BOKAWATER · Specialist series04 / RO membrane elements
BOKAWATERRO membrane elements
RO membrane elements

Water reuse & replacement

Evaluate the FR family with the actual reuse-water analysis and operating history. For an installed system, collect model labels, vessel details, cleaning records and measured performance before requesting a replacement recommendation.

BOKAWATER / 04

Product series

Compare the range ↗
BW-4040 — brackish water RO membrane
Brackish water BW

BW-4040 — brackish water RO membrane

BK-BW-4040 · 2500 GPD (9.5 m³/d)

For brackish-water treatment and industrial water preparation. Compare the membrane area, test flow and salt rejection with your feed-water analysis and installed vessel arrangement.

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BW-8040 — brackish water RO membrane
Brackish water BW

BW-8040 — brackish water RO membrane

BK-BW-8040 · 10500 GPD (39.7 m³/d)

For brackish-water treatment and industrial water preparation. Compare the membrane area, test flow and salt rejection with your feed-water analysis and installed vessel arrangement.

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BW-4040FR — fouling-resistant RO membrane
Fouling-resistant FR

BW-4040FR — fouling-resistant RO membrane

BK-BW-4040FR · 2000 GPD (7.6 m³/d)

A fouling-resistant membrane option for reuse-water and challenging feed-water enquiries. Its catalog uses a 34 mil spacer; selection still requires a pretreatment and cleaning review.

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ULP-8040MR-2 — ultra-low-pressure RO membrane
Ultra-low pressure ULP

ULP-8040MR-2 — ultra-low-pressure RO membrane

BK-ULP-8040MR-2 · 10500 GPD (39.7 m³/d)

An ultra-low-pressure RO element for lower-salinity water preparation. Compare its stated test pressure and feed concentration with the BW range before selecting a membrane for an existing pump and vessel layout.

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SW-4040 — seawater RO membrane
Seawater SW

SW-4040 — seawater RO membrane

BK-C-SW-4040 · 1600 GPD (6.1 m³/d)

A seawater RO element with catalog performance stated under seawater-strength salt and boron test conditions. Evaluate the membrane together with the high-pressure system, intake pretreatment and product-water target.

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SW-400 — seawater RO membrane
Seawater SW

SW-400 — seawater RO membrane

BK-C-SW-400 · 7500 GPD (28.4 m³/d)

A seawater RO element with catalog performance stated under seawater-strength salt and boron test conditions. Evaluate the membrane together with the high-pressure system, intake pretreatment and product-water target.

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Questions worth settling early

  • Installed model and connection details
  • Pretreatment and cleaning history
  • Performance before and after cleaning

What to prepare

  • Feed-water source, salinity, temperature and analysis
  • Required permeate flow, quality and operating hours
  • Existing model, dimensions, connectors and pressure vessel
  • Element quantity, array layout and delivery destination

Make the scope explicit

Ask the proposal to distinguish equipment supply, civil works, external piping, electrical connections, commissioning, training and consumables. Confirm each responsibility in the project quotation. Items discussed on this website are planning considerations, not an automatic inclusion in every supply package.

A matching model format or similar test flow does not establish interchangeability. Confirm mechanical fit and system performance before replacement.
Discuss your project ↗

Bring us the conditions. Let’s define the system.

A useful enquiry can start before every parameter is known. Tell us what you know and where engineering input is needed.

Discuss your project