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

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  • Pump body constructed from non-porous bar stock
  • Ingeniously simple pump design with just a few, robust components
  • Central bearing assembly eliminating the need for a plain bearing carrier
  • Use of a single product-lubricated bearing that overcomes the common weak point of conventional pumps
  • Sophisticated bearing lubrication for extra capability to handle difficult applications and high solids concentrations in fluids
  • Vast choice of materials of construction ranging from high-alloy stainless steel, nickel and nickel-base alloys to other special alloys
  • In-line installation for maximum space saving
  • Simple and low-cost installation

SZMK Brochure | Order »
SZMK Fact Sheet


Operation Range
Capacities 0.5 to 4.0 m3/h
Heads 1.4 to 50 m
Pressure rating PN 16
Temperature -100°C to +200°C
Kinematic viscosities 0.5 to 350 mm2/s
Solids handling Depending on the pumped fluid
Casing Material
Stainless steel 1.4404/1.4435 (316L)
Other materials Stainless steel (e.g. 1.4306, Uranus® B6), duplex alloys (e.g. 1.4517),
nickel-base alloys (e.g. Hastelloy® C-4, C-22)
Working Principle
Radial flow pump
Stages Single stage
Priming Method Flooded suction
Sealing System
Magnetic coupling
CP's standard configuration Close-coupled (-100°C to +200°C)
Additional options Vertical, in-line
EC Directives 2006/42/EC (Machinery), 2014/34/EC (ATEX)
Standards DIN EN ISO 2858, 5199 and 15783


Materials of construction

Stainless steel (e.g. 1.4306, Uranus® B6)
Duplex alloys (e.g. 1.4517)
Nickel-base alloys (e.g. Hastelloy® C-4, C-22)
Other materials (rolled bar stock) to meet customer needs

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
Lantern monitoring connection
Gasket materials PTFE
Graphite/stainless steel 1.4401
Graphit/nickel-base alloy 2.4819 (Hastelloy® C-276)
Sigma 511®
Plug seal materials PTFE
Silver-plated nickel

Bearing Assembly

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
Materials Stainless steel
Hastelloy® C
Cont. shell vortex breaker
Containment shell insulation

Pump Protection
Thermocouple On containment shell
Motor load sensor

Type Stand
Materials Steel
Stainless steel
Drip pan


  • Chemical processing:
    basic and fine chemicals
    (agrochemicals, speciality chemicals)
  • Pharmaceuticals
  • Biotechnology processing
  • Food and beverages
  • Pulp and paper


A wide variety, including:

  • Dosing
  • Laboratory applications
  • Refrigeration and heating cycles


Acids, bases, solvents, suspensions, heat transfer liquids and other fluids. For example:

  • Acetone
  • Brine
  • Diphenylmethane diisocyanate
  • Ethylene dichloride
  • Ethylene glycol
  • Hydrogen peroxide
  • Sodium bisulphite
  • Sulphuric acid

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