Pallas Direct Flow RO500WP (UK)
CL-300 Commercial RO System
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UO Budget 130

Reference: 5110016120


Undersink unit for desalination of softened drinking water according to drinking water regulations (free chlorine not detectable). Drinking water can also be desalinated without pre-treatment. However, in this case the recovery rate is reduced. The decisive factor is the water analysis.

Search Name 381 901
Item Name UO Budget3 130 – 130L/h
Brand Herco
  • Space saving undersink unit
  • Especially good value
  • Operating without water softening unit possible
  • Recovery: 50%
  • Salt rejection percentage: min. 95%
  • Voltage: 230 V/50 Hz

Unit design

  • Stainless steel plate used as installation panel.
  • Special inlet filter with 5 μm activated carbon filter element,
  • high pressure pump as peripheral impeller pump,
  • high performance spirally wound module with PA/PS composite membranes in stainless steel pressure vessel.
  • Inlet solenoid valve.
  • Pressure switch for pump feed pressure, pressure gauge for pump pressure
  • Flow restrictor for limitation of permeate and concentrate flow rate.
  • Solenoid valve for automatic concentrate-rinse.
  • Connecting cable (2 m) with shockproof plug.
  • Unit completely wired and pre-assembled and ready for installation. Electrical equipment in accordance with VDE 0100 part 600, VDE 0113 part 1.


RO 524 microprocessor control system

  • For fully automated monitoring and control of the reverse osmosis unit with two-digit alphanumeric display of permeate
    conductivity, forced stop and full tank.
  • Malfunction signals: low pressure, hard water and high conductivity, automatic restart of operation after progressive rest period.
  • LEDs for operation and disinfection status. Automatic concentrate flushing after each operating cycle, forced flushing after 24 h standby.
  • Inputs (low voltage) for level control with 1 or 2 float switches, hardness monitoring unit limitron (the RO 524 controller includes control functions for the limitron hardness monitoring unit), shut-downs by external signal (forced stop, regeneration).
  • Outputs for softening unit (230 V / 50 Hz), for 2 solenoid valves and for DDC (collective malfunction signal on floating change-over contact).
Options Conductivity measurement permeate
Footnotes The units are designed for a maximum TDS of 1,000 mg/l, a water temperature of 15°C, a max. colloidal index of 3 and free permeate outlet. Under these conditions, the unit still reaches design permeate flow after 3 years of operation. The permeate recovery depends on the raw water quality and the type of pre-treatment.
Height 360 mm
Membranes 4021 x 1
Controller RO 524
Width 800 mm
Permeate Flow 130 l/h
Recovery 50 %
Max Operating Pressure 10 bar
pH Range 3 – 11
Feedwater Connection R ¾” AG
Permeate/Concentrate Connection DN 10
Minimal Salt Rejection 95 %
Voltage 230V / 50Hz
Motor Power 0.4 Kw
Pre-fusing 16 A
Conductivity Range 1 – 99 μS/cm
Feedwater Pressure min./max. 3/6 bar
Feedwater Temperature min./max. 5/35 °c
Ambient Temperature Max. 40°c
Weight 31 kg
Depth 360 mm