4000GPD RO System (Rotek)

Regular price
R 48,300.00
Regular price
Sale price
R 48,300.00

Vendor : puritechwater

Product Type :

Sku : RO4000R

Hurry! Only
units left in stock!

Sorry! Our 4000GPD RO System (Rotek) is currently sold out.

Want to be notified when it becomes available again? Simply register your interest and we'll send you a message when it does.

Free Delivery
Lorem Ipsum dummy
Reassurance Image
Care Support
Lorem Ipsum dummy
Reassurance Image
Big Savings
Lorem Ipsum dummy
Reassurance Image
Gift Voucher
Lorem Ipsum dummy



When you consider purchasing this system, you need to know the following information as it is very important.

This system requires a pretreatment setup for it to perform like it was designed to.

Below, the sketch shows a basic pretreatment setup with the reverse osmosis system.

The above pretreatment setup is not guaranteed to work unless recommended by a sales agent according to the water analysis report from a lab.

A water analysis report is very important as it determines the pretreatment setup needed to be installed before the reverse osmosis system. As you can see on the sketch above, the pretreatment consists of a Sand/Glass Filter, Carbon Filter, and Antiscalant Dosing system.

Pretreatment setups can consist of even more items installed before the reverse osmosis system. Below is a list of items that could be required as per the water analysis report.

  1. Chlorine Dosing System
  2. Ultrafiltration System
  3. Dmi-65 Iron Removal Media Filter System
  4. Ozone Generator
  5. Flocculant System

Once all the equipment has been purchased, you will need a qualified technician to put together the complete setup. We have our own qualified technicians train by the manufacturers of the equipment to do the installation running of the setup. Should you require us to install the system for you, a quote with the installation fee will be sent to you by the sales agent in charge.

Training can also be offered to the guys you want to be the ones installing your setup instead of our technicians.

4000 GDP RO System (Rotek)

These industrial 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 ROTEK, 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.

​ROTEK RA series systems are part of a family of industrial 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.

500 Litres Per hour Industrial Reverse Osmosis System

Available Options

  • RO membranes available with brands of Filmtec, Hydranautics, Vontron, and Toray
  • FRP membrane vessel
  • Grundfos multistage pump
  • CNP multistage pump
  • Concentrate recycling flow meter
  • Provision for CIP






Models RA 800 RA 1500 RA 3000 RA 4500 RA 6000
Feed Water TDS <1500ppm <1500ppm <1500ppm <1500ppm <1500ppm
Recovery Rate* 18-75% 18-75% 34-75% 45-75% 50-75%
Vessel Array 1 1 1:1 1:1:1 1:1:1:1
Vessel Size 2540 x 1 4040 x 1 4040 x 2 4040 x 3 4040 x 4
Permeate Flow Rate (GPM/lpm)** 0.6/2.2 1.0/3.9 2.1/7.9 3.1/11.8 4.2/15.8
Feed Connection 3/8" FNPT 1/2" FNPT 3/4" FNPT 3/4" FNPT 3/4" FNPT
Permeate Connection 3/8" 3/8" 1/2" 1/2" 1/2"
Concentrate Connection 3/8" 3/8" 1/2" 1/2" 1/2"
Flush Connection 3/8" 3/8" 1/2" 1/2" 1/2"
Pump type & Motor HP Rotary Vane 0.5HP Rotary Vane 1HP Multistage 2HP Multistage 2HP Multistage 2HP
Gross Dimension (cm) 66X45X130 66X45X130 69X63X147 69X63X147 69X63X147
Gross Weight (kg) 35 45 88 94 100


  • RO micro-computer controller with permeate TDS readout
  • 300PSI stainless steel membrane housing+PE end caps
  • ROTEK LPE multistage pump for 1500-6000GPD
  • 5-micron sediment pre-filter x 2 in series
  • Rotek rotameters for permeate and concentrate stream
  • Rotek pressure gauges for prefilter feed and RO feed
  • Low-pressure switch
  • SS316 concentrate needle valve
  • Concentrate recycling valve (without flow meter)
  • The electro-plated SS304 skid frame

Benefits Of The Industrial Reverse Osmosis System

  • Specialized Micro-Computer Controller
  • Fully Equipped and Customizable
  • Factory Tested and Preserved
  • 1-Year Limited Warranty
  • Manufactured in Taiwan

Customer Reviews

Be the first to write a review
This is a custom product tab. You can set different content for tabs for each product. You can add content of the tabs in the admin on product configuration page.