CP PUMPEN AG, Im Brühl, 4800 Zofingen, Switzerland
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ZMP – Stainless Steel Mechanical Seal Chemical Process
Grinder Pump

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  • Five functions in a single pass: grinding, chopping, macerating, mixing and pumping
  • Extremely robust construction
  • Ideal for pumping fluids with solids concentrations up to 40%
  • Customised casing liners available to reduce solids to the required size
  • Pressure rating up to PN 16 for a wide range of applications

ZMP BrochureOrder »
ZMP Fact Sheet


Operation Range
Capacities 0.5 to 220 m3/h
Heads 2 to 14 m
Pressure rating PN 10
Temperatures -20°C to +180°C
Kinematic viscosities 0.5 to 1000 mm2/s
Solids handling Highly suitable because of the abrasion-resistant pump chamber
Casing Materials
Stainless steel 1.4581 (~316Ti)
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), nickel (e.g. 2.4170),
titanium (Grades 2, 5 and 7)
Working Principle
Radial flow pump
Stages Single stage
Priming Method
Flooded suction
Sealing System
Double mechanical seal
Single mechanical seal
EN standard configuration Frame-mounted (-20°C to +180°C)
Mounting arrangement Horizontal
EC Directives
2006/42/EC (Machinery), 2014/34/EC (ATEX)
Standards DIN EN ISO 5199

Zusätzliche Optionen

Materials of construction Stainless steel (e.g. 1.4306, Uranus® B6)
Duplex alloys (e.g. 1.4517)
Nickel (e.g. 2.4170) and nickel-base alloys (e.g. Hastelloy® C-4, C-22)
Titanium (Grades 2, 5 and 7)
Connection flanges To EN 1092-1
Drilled to ANSI/ASME B16.5
Additional connections Casing drain (with or without flange)
Manometer connection on the casing
Mechanical seal housing drain/vent
Gasket materials PTFE-enveloped
Gylon® blue
Plug seal material PTFE
Casing liner With holes
With slots

Mechanical Seal
Double mechanical seal Standard commercially available
Single mechanical seal Standard commercially available
Gland packing

Double Mechanical Seal Barrier/Buffer Fluid Vessel
Vessel Cooling coil, manometer, thermometer and sight glass
Total volume from 3 to 12 l (depending on vessel type)
Hand refill pump (depending on vessel type)
Vessel connections Stainless steel braided PTFE hose
Stainless steel piping
Bracket Steel
Stainless steel

Pump Protection
Barrier/buffer fluid monitoring Level switch
Pressure switch
Temperature probe
Motor load sensor

Type Baseplate
Materials Steel
Stainless steel
Drip pan

Bearing Frame
Lubrication Grease lubrication
Coupling guard Steel

Range Curves

Range Curves

ZMP Range Curves 50 Hz
ZMP Range Curves 60 Hz
Dimension Drawings

Dimension Drawings



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


A wide variety, including:

  • Carbide sludge treatment
  • Granule grinding
  • Recycling
  • Slaughterhouse residue processing


Multiphase media, such as:

  • Adhesives
  • Bitumen
  • Carbide sludge
  • Granulated plastics
  • Pigments
  • Sewage sludge

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