Diaphragm pumps

Corrosion, electrolysis and fuel resistant bilge pumps. Of rugged construction, they produce high capacity output with the convenience of many mounting positions (see drawings).

  • Self-priming and leak free
  • Quick release inspection cover for added safety.


Model Ref. Capacity at 1 m Weight
Single action 11723 0.80 L per stroke 0.965 Kg
Single action 11722 0.80 L per stroke 0.990 Kg
Double action 11724 1.3 L per stroke 1.840 Kg


Model Single action Single action(supplied without outlets)  Double action
Ref. 11723 11722 11724
Kit of 2 straight outletsKit of 2 outlet elbows  Built it outlets 1749117492 Outlets supplied with pump
Weight 0.965 kg 0.990 kg 1.840 kg
Capacity output at 1 m height  0.80 L per stoke* 0.80 per stoke* 1.3 L per stoke*
Maximum lift 3 m 3 m 3 m
Hose Ø 38 mm 38 mm 38 mm

*± 0.05 L

The double action pump is equipped with outlet elbows, swivelling on 220°, thus allowing all mounting positions and reducing the clearance required (290 mm to 400 mm maximum). The outlet elbows are screwed and fitted with an O-ring for perfect watertightness and added safety (quick release facility). Straight outlets 17491 and elbows 17492 can also be mounted on pump C, which allows pumping in two different locations on the boat, while having only one waste water outlet.