Magnetically driven pumps

Corrosion resistant magnetic drive horizontal pumps. Available in plastic or metal. Thanks to a magnetic coupling drive and the lack of dynamic seals, these chemical pumps reduce the risk of external leakage to the minimum. For pumping highly aggressive acids and very hazardous toxic substances. Operation limit: the pumped liquid must be clean and without suspensions.

Plastic mag-drive pumps


  • Maximum flow-rate: 135 m³/h.
  • Maximum head: 48 m w.c.
  • For hazardous chemical fluids.
  • Plastic material: PP, PVDF.

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Metal mag-drive pumps


  • Maximum flow-rate: 30 m³/h.
  • Maximum head: 24 m w.c.
  • ATEX version Zone 1 and Zone 2.
  • Materials: AISI 316, Hastelloy, Titanio.

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General technical features

  • Materials: PP, PVDF, AISI 316.
  • With high resistance to chemical aggression.
  • Only for clean corrosive liquids with no solids.
  • Corrosion resistant plastic encapsulated magnets.



BM series magnetic plastic pumps

Q max m³/h H max m w.c. kW ATEX version Material
BM04 3.5 7 0.12 Atex zone 2 PP – PVDF
BM06 6.5 8 0.25 Atex zone 2 PP – PVDF
BM10 13 12 0.55 Atex zone 2 PP – PVDF
BM15 23 19 1.1 – 1.5 Atex zone 2 PP – PVDF
BM31 30 24 2.2 – 3 Atex zone 2 PP – PVDF
BM40 42  30  3 – 4 Atex zone 2 PP – PVDF
BM50 42  33 5.5 – 7.5 Atex zone 2 PP – PVDF
BM80 92  39  7.5 → 22 Upon request PP – PVDF
BM100 135 48  7.5 → 22 Upon request PP – PVDF

More details on magnetic drive pumps.

BM series magnetic metal pumps

Q max m³/h H max m w.c. kW ATEX version Material
BM06 6 8.5 0.25 Atex Zone 1 and Zone 2 AISI 316
BM10 12 11 0.55 Atex Zone 1 and Zone 2 AISI 316
BM15 22 19 1.1 Atex Zone 1 and Zone 2 AISI 316
BM31 30 24 2.2 Atex Zone 1 and Zone 2 AISI 316

More details on metal magnetic drive pumps.

index Catalog for BM series magnetic drive pumps
index Performance curves for magnetic drive pumps

Sealless mag drive system

Magnetically driven pumps feature high torque magnet coupling consisting in two elements: the first element
is keyed on the pump shaft (outer magnet) while the second one is incorporated in the impeller (inner magnet).
Thanks to the developed magnetic field, the drive magnet transmits the motion to the driven magnet connected
to the impeller which rotates and, consequently, moves the fluid through the pump. The combined coupling
torque of these two magnets (namely the magnetic coupling) provides the driving power to pump the liquid.
The two permanent magnets, however, don’t come into contact with each other: in this area, adheriing to the
pump, there is a containment canister with corrosion resistant plastic covering. This way the liquid in the pump chamber is fully isolated from the atmosphere. Due to this leak-proof design, magnetic coupled pumps have two rotating shafts: the motor shaft does not extend inside of the pump casing so there’s no need for a shaft seal. Consequently, hazardous leakage is automatically ruled-out. These are the main reasons why magnetic pumps have been increasingly widespread: as they have no mechanical seal (and all leakage connected to it) they are considered like hermetically sealed and safe pumps. Naturally, hermetic pumps are the impossible dream of every user. However, one cannot forget that magnetically coupled pumps are especially receptive to very heavy-duty conditions. Before choosing magnetic drive system to other systems, it is necessary to carefully compare the undeniable advantages with the possible disadvantages. For this evaluation we recommend reading this document:


Mechanical seal or magnetic coupling?

The choice between pumps with mechanical seal and sealless mag-drive pumps may be misled by incorrect
installation habits. For example, we are sometimes asked to provide magnetically coupled pumps not compatible
with applications requiring a leake-free pumpage: those who prefer the magnetic coupling can in fact presume that the transmission through magnetic joint is a safer system compared to the mechanical seal. Howerver, if on one hand the mechanical seal is more easily subject to leakage, on the other hand the supposed leak-free design of permanent magnets must be taken into consideration because it can become a problem for the nature of some liquids. To make a calculated technical choice, we invite you to read this section:

icona-tenute-meccaniche Pros and cons of sealed pumps and sealless magnetic pumps

Supplied industries

  • Chemical and petrolchemical industry.
  • Pharmaceutical industry.
  • Paper and textile industries.
  • Food industry: sugar factories, dairy farms.
  • Electronics industry, printed circuit boards.
  • Water treatment plants.
  • Other hazardous chemical applications.
  • Galvanic plants and surface treatment plants.

Corrosive liquids

  • Pumps for sulfuric acid.
  • Pumps for caustic soda.
  • Pumps for hydrochloric acid.
  • Pumps for muriatic acid.
  • Pumps for sodium hydroxide.
  • Pumps for hydrogen chloride.
  • Pumps for bleach.
  • Pumps for hydrofluoric acid.
  • Pumps for sodium chloride.
  • Pumps for phosphoric acid.
  • Pumps for acetic acid.
  • Pumps for nitric acid.
  • Pumps for aqua regia.
  • Pumps for citric acid.
  • Pumps for formic acid.
  • Pumps for lactic acid.
  • Pumps for peracetic acid.
  • Pumps for ammonia.
  • Pumps for chemical fertilizers.
  • Pumps for pesticides.
  • Pumps for industrial deodorizers.
  • Pumps for caustic potash.
  • Pumps for fuels.
  • Pumps for solvents.
  • Pumps for distilled water.
  • Pumps for peroxide.
  • Pumps for purified water.
  • Pumps for dyes.
  • Pumps for chemical additives.
  • Pumps for photographic baths.

Plastic magnetic drive pumps typical applications

  • Alkaline and acid solutions.
  • Highly corrosive liquids.
  • Contaminating toxic substances.
  • Environmentally dangerous liquids.
  • Chemical waste in general.
  • Harmful liquids: noxious or carcinogenic.

Metallic magnetic drive pumps typical applications

  • Alkaline and acid solutions.
  • Diathermic oil.
  • Hydrocarbons, pyrophosphates and other flammable compounds.
  • Refrigerants and cryogenic solutions.
  • Radioactive or explosive liquids.
  • Harmful liquids: toxic, hazardous or carcinogenic.

Operational limits

  • Not overly hot liquids.
  • Clean liquids with no impurities.
  • Liquids with no metal suspensions.
  • Non oversaturated liquids.
  • Non abrasive liquids.
  • Liquids with maximum viscosity: 200 cSt.

Savino Barbera srl

Via Torino 12
10032 Brandizzo, ITALY
P.IVA 00520820010
R.I.TO 272-1974-2166
REA 489443
Cap. soc. 48000€ i.v.

Tel +39 011 913.90.63

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