A pressure sensor monitoring changes in the water consumption signals the speed controller to change motor speed to adapt performance to the new state

"Alarm": Motor has stopped (flashing red indicator lights)

or a DMX model 221 dosing pump

pump head and impeller) can be removed for maintenance or service while the pump housing remains in the pipework

impellers and chambers are made of stainless steel

pressure loading valves 95730744 A pressure sensor monitoring changesPressure loading valves provide a constant counter pressure and prevent siphoning They are installed in the discharge line after the pressure relief valve, and after the pulsation damper, if fitted.