About The System

Puritech ECO series systems are part of a family of reverse osmosis units specifically designed for operation with fresh and brackish feed waters having TDS values below 1,500ppm. Customers can access these Models with permeate outputs of between 150 and 1,000 liters/hr as shown in the specifications.

The reverse osmosis systems have been widely used for commercial purposes such as treatment of wastewater, desalination, minerals reclamation, and purification of water. If you have been searching for the best and efficient Industrial RO system, then you have landed at the right place. At Puritech, we provide the best quality of RO water units that can meet your needs, expectations, and budget.

We provide the highest standard and compact commercial reverse osmosis system at an affordable pricing range. All our RO systems are highly durable and we guarantee that they can be last for many years with proper care and maintenance.


ECO 2000

Feed Water TDS<1500ppm
Recovery Rate18-75%
Vessel Array1
Vessel Size4040 x 1
Permeate Flow Rate (gpm/lpm)**1.0/3.9
Feed Connection1/2″ FNPT
Permeate Connection3/8″
Concentrate Connection3/8″
Flush Connection3/8″
Pump type & Motor HPPLD2-9 Vertical Multistage
Gross Dimension (cm)66X45X130
Gross Weight (kg)45


  • Specialized Micro-Computer Controller
  • Fully Equipped and Customizable
  • Super-Quiet LPD2-9 Multistage Pump
  • Low Energy Consumption
  • High Flow Low-Energy Membranes
  • Low Maintenance
  • Compact Space Saving Design

Standard Features

  • RO micro-computer controller with permeate TDS readout
  • 300PSI stainless steel membrane housing+PE end caps
  • Shimge PLD multistage pump for 2000-8000GPD
  • 5-micron sediment pre-filter x 1
  • Puritech rotameters for permeate and concentrate stream
  • Puritech pressure gauges for prefilter feed and RO feed
  • High-pressure switch
  • Concentrate recycling valve (without flow meter)
  • The electro-plated SS202 skid frame

Available Options

  • RO membranes available with brands of Puritech, E-MEM, and Vontron
  • Stainless Steel membrane vessel
  • Shimge multistage pump
  • Concentrate recycling flow meter
  • Provision for CIP

1. Introduction

This operating and maintenance manual outlines a general overview, operation, maintenance, and troubleshooting details vital to the sustained performance and understanding of your system.


Before operating or servicing this system, this operating and maintenance manual must be read and fully understood. Keep it and other associated information regarding this system safe for future use.

2. Safety Precautions

2.1 General Safety Precautions

The system should be operated and maintained by trained personnel. Personnel must comply with this manual as well as the safety measures listed by their own employer. Water Purification Solutions cannot be held liable for any damages, injury, or even death that may result from the use of this system.

2.2 Safety Headings

The safety section of this manual outlines various safety headings throughout the manuals’ text and are identified and defined as below:


Indicates statements that provide further information and clarification.


Indicated statements that are used to identify conditions or practices that could result in equipment or property damage.


Indicates statements that are used to identify conditions or practices that could result in injury or loss of life. Failure to follow these warnings could result in serious injury or even death.

3. Safety Precautions

Do not remove any labelling of this system. These labels are used to warn against potential hazards as well as identify components

4. General Plant Description

4.1 Purpose

To reduce dissolved salt content of raw water for later use.

4.2 Principle Process

Reverse Osmosis (RO) is a form of high pressure hyper filtration where dissolved solids are removed from the supply stream to produce treated water (permeate) and waste water (concentrate). This is a continuous process running at a fixed flow rate. 

4.3 Process Flow

Water is fed from a saline supply with minimal suspended matter, i.e. Pre-treated water, to the filter cartridge before being pumped through the reverse osmosis (RO) stage of the system where the dissolved salt content is reduced. The treated water (permeate) is fed into a holding tank and the concentrate to drain.  

5. Process Description

5.1 Pre-Filtration

Raw water is fed through a pressurized line into the water treatment system. The filtration stage of the system consists of a cartridge filter in which suspended matter larger than 5 microns is removed. A solenoid valve is used to shut off the supply line when the holding tank has reached its top level or when the system is turned off.

5.2 Reverse Osmosis (RO)

Pre-filtered water is fed to the RO system by means of the horizontal centrifugal pump.

The pump is controlled by the following parameters, namely:

  • Product tank high level, indicated by a float level switch
  • Raw supply tank low level, indicated by a float level switch.
  • Low-pressure condition, indicated by the pressure switch
  • Timer unit contact.

The RO system generates two steams of water, a purified stream (permeate) is directed to the product tank while the concentrated stream is directed to the drain. A ballvalve on the concentrate line allows for manual flushing of the RO system. Pressure indicators are fitted at strategic points to illustrate the systems operating pressure. Flow rate through the system can be monitored by the inline rotameters on both the permeate and concentrate lines.

En route to the product tank, permeate passes a conductivity probe, which reads conductivity of the product water

6. Technical Data

6.1 Equipmenty Details

Reverse Osmosis PumpTagP-1
ModelShimge PLD2-9
Duty2000L/hr @10 bar
Power1.5 kW
Cartridge FilterTagCF-1
DimensionsØ 4.5” x 10” L
Elements5 µm, MeltBlown
Solenoid ValveTagSV-1
ActuatedElectrically, DC24V
Pipe½”Orifice, 16mm
Reverse Osmosis VesselTagRO-1
Model2.5”, 1 Element, 300 PSI
Port PositionEnd Port
ElementULP21-4040 (Vontron)
Thread1/2″F BSP
Pressure SwitchTagPS-1
Pressure IndicatorTagPI-1
Model63mm, ¼” BSP, Bottom Entry
Range0-10 bar
Pressure IndicatorTagPI-2
Model63mm, ¼” BSP, Bottom Entry
Range0-10 bar
Conductivity MeterTagConductivity Meter
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