SA Centrifugal Pump

The DESMI SA self-priming centrifugal pump
Up to 650 m3/h (2900 US gpm)


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The diffuser principle in the self-priming DESMI SA centrifugal pump means that the priming capacity is not dependent on valves or other mechanical elements since it is the liquid flow which carries the air.

Within the Marine industry the pumps are suitable as:

  • Bilge pumps
  • Ballast pumps
  • Fire pumps
  • Cooling water pumps
  • Wash-deck pumps
  • Fuel pumps
  • Wellpoint pumps
  • Irrigation pumps
  • Circulation pumps


Within Aquaculture industry the pumps are suitable as:

  • Freshwater
  • Waiter with additives
  • Seawater
  • Oils up to 500 cSt


RAS Applications:

  • Scretting Pumps
  • Miscellaneous

Within Industrial and Utility applications the pumps are suitable for:

  •  Draining building excavations
  • Emptying ponds, drains, and swimming pools
  • Water extraction for irrigation and watering
  • General service pumps
  • Fuel handling
  • Condensate extraction pumps



Open impeller design

  • Semi-open, non clogging high efficiency impeller allowing the pump to operate on dirty water.


Replaceable wear plate

  • To keep the pump at max. capacity even after working with abrasive fluids for a long time, the tolerance between impeller and wear plate may be adjusted by way of shims behind the replaceable wear plate.


Mechanical shaft seal

  • A reliable, spring-loaded, mechanical shaft seal ensures rapid suction, and shaft wear and stuffing box tightening are avoided.


Check valve mounted at a high level

  • The pump check valve is mounted well above the impeller inlet. Consequently, the pump will not - in case of a check valve leakage - lose the priming water which would result in a loss of priming ability.


Heavy bearing design

  • Heavy shaft and bearing design provide long life even in case of belt drive.
Nominal diameter (DN) 20 to 200
Flow rate - 50 Hz Up to 610 m³/h (2700 US gpm)
Flow rate - 60 Hz Up to 730 m³/h (3200 US gpm)
Head Up to 115 m (375 ft)
Temperature Up to 140°C (284°F)
Motor Standard and EX motors
VFD Direct or Bulkhead/Wall-mounted
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SA (for industrial applications)

  • English
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  • French
  • American
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SA (T1345)

  • English
  • Danish
  • Russia
  • German
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  • French

SA25, SA35, SA50 - Monobloc Design (T1517)

  • English
  • Russia
50 Hz



960 RPM  1450 RPM  2950 RPM




960 RPM  1450 RPM  2950 RPM


60 Hz



1152 RPM  1740 RPM  3540 RPM




1152 RPM 1740 RPM 3540 RPM




SA 25 122


SA 35 135 12 


SA 50 180 4




SA 65 250 6 8 17


SA 80 160 A&D



Selection programs

Find curves for existing pumps, get GA drawings for initial designs and compare efficiency, motor power, NPSH and other data to find the right pump.

DESMI Centrifugal Pumps

The range of centrifugal pumps is made to meet the requirements of a wide array of different applications. Be it district heating, cooling, HVAC, fire-fighting or perhaps pumps for the engine room of a maritime vessel, a centrifugal pump is often the ideal choice.

DESMI's centrifugal pumps are characterised by high-level efficiency and low NPSH values. Our vertical pumps require minimal space and provide easy access for maintenance of the pump's rotating parts.

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DESMI is a global company

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