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chemical resistant pumps for corrosive and highly pure media
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Pumpadvisory

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

Description

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

Types

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

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