Dosing pump

WDPHRH system integrates a control instrument and two proportional metering pumps and it is the perfect solution for specific dosage need like that of swimming pools sector.

It is equipped with backlit LCD display, encoder control, PVDF pump heads and liquid ends, stand-by, flow sensor input, programmable delay at dosing startup, pH priority dosage, service menu with probe reading value, probe check-up and alarms.

RS485 output enables remote control of WDPHRH through the exclusive ERMES system.

WDPHRH system has acid/base (pH) and disinfectant (ORP) dosing parameters.


  • Backlit LCD display
  • Instrument control by a rotation “encoder”
  • PVDF pump heads and liquid ends
  • 2-ball valves
  • Stand-by
  • Flow sensor input
  • Programmable delay at dosing startup (max 60 minutes).
  • pH priority dosage
  • Service menu with probe reading value
  • Probe check up
  • Alarms: - damaged probe - max dosage - levels - voltage - flow

Measurement parameters

pH0/14 pH ORP 0/1000 mV


Manual venting
bar l/h cc/S
3 10 0,93
Self venting
bar l/h cc/S
3 7 0,65

Pump heads

  • PVDF


  • PVDF injection valve
  • PVDF level probe
  • PVDF foot/filter valve
  • 2 m PVDF delivery hose
  • 2 m flexible PVC suction hose
  • 2 m PVC outgassing hose


underwriters laboratories

Underwriters Laboratories