XL Series


The XL’s are rugged and very accurate single-block positive return hydraulic diaphragm pumps suitable for high demanding 24/7 industrial applications. Built in full compliance with API675 and ATEX 2014/34/UE standards, these pumps house a relief valve, an air purge valve, and a mechanically actuated self-replenishing hydraulic system. These features combined protect the pump and the whole dosing system from damages due to overpressures, while granting a proper chemical dosing under any circumstances.


  • Flow rate from 63 to 1500 l/h (13,8 to 330 gph)
  • Working pressure up to 20 barg or 290 psi
  • Chemical resistant coated cast iron enclosure
  • AISI 316, PVC, PP, PVDF, HAST C liquid end
  • Manual stroke length adjustment, electronic actuator available
  • Built-in relief valve, air purge valve and self-replenishing hydraulic system
  • Rupture detector pressure gauge included
  • Steady-state accuracy ±1%, linearity ±3%, repeatability ±3%
  • Max working liquid temperature +60°C
  • API675 and ATEX 2014/34/UE compliant