Magnetic drive regenerative turbine pumps made in thermoplastic materials suitable to be used in a potentially explosive atmosphere classified ZONE 2 II3G

Anti-corrosion industrial pumps suitable for pumping acids and bases fluids and highly corrosive liquids

  • Materials available: PP/PVDF;
  • Materials in contact with the liquid:
    casing and rear casing: PP/PVDF; Impeller: PVDF;
    o-ring: EPDM (standard for PP pumps);
    VITON (standard for PVDF pumps);
    shaft: Al203 99,7%;
    bearing: PTFEC.
  • Max flow: 9 m3/h; Max head 50 mlc.
  • Temperature: PP: max 70°C – PVDF: max 90°C.
  • Max viscosity: 40 cPs.
  • Pressure rating: NP 6.
  • It handles up to 20% entrained gas.
  • HTT pump resists cavitation.

Mag drive regenerative turbine pumps series EM-T PP/PVDF are made of thermoplastic materials (polypropylene-PP and PVDF) and are suitable for pumping high corrosive liquids. Thanks to the innovative mag drive system, pumps model EM-T PP/PVDF reduce risks of leakage and emissions and the maintenance costs. The transmission of the motion occurs through magnetic joints without any mechanical seal. This sealless design guarantees the maximum safety and efficiency. The pumped liquid has to be clean and without solids in suspension.


* The head and flow of the pump refer to the performance with water at room temperature. Should liquids at high temperatures and with high viscosity and density be pumped the performance has to be calculated accordingly. The electric motor should be selected on the basis of the viscosity and the specific weight given by the customer.

* For any  information and quotation you can fill in the online form or send an email to info@gemmecotti.com. Our commercial office will select the pump suitable for your needs.


Magnetic drive pumps are designed with a special sealless configuration that is suitable for transferring acids, chemicals, corrosive and dangerous liquids thanks to the high chemical resistance of their construction materials and to the absence of leakage and emissions. The structure is really simple and it requires very little maintenance with consequent saving in terms of repairing, spare parts and machine downtime (costs during the pump life).  This type of pump is not suitable for transferring liquids with solids. Liquid must necessarily be clean and free of suspended solids (max presence of solid admitted: max 2% – max 1mm).
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On request GemmeCotti provides DIN e ANSI flanges for thermoplastic pumps (cartella + free flanges) and welded DIN o ANSI  flanges for pumps in AISI 316.

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GemmeCotti baseplates are suitable for pump completed with motor with B3/B5 configuration. They allow the correct positioning of the pump.

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We recommended the use of the dry-running protection device for all the applications where the constant presence of liquid in the pump is not always  ensured.

More informations about dry-running device