SZMK - Stainless Steel Magnetic Drive In-Line Chemical Process Pump

Discover the benefits of the SZMK produced by CP here - The space-saving in-line centrifugal pump.

Find out more about our MKP pump in our animation.


Special features

  • Dirt-resistant open impeller
  • Good drainability


  • Compact & virtually free of dead space
  • No shaft feedthrough & leak-free
  • Single-part & central bearing
  • In-line installation for optimal use of space
  • Pump body made of non-porous bar stock
  • No plain bearing carrier
  • Using a single product-lubricated bearing eliminates common weak point on conventional pumps
  • Sophisticated bearing flushing offers reserves for difficult applications and high solids concentration in fluids
  • Low bearing forces due to hydraulically balanced impeller
  • Solids possible*
  • Single-stage centrifugal pump

Assembly & repair

  • Modular system made up of few individual parts
  • Assembly friendly
  • Simple & low-cost installation

*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: 0.5 to 40 m³/h
US: 2.2 to 176.1 gpm

Heads Arrow Black

SI: 1.4 to 22 m
US: 4.6 to 72.2 ft

Pressure rating Arrow Black

PN 16

Temperatures Arrow Black

SI: -100 to +200°C
US: -148 to +392°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 concentation and 1 mm particle size, depending on the pumped fluid

Casing Material Arrow Black

Stainless steel 1.4404/1.4435 (316L)

Working Principle Arrow Black

Radial flow pump

Priming Method Arrow Black

Flooded suction

Sealing System Arrow Black

Magnetic coupling

Configuration types Arrow Black

CP standard: Close-coupled (SI: -100 to +200 °C/ US: -148 to +392°F)

EC 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
External flush connection for bearing lubrication
Lantern monitoring connection

Gasket materials
pure Graphite
Sigma 511®/NT-CHEM-beige®

Plug seal materials
Silver-plated nickel

Bearing Assembly Arrow Black

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

Containment Shell Arrow Black

Stainless steel
Hastelloy® C

Pump Protection Arrow Black

Containment shell temperature monitoring
Engine load sensor

Mounts Arrow Black


Stainless steel

Drip pan
Grounding lugs