RODI Systems PureFlex™ Modular Systems

RODI Systems PureFlex™

Modular Desalination and Water Purification Systems

The RODI Systems PureFlex™ product line represents a unique approach to providing custom-built desalination and water treatment solutions at “standard product” prices.

The PureFlex™ line includes a number of modular water treatment systems (modules) that may be used standalone or in various combinations to meet the requirements of a wide range of water treatment applications.

This flexibility lowers engineering cost and provides customers with cost-effective, yet technically effective solutions.

The PureFlex™ DLX represents the line of desalination systems in the PureFlex™ product offering. The DLX products are available for either brackish water desalination (generally up to 2,500 ppm TDS) or seawater desalination (generally up to 40,000 ppm TDS).

The PureFlex™ DLX is suitable for a number of applications, including:

Seawater Desalination
Brackish Water Desalination
Wastewater Reuse
High Purity Water Production

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Click on the image below to learn more about the features of the PureFlex™ line.

PureFlex™ DLX Desalination Systems
Features

The PureFlex™ DLX incorporates a number of features that make it a cost-effective way to produce pure water from seawater, brackish water, and many other water sources requiring high performance treatment.

State-of-the-Art Technology

RODI’s PureFlex™ DLX desalination systems feature state-of-the-art technologies to provide a high quality product at the lowest possible cost. The DLX seawater systems utilize Danfoss APP pumps which are some of the most efficient high pressure pumps available. The DLX systems use only high quality thin film membrane elements from manufacturers such as Dow Filmtec, Hydranautics, and Toray. All DLX systems include a modern microprocessor control system which includes electronic sensors for flow, pressure, and water quality along with a color touchscreen operator interface. The state-of-the-art control system ensures safe and efficient operation of the system, even while unattended.

Technical Support and Training

All of RODI’s PureFlex™ systems are supported by a well-trained and highly experienced group of technical and administrative professionals. Whether by email, telephone, or an on-site visit, RODI’s staff is dedicated to supporting each and every product manufactured by RODI Systems.

PureFlex™ DLX Specifications

PureFlex™ DLX Brackish Water RO General Specifications

Model Number	PF-DLX-BW-9	PF-DLX-BW-18	PF-DLX-BW-35	PF-DLX-BW-70	PF-DLX-BW-150	PF-DLX-BW-300
Production (Gal/Day)*	900	1,800	3,500	7,000	15,000	30,000
Feed Flow (GPM)**	1-2	2-3	3-6	6-10	13-20	25-40
Maximum Membrane Feed Pressure (PSI)	250	250	250	250	250	250
Vessel Array (Number of Elements/Vessel)	3 x 2.5 in (1)	6 x 2.5 in (1)	3 x 4 in (1)	6 x 4 in (1)	3 x 8 in (1)	3 x 8 in (2)
Pump Model (HP)	Procon Series 5 (0.75)	Procon Series 5 (1)	Procon Series 6 (2)	Procon Series 6 (3)	Ebara EVMU10-12 (10)	Ebara EVMU10-14 (15)
Electrical Requirement***	1 Ph 200-240 VAC, 50-60 Hz, 7 Amps Or 3 Ph 240-480 VAC, 50-60 Hz, 3 Amps	1 Ph 200-240 VAC, 50-60 Hz, 8 Amps Or 3 Ph 240-480 VAC, 50-60 Hz, 4 Amps	1 Ph 200-240 VAC, 50-60 Hz, 12 Amps Or 3 Ph 240-480 VAC, 50-60 Hz, 7 Amps	1 Ph 200-240 VAC, 50-60 Hz, 17 Amps Or 3 Ph 240-480 VAC, 50-60 Hz, 10 Amps	3 Ph 240-480 VAC, 50-60 Hz, 28 Amps	3 Ph 240-480 VAC, 50-60 Hz, 42 Amps

*Assuming a nominal flux rate of 13 gallons per square foot of membrane surface area per day.
**Actual feed flow and recovery will depend upon feed water quality.
***Amperage values correspond to the lower voltage of the power voltage range.

PureFlex™ DLX Seawater RO General Specifications

Model Number	PF-DLX- SW-6	PF-DLX- SW-12	PF-DLX- SW-20	PF-DLX- SW-40	PF-DLX- SW-100	PF-DLX- SW-200
Production (Gal/Day)*	600	1,200	2,000	4,000	10,000	20,000
Feed Flow (GPM)**	1.5	2.5	4.5	6	18	35
Maximum Membrane Feed Pressure (PSI)	1000	1000	1000	1000	1000	1000
Vessel Array (Number of Elements/Vessel)	3 x 2.5 in (1)	6 x 2.5 in (1)	3 x 4 in (1)	6 x 4 in (1)	3 x 8 in (1)	3 x 8 in (2)
Pump Model (HP)**	Danfoss APP1.0 (2)	Danfoss APP1.5 (3)	Danfoss APP2.5 (5)	Danfoss APP3.5 (7.5)	Danfoss APP5.1 (15)	Danfoss APP8.2 (25)
Electrical Requirement***	1 Ph 200-240 VAC, 50-60 Hz, 12 Amps Or 3 Ph 240-480 VAC, 50-60 Hz, 7 Amps	1 Ph 200-240 VAC, 50-60 Hz, 17 Amps Or 3 Ph 240-480 VAC, 50-60 Hz, 10 Amps	1 Ph 200-240 VAC, 50-60 Hz, 12 Amps Or 3 Ph 240-480 VAC, 50-60 Hz, 7 Amps	3 Ph 240-480 VAC, 50-60 Hz, 22 Amps	3 Ph 240-480 VAC, 50-60 Hz, 42 Amps	3 Ph 240-480 VAC, 50-60 Hz, 68 Amps

*Assuming a nominal flux rate of 8 gallons per square foot of membrane surface area per day.
**Based on 40% recovery..
***Amperage values correspond to the lower voltage of the power voltage range.

PureFlex™ Modular Features

The RODI PureFlex™ product line is comprised of a number of individual treatment modules in addition to the DLX desalination modules. Selecting the appropriate modules allows customers to configure a system for their application and budget.

Here are some of the other modules available:

Media Filtration — Various types of media filtration modules are available. These include multi-media, greensand, zeolite, and activated carbon filtration modules. These may be used as pretreatment to a DLX module or on their own for simple filtration should the application not require desalination.
Membrane Filtration — For more demanding applications, membrane filtration modules are available. These include ceramic microfiltration membrane modules as well as polymeric membrane ultrafiltration modules. As in the case of media filtration, these may be used as pre- treatment to a DLX module or on their own should the application not require desalination.
Chemical Dosing — Chemical dosing modules are available for applications such as oxidant dosing before a greensand filter, coagulant dosing before a multi-media filter, scale inhibitor injection before the DLX unit, or chemical disinfection of the final product.
Permeate Rinse/Cleaning System — This module allows the DLX system to automatically rinse with permeate upon shutdown thus preventing excessive permeate conductivity upon startup. This feature may also be used as a membrane element clean-in-place (CIP) system for routine chemical cleaning of the membrane elements.
Post-treatment — Various post-treatment modules are available to condition the final product from the Pure- Flex™ system. This includes calcite filters for remineralization and UV units for disinfection. Continuous electrodeionization (CEDI) modules are available to polish DLX product for high purity applications.