Dosing pump

WDPHOS 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, service menu with probe reading value, probe check-up and alarms.

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

WDPHOS system has acid/base (pH) and active oxygen dosing parameters, test function, weekly/daily timer for active oxygen and standard volume at 25° and 30°C.


  • Backlit LCD display
  • Instrument control by a rotation “encoder”
  • PVDF pump heads and liquid ends
  • 2-ball valves
  • Stand-by
  • Flow sensor input
  • Service menu with probe reading value
  • Probe check up
  • Alarms: - damaged probe - max dosage - levels - voltage - flow

Measurement parameters

pH0/14 pH Active oxygen 0/100° C


Test function
Weekly/daily timer for active Oxygen


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