SWC® Hydranautics Membranes

Seawater Reverse Osmosis Elements

SWC seawater desalination elements offer the highest level of salt rejection and a consistently pure end product. Membrane formulations are designed to accommodate varying levels of seawater salinities worldwide with reliable field-proven performance.

Advantages

99.8% Nominal Rejection
Up to 9,900 Gallons Per Day
Highest combination flow, rejection and boron rejection (SWC5 Max)
Up to 440 Sq. Ft. Active Membrane Area

Applications

Seawater Desalting
Broad offering of membrane formulations designed to accommodate varying levels of seawater salinities worldwide.

Hydranautics has over two decades of experience in desalination and over 1.7 million cubic meters (461 million gallons per day) of seawater treated by their SWC (seawater composite) membranes. SWC seawater desalination membranes are available in high productivity 8-inch and 4-inch elements, all offering the highest levels of salt rejection and a consistently pure end product. Membrane formulations are designed to accommodate varying levels of seawater salinities worldwide with reliable field-proven performance.

Hydranautics SWC Seawater Reverse Osmosis Membranes Desalinators
Hydranautics Membrane SWC Seawater RO

SWC4+ - High rejection performance in a high surface area membrane
SWC4+ MAX - Ten percent additional active surface area for higher flow.
SWC4+B - The highest boron rejection available
SWC4+B MAX - High Boron Rejection with Ten percent additional active surface area for higher flow.
SWC5 - Designed to offer Higher Flow
SWC5-LD - Lower fouling for maximum performance
SWC5 MAX - Ten percent additional active surface area for higher production.
SWC6 - Seawater Reverse Osmosis Membranes

Model No. (Click for spec. sheet)	Flow Rate*		Pressure Rating (PSI)	Nominal *Salt Rejection %**	*Minimum Salt Rejection %**	Size* (Dia. x L)	Spec.
Model No. (Click for spec. sheet)	(GPD)	(m3/d)	Pressure Rating (PSI)	Nominal *Salt Rejection %**	*Minimum Salt Rejection %**	Size* (Dia. x L)	Spec.
SWC-2514	110	0.4	800	99.4	99.0	2.5" x 14"
SWC-2521	220	0.8	800	99.4	99.0	2.5" x 21"
SWC-2540	520	2.0	800	99.4	99.0	2.5" x 40"
SWC-4014	370	1.4	800	99.4	99.0	4" x 14"
SWC-4021	640	2.4	800	99.4	99.0	4" x 21"
SWC5-4040	1,900	7.2	800	99.7	99.5	4" x 40"
SWC5-LD-4040	1,750	6.6	800	99.7	99.5	4" x 40"
SWC6-4040	2,500	7.2	800	99.7	99.5	4" x 40"
SWC4+	6,500	24.6	800	99.8	99.7	8" x 40"
SWC4-LD	6,500	24.6	800	99.8	99.7	8" x 40"
SWC4 MAX	7,200	27.3	800	99.8	99.7	8" x 40"
SWC4B	6,500	24.6	800	99.8	99.7	8" x 40"
SWC4B MAX	7,200	27.3	800	99.8	99.7	8" x 40"
SWC5	9,000	34.1	800	99.8	99.7	8" x 40"
SWC5 MAX	9,900	37.5	800	99.8	99.7	8" x 40"
SWC5-LD	9,000	34.1	800	99.8	99.7	8" x 40"
SWC6	12,000	45.5	800	99.8	99.7	8" x 40"
SWC6 MAX	13,200	50.0	800	99.8	99.7	8" x 40"

*Please see product specification sheets for the test conditions under which the stated performance are based, and exact membrane element dimensions.
Click the model number to download the data sheet for that element.

Hydranautics Seawater Membranes

Obsolete SWC Membrane Models

The below Hydranautics SWC Membrane Models are Obsolete and are no longer available for purchase. The below information is being listed for reference and replacement purposes only.

Hydranautics Membrane Model No.	Flow Rate (GPD)	Size (Inches)
SWC1 Seawater Membranes
SWC1-2540 Not Available - use M-S2540A	500	2.5" × 40"
SWC1-4040 Not Available - use SWC5-4040, SWC6-4040 or M-S4040A	1,200	4" × 40"
SWC1 Not Available - use replacement from above table.	5,000	8" × 40"
SWC2 Seawater Membranes
SWC2-2521 *Not Available - use M-S2521A*	225	2.5 × 21"
SWC2-4040 *Not Available - use SWC5-4040, SWC6-4040 or M-S4040A*	1,500	4" × 40"
SWC2 *Not Available - use replacement from above table.*	6,000	8" × 40"
SWC3 Seawater Membranes

SWC3 *Not Available - use replacement from above table.*	5,900	8" × 40"
SWC3+ *Not Available - use replacement from above table.*	7,000	8" × 40"

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