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X-Flow

HFS60

X-Flow HFS60 modules are based on hydrophilic hollow-fiber ultrafiltration membranes, composed of a PES/modified PES blend. The membranes, which are operated in a dead-end mode, have high mechanical and chemical strength, making them suitable for a wide range of applications. The pressurized membrane modules with inside-out configuration are the industry’s choice for the removal of colloids such as colloidal silica.

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Features

  • Removal of colloidal matter: 99,8% removal of colloidal silica
  • 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 (1-12) and high chlorine stability (maximum free chlorine 250 mg/l)
  • Typical high permeability: low energy consumption

Functional Description

pretreatment for silica removal


The core of the HFS60 membrane technology is the single-fiber, inside-out filtration process that delivers a robust solution. The modules are operated vertically or and can be configured in four different ways:
  1. In the X-line rack
  2. With standard End caps
  3. In the vertical high pressure setting
  4. In the horizontal dead-end UF configuration

Click here to learn more about these three configurations.



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

Fields of application

Silica removal in demin plants
The HFS60 membrane modules will remove colloidal silica in boiler feed applications. The HFS60 membrane can either be installed downstream or upstream of the demin plant. When installed downstream of the demin plant, the HFS60 membranes can be operated at high fluxes and with long cleaning intervals. When installed upstream, they will not only remove colloidal silica, but also suspended solids and microbial particles, thus providing excellent protection of the ion exchange system.
Soft drink manufacturing
The HFS60 membrane meets the 20 kDa soft drink manufacturing requirement. It guarantees the best water quality, free of microbial particles, suspended solids and small colloidal matter that may interfere with soft drink manufacturing (carbonated drinks, ice tea, packaged water).

Specifications - large scale

HFS60

Membrane surface area
60 m²
Module dimensions (dxl)
8.7” x 1.54m
Housing material
PVC
Membrane material
PES/MOD PES
Hydraulic membrane diameter
0.8mm
Nominal pore size
10,000 Dalton
pH-range
2-12
Chlorine resistance
250,000ppm hours @ pH ≥10
Download datasheet
Datasheet HFS60
Connection configurations: to learn more about other X-Flow membrane modules and their connection configurations, please click here.

specifications - small scale & piloting

R-21 HFS

Membrane surface area
4.0m2
Module dimensions (dxl)
3” x 1m
Housing material
PVC-C
Membrane material
PES/MOD PES
Hydraulic membrane diameter
0.8mm
Nominal pore size
10,000 Dalton
pH-range
2-12
Chlorine resistance
250,000ppm hours @ pH ≥10
Download datasheet
Datasheet R-21 HFS

RX-300 HFS

Membrane surface area
0.07m2
Module dimensions (dxl)
1” x 0.3m
Housing material
PVC
Membrane material
PES/MOD PES
Hydraulic membrane diameter
0.8mm
Nominal pore size
10,000 Dalton
pH-range
2-12
Chlorine resistance
250,000ppm hours @ pH ≥10
Download datasheet
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