4" Diaphragm pumps dual-action (2 x 3")

4" Diaphragm pumps dual-action (2 x 3")


Diaphragm pumps 4" electrically or fuel driven.

  • Max. power: 3 kW
  • Max. capacity: 30 m3/hr
  • Max. capacity: 500 l/min
  • Max. capacity: 30000 l/hr
  • Max. discharge head: 10 m
  • Max. pressure: 1 bar
  • Max. drainage: 50 mm



The 4" mechanically operated, dual-action, diaphragm pumps can be powered by an electric motor or a 4-stroke petrol or diesel motor.

The pumps can be supplied with a pump housing in aluminium, cast iron, bronze or stainless steel AISI 316. Various kinds of material are available for the diaphragms and the valves including neopreen, NBR, Hypalon, Dutral, atoxic rubber, silicone and Viton, depending on the liquid to be pumped.

Various drives are also available with a range of transfer ratios, depending on the required capacity and number of running hours.

The pumps can be delivered on a fixed frame or on a cart with pneumatic tyres.


  • Cast iron
  • Stainless steel AISI304
  • Bronze
  • Aluminium
  • Stainless steel AISI 316

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