TBK – Magnetic drive multistage self-priming centrifugal pumps

The magnetic drive multistage self-priming centrifugal pumps of the TBK series are pumps with star-type impellers.

The magnetic drive multistage self-priming centrifugal pumps of the TBK series are designed according to an innovative design and high quality components. They guarantee high performance and reduced power losses.

The magnetic drive multistage self-priming centrifugal pumps of the TBK series have suction and priming capacity up to 8.5 m.c. of vacuum and allow to pump mixtures of liquids and gases.


  • Impeller: Radial
  • Max flow m³/h: 35
  • Max pressure bar: 16
  • Pumped fluids: Clean and non-abrasive liquids and liquefied gases
  • Self-priming: Yes
  • Stages nr.: 1-8
  • Seal: Magnetic drive
  • ISO: no
  • Low operating speed for extended life, low vibration, low noise level and maximum reliability.
  • No product leakage to atmosphere.
  • No need for expensive control systems and minimal maintenance cost.
  • Arrangement for control of magnetic coupling temperature and pump vibrations.
  • Easy assembly due to the reduced number of components and to the modular design of the magnetic couplings.
  • Internal lubrication with the pumped liquid.
  • Magnetic coupling in SmCo (Samarium – Cobalt).
  • Internal bearing supports are sleeve with bearing in Silicon Carbide.


  • Chemical and petrolchemical processing industries, pharmaceutical industries, food industries and other services.
  • Suitable for pumping of clean, not abrasive, corrosive, toxic, polluting liquids and with bad odors liquids hot or cold.
  • Removal of condensates and distilled liquids.
  • Solvents and liquefied gases applications.
  • Removal of liquid from processes under vacuum.


  • Monoblock mounting to B5 electric motor for best alignment and reduction of the overall dimensions.
  • Cooling or heating of the Magnetic coupling.
  • External bearing housing with oil lubricated ball bearings with possibility of cooling.


  • Suction & discharge casings: UNI 5007-69 Cast iron or Ductile iron – AISI 316 Stainless steel
  • Fly-wheel: UNI 5007-69 Cast iron
  • Casing cover: Carbon steel – AISI 316 Stainless steel
  • Suction & discharge port plates: UNI 5007-69 Cast iron – AISI 316 Stainless steel
  • Primary shaft: AISI 420 Stainless steel
  • Secondary shaft: AISI 420 Stainless steel – AISI 316 Stainless steel
  • Impeller: Brass or Bronze – AISI 316 Stainless steel
  • N.D.E. bearing: Graphite or Silicon carbide
  • Bearing housing N.D.E.: UNI 5007-69 Cast iron – AISI 316 Stainless steel
  • Inner bearings housing: AISI 316 Stainless steel
  • Inner magnetic rotor: AISI 316 Stainless steel
  • Sealing can: Hastelloy C or AISI 316 Stainless steel
  • Bearings: Silicon carbide