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X-Flow

Seaflex

The core of the Seaflex membrane technology is the hydrophilic hollow membrane, composed of a PES/PVP blend. The membranes’ high mechanical and chemical strength makes them extremely durable. The membrane modules are operated inside-out and have proven to be first choice in the pretreatment for sea water reverse osmosis systems (SWRO). By thoroughly removing suspended solids, Seaflex membrane modules protect downstream SWRO systems from fouling.

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Features

  • Removal of microorganisms
  • High membrane packing density: The industry’s smallest free volume in a membrane module
  • 100% integrity testing on individual fibers
  • Individual fiber repair
  • Very good antifouling behavior
  • Typical permeate quality: 
    • SDI < 3 
    • Turbidity < 0.1NTU
  • Excellent chemical resistance with a wide pH range (2 – 12) and high chlorine stability (maximum free chlorine 500 mg/l)
  • Typical high permeability: low energy consumption

Functional Description

Seaflex for SWRO pretreatment


The core of the Seaflex membrane technology is the single-fiber, inside-out filtration process that delivers a robust solution. The modules are operated vertically and can be configured in three different ways:
  1. In the X-line rack
  2. With standard end caps
  3. In the vertical high pressure setting

Click here to learn more about these three configurations.


Pentair X-Flow - The Vertical Dead End X-line Rack proces scheme

Fields of application

Pretreatment for Seawater Reverse Osmosis systems

The Seaflex membrane modules offer an effective barrier to suspended solids and silt.
The almost total removal of suspended solids protects the SWRO from fouling.

Specifications

SEAFLEX 64

Membrane surface area
64 m²
Module dimensions (dxl)
8.7” x 1.54m
Housing material
PVC
Membrane material
PES/PVP
Hydraulic membrane diameter
0.8mm
Nominal pore size
20nm
pH-range
2-12
Chlorine resistance
250,000ppm hours @ pH ≥10
Download datasheet
Datasheet Seaflex 64

SEAFLEX 55

Membrane surface area
55 m²
Module dimensions (dxl)
8.7” x 1.54m
Housing material
PVC
Membrane material
PES/PVP
Hydraulic membrane diameter
0.8mm
Nominal pore size
20nm
pH-range
2-12
Chlorine resistance
250,000ppm hours @ pH ≥10
Download datasheet
Datasheet Seaflex 55

SEAFLEX 40

Membrane surface area
40 m²
Module dimensions (dxl)
8” x 1.54m
Housing material
PVC
Membrane material
PES/PVP
Hydraulic membrane diameter
0.8mm
Nominal pore size
20nm
pH-range
2-12
Chlorine resistance
250,000ppm hours @ pH ≥10
Download datasheet
Datasheet Seaflex 40
X-line rack: the Seaflex membrane modules are available in the X-line rack, a highly flexible, pre-engineered UF membrane concept.
Connection configurations: to learn more about other X-Flow membrane modules and their connection configurations, please click here.
Replacement: in case you have Seaflex modules, you can find your replacement alternative on the replacement page.