Logo Schmitt Kreiselpumpen GmbH, Ettlingen
chemical resistant pumps for corrosive and highly pure media
Contact Adviser


Do you have any questions regarding our products? We will be glad to assist you. Our technical hotline can be reached at the following hours: 
Monday through Thursday  8.00 am to 5.00pm
Friday 8.00 am to 3.30 pm

Tel: +49 7243 - 54 53 13

from within Germany: 07243 - 54 53 13
E-mail: sales@schmitt-pumpen.de

Montag bis Donnerstag 8.00 Uhr bis 17.00 Uhr


Normal priming centrifugal pumps: MDN series

The mag-drive MDN pump is dry-run safe due to its ceramical ball bearings and comes with a chemical resistant PVDF housing.

  • Normal priming, magnetically coupled centrifugal pumps
  • Material: PVDF (polyvinylidene fluoride)
  • Hermetically sealed
  • Particularly suitable for high purity applications
  • Max. output rate: 140 l/min
  • Max. discharge head: 14m
  • Motor power: 0.55 KW


In the MDN Pump Series, the motor power is transmitted contact free and abrasion-free with a magnetic coupling through the closed housing wall (“Slot-pot”) to the pump impeller. An encapsulated counter-magnet is built-inside the impeller. Therefore, a rigid shaft passage is not necessary.

Advantages of the MDN Pump Series:

  • dry run safe
  • hermetically sealed, absolutely leak-proof
  • highest chemical resistance 
  • robust design
  • low-maintenance through double ceramic ball bearings
  • long-lasting and wear-resistant through axial thrust compensation
  • self-cooling design for the operation under demanding conditions
  • no abrasion into the medium to be pumped (high purity applications) 
  • negative pressure tight for vacuum systems
  • no metal parts are in contact with the medium  
  • easy to maintain (wear parts can be changed swiftly)
  • universally applicable, quiet and compact

The MDN Pump Series is particularly suitable for toxic or environmentally hazardous media. A small amount of gas in the liquid can also be transferred without disrupting the liquid flow.

This results in application possibilities, amongst others, for the following application fields:

  • Electro-plating technology
  • Wastewater treatment
  • Laboratory and medical engineering
  • Wafer production
  • Printed circuit board (PCB) manufacturing
  • Solar cell production
  • Analytical instruments
  • Semiconductor technology
  • Zoological seawater aquaria
  • Environmental technology
  • Wastewater treatment plant dosage


Materials and Components:

  • Parts in contact with the medium are made solid of PVDF, (up to +60° C)
  • Housing seal alternatively made of FKM, EPDM, FEP or Kalrez®
  • Ball bearings made of SiC
  • High-quality electric motors made in Germany 

Material details:

  • PVDF: Polyvinylidene Fluoride, Pure, milky white, not colored (up to +95° C)
  • FKM: Viton® quality, -20...+200° C
  • EPDM: Ethylene propylene diene M-class rubber, Food-safe (FDA, KTW, WRC), -40...+160° C
  • FEP: Fluorinated ethylene propylene with Viton® or silicone core, -60…+200° C
  • Kalrez ®: High performance elastomere up to +315° C 
  • SiC: Silicon carbide, without free silicon, sintered

Motor Details

  • Standard Motors (stock items):
    • Three-phase motors: 230/400 V 3ph, 50 Hz, IP 55, insulation-class F or 277/480 V 60 Hz also with PTC thermistor
    • Alternating current motors: 230 V 1ph, 50/60 Hz, IP 55, Insulation class F
    • Three-phase motors: spark arrested for combustible environments, explosion proof: EEx e II T3
  • Special design models (available):
    • Three-phase motors, explosion proof, flameproof enclosure, EEx de II CT4
    • Special voltages and frequencies
    • 2-, 4- and 8-pole
    • UL and CSA execution
    • Special protection types (e.g. IP 65)
    • High temperature designs
    • Special insulation classes (e.g. tropical insulations)
    • Multi area voltage (e.g. 220-290 / 380-500 V 50 Hz; 220-332 / 380-575 V 60 Hz.)
    • Additional designs upon request

Performance Data

MDN 130 Pump Series

Max. output rate: 140 l/min

Max. discharge head: 14 m

Motor Power: 0.55 kW


Download Leaflet and Operating Manual

Pump Selection Form