eliminating eddy current losses)
Zirconia ceramic (eliminating eddy current losses)

Pump Protection Arrow Black

Containment shell temperature monitoring
Pt100 temperature probe
Engine load sensor

Mounts Arrow Black

Stilt support plate

Stainless steel

Drip pan
Grounding lugs

Bearing Frame Arrow Black

Oil lubrication
Grease lubrication

Oil lubrication options
Hermetic seal (MagTecta OM™)
Constant level oiler


Coupling guard