HTM PP/PVDF – Magnetic drive centrifugal pumps in thermoplastic materials

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HTM PP/PVDF pumps are magnetic drive centrifugal pumps made of thermoplastic materials (Polypropylene and PVDF) suitable to transfer acids and corrosive liquids. These pumps have been designed with a sealless design where the pump is closed coupled to the motor and the motion occurs through magnetic joints. The external magnet, in fact, is mounted on the drive shaft and it transmits the motion from the motor to the internal magnet connected to the pump impeller which rotates and moves the fluid through the pump. It is the magnetic attraction between the external magnet and the internal magnet which allows the full torque of the motor to be passed to the impeller. The two magnets are separated by a rear casing that creates a hermetic containment of the liquid which has no access to the outside, thereby preventing any leakage of fluid or other fugitive dangerous emissions. Magnetic pumps require minimum maintenance with consequent save in terms of repairing and spare parts costs.


  • Materials available: PP/PVDF
  • Materials in contact with the liquid:
    – Pump head and impeller: PP or PVDF
    – O-ring: EPDM (standard for PP pumps) VITON (standard for PVDF pumps)
    – Static shaft: Al2O3 99,7%
    – Bushing: PTFEC
  • Flow range: from 0,5 to 130 m3/h (3-528 usgpm @ 60hz)
  • Maximum head: 48 mlc (160ft @ 60 Hz)
  • Maximum temperature: 60-70°C for PP and 90°C for PVDF
  • Maximum viscosity: 200 cSt
  • Pressure rating: NP 6 at 20°C
  • High-torque magnetic coupling NdFeB standard
  • Standard BSP gas threaded In and Out connections. NPT connections upon request
  • Direct starting motor


  • DIN or ANSI 150 Flanges (included for model HTM80 and HTM 100)
  • Dry-running protection device
  • Baseplate
  • HTM pumps are available also for NEMA motors and with NPT connections
  • Available in ATEX version for zone 2 II3G (mod. EM-C PP/PVDF)



Magnetic drive centrifugal pumps model HTM PP/PVDF are suitable to pump acids and highly corrosive liquids used in chemical industries, laboratories, biotechnology, pharmaceutical, metal finishing machines, PCB printed circuit boards, petrochemical industries, textile industries, loading/unloading of tank trucks, graphics, heat exchangers, aquariums, water treatment plants, filter units, galvanic industry, military industries, dairies, packaging industries and many more. These sealless pumps can easily handle acids without any problem of chemical corrosion such as for example: acetic acid, alcohol ethyl, ammonia, detergents, hydrochloric acid, hydrofluoric acid, phosphoric acid, sea water, sodium chloride, sodium hydroxide, sodium hypochlorite, sulfuric acid. Download the chemical compatibility chart for further information.