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Keensen SW-8040 Seawater RO Membrane | 8040 SWRO HF / MR / HR Options
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Product Snapshot

Format 8040 / 8" × 40"
Membrane Type Seawater RO / SWRO
Available Options SW-8040HF / SW-8040MR / SW-8040HR
Active Area 400 ft² / 37.2 m²
Feed Spacer 28 mil
Supply Basis Supply to order / Quote on request

HF / MR / HR Options

Model Positioning Permeate Flow Stabilized Salt Rejection Minimum Salt Rejection Application Priority
SW-8040HF High-flow seawater RO option 9,000 GPD / 34.1 m³/d 99.80% 99.70% Higher permeate flow
SW-8040MR Balanced seawater RO option 7,500 GPD / 28.3 m³/d 99.75% 99.70% Balanced flow and rejection
SW-8040HR High-rejection seawater RO option 6,500 GPD / 24.6 m³/d 99.80% 99.75% Higher minimum rejection / permeate quality

SW-8040HF is positioned for seawater RO applications where higher permeate flow is preferred. SW-8040MR provides a balanced option for standard SWRO replacement and high-salinity applications. SW-8040HR is positioned for applications where minimum salt rejection and permeate quality are prioritised. Final selection should be reviewed against feed salinity, operating pressure, recovery rate, required permeate quality and existing SWRO system design.

Need SWRO membrane pricing or model review?

Send the existing membrane model, quantity, application, feed salinity or conductivity, operating pressure, required permeate quality and delivery postcode where available. Crystwater can review the appropriate SW-8040 option, specified model enquiry or technically comparable supply route.

SWRO model review Pricing and lead time Specified model enquiry Freight basis
Request SWRO Pricing & Model Review

Final selection is subject to system requirements, feedwater quality and operating conditions.

Keensen SW-8040 Seawater RO Membrane | 8040 SWRO HF / MR / HR Options

Keensen SW-8040 Seawater RO Membrane | 8040 SWRO HF / MR / HR Options

8" × 40" seawater reverse osmosis membrane elements for commercial and industrial SWRO systems, desalination, high-salinity feedwater treatment, RO concentrate reuse and selected high-salinity wastewater concentration applications.

The Keensen SW-8040 series is available for enquiry and supply to order, with HF, MR and HR options for different seawater RO design priorities. Final model selection should be reviewed against feedwater salinity, operating pressure, recovery rate, permeate quality target, pretreatment condition and existing SWRO system design.

Supply to order SWRO / seawater RO 8040 / 8" × 40" HF / MR / HR options Pricing by quotation Application review
SKU: CW-RO-SW-8040

Supply to order. Contact Crystwater for pricing, lead time and application review.
Please provide the existing membrane model, quantity, application, feed salinity or conductivity, operating pressure, required permeate quality and delivery postcode where available.

Request Pricing & Lead Time
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HF / MR / HR Options Select from high-flow, balanced or high-rejection SW-8040 options subject to application review.
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Seawater RO Duty Designed for commercial and industrial SWRO systems, desalination and selected high-salinity applications.
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Supply to Order Pricing and lead time are confirmed by quotation based on model selection, quantity and availability.
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Application Review Selection should be checked against feed salinity, operating pressure, recovery and permeate quality requirements.
Product Overview

The Keensen SW-8040 series covers 8 inch by 40 inch seawater reverse osmosis membrane elements for commercial and industrial SWRO systems, desalination, high-salinity feedwater treatment, RO concentrate reuse and selected high-salinity wastewater concentration applications.

HF, MR and HR options are available for different seawater RO design priorities. Final model selection should be reviewed against feedwater salinity, operating pressure, recovery rate, permeate quality target, pretreatment condition and existing SWRO system design.

This page is for enquiry-based supply. Pricing and lead time are confirmed by quotation, and the product is not presented as an immediate-dispatch in-stock item.
Specifications
Membrane familyKeensen SW series
Membrane chemistryAromatic polyamide composite
Format8040 / 8" × 40"
Active membrane area400 ft² / 37.2 m²
Concentrate channel spacer28 mil
ModelPermeate flowStabilized salt rejectionMinimum salt rejection
SW-8040HF9,000 GPD / 34.1 m³/d99.80%99.70%
SW-8040MR7,500 GPD / 28.3 m³/d99.75%99.70%
SW-8040HR6,500 GPD / 24.6 m³/d99.80%99.75%
Test Conditions
ParameterTest Condition
Test solution32,000 mg/L NaCl
Temperature25°C
pH7.5-8.0
Operating pressure800 psi / 5.5 MPa
Recovery8%
Water production tolerance±15%
Operating Limits
ParameterLimit
Maximum operating pressure1200 psi / 8.3 MPa
Maximum feed flow rate17.0 m³/h
Maximum operating temperature45°C
Maximum SDI155.0
Free chlorine tolerance0.1 mg/L
Continuous operation pH range3-10
Short-term cleaning pH range1-13
Maximum element pressure drop15 psi / 0.1 MPa
Selecting HF, MR or HR

Select SW-8040HF where higher permeate flow is the main design priority and system conditions allow. Select SW-8040MR where a balanced seawater RO option is suitable for the application. Select SW-8040HR where minimum salt rejection and permeate quality are prioritised.

For replacement enquiries, please provide the existing membrane model, quantity, feed salinity or conductivity, operating pressure, recovery rate, required permeate quality and delivery postcode.
Typical Applications
  • Seawater desalination
  • High-salinity source water treatment
  • Commercial and industrial SWRO systems
  • RO concentrate reuse
  • High-salinity wastewater concentration
  • Zero liquid discharge pretreatment or concentration applications
  • Material concentration where SWRO membranes are suitable

Application suitability depends on feedwater quality, pretreatment, operating pressure, recovery rate, scaling risk, fouling risk and permeate quality requirements.
Supply, Lead Time & Freight

This product is supplied to order. Pricing and lead time are confirmed by quotation based on model selection, quantity, production availability, freight method, delivery location and current market conditions.

For bulk or project-based enquiries, Crystwater can provide pricing, estimated lead time and freight basis after the required model, quantity and delivery postcode are confirmed.

SWRO Membrane FAQs

Is this product in stock?

This SWRO membrane page is for enquiry and supply-to-order requests. Pricing and lead time are confirmed by quotation.
What is the difference between SW-8040HF, SW-8040MR and SW-8040HR?

SW-8040HF is positioned for higher permeate flow, SW-8040MR is a balanced seawater RO option, and SW-8040HR is positioned for higher minimum salt rejection and permeate quality priority.
Can this replace another 8040 seawater RO membrane brand?

A different brand may be considered only after checking membrane size, performance range, operating pressure, feedwater quality, recovery rate and permeate quality requirements. Final suitability should be confirmed against the existing SWRO system design.
What information is needed for a quote?

Please provide the existing membrane model, quantity, feedwater salinity or conductivity, application, operating pressure, recovery rate, required permeate quality, preferred lead time and delivery postcode where available.