SELF-PRIMING DIAPHRAGM PUMPS

LIBELLULA 1 - 3" - Industrial version


FEATURES

  • Dry-running capability. 
  • Rapid dry self-priming up to a depth of 7 meters in a matter of seconds. 
  • No seal or rotating part in contact with the pumped liquid. 
  • Can be used where there are abrasive or acid fluids. 
  • Wide passage for solid bodies (50 mm). 
  • Flow rate proportional to number of diaphragm pulses. 
  • Very simple, occasional maintenance. 
  • Helical gearbox. 
  • Rigid self-lubricated connecting rod or with spring (on demand). 
The industrial version is supplied with helical gearbox that is quieter and is characterized by its robustness.

BUILDING MATERIALS


Parts in contact with liquid: aluminium, anticorodal aluminium, cast iron, bronze, AISI 316 stainless steel, Rilsan plastic coating.
Parts not in contact with liquid: cast iron.
Diaphragms and valves: Neoprene, Dutral/Tpv Sarlink, Hypalon, Viton, Oil proof Tpv/nitrilic rubber, Non-Toxic rubber.