Hydrocomponents & Technologies Inc.
Replaces SW30-2521 Filmtec DOW / DuPont 300 GPD at 800 PSI 2.5 x 21 inch Desalination Machine Watermaker Seawater Membranes ( RE2521-SHF CSM )
Replaces SW30-2521 Filmtec DOW / DuPont 300 GPD at 800 PSI 2.5 x 21 inch Desalination Machine Watermaker Seawater Membranes ( RE2521-SHF CSM )
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Replaces SW30-2521 Filmtec DOW / DuPont 300 GPD at 800 PSI 2.5 x 21 inch Desalination Machine Watermaker Seawater Membranes ( RE2521-SHF CSM )
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Call: 1 (760) 598-0189
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Email: hctivista@gmail.com
PLEASE REFERENCE TABLE BELOW
CSM RE2521-SHF High Flow Seawater RO Membrane
The CSM RE2521-SHF is a specialized High Flow Seawater Reverse Osmosis Element designed to maximize fresh water production in compact desalination systems. Engineered by CSM (Toray), this 2.5-inch diameter membrane is optimized for marine watermakers and small land-based desalination plants where high productivity is required from a limited number of elements. The "SHF" (Seawater High Flow) designation indicates that this model prioritizes permeate flow rate while maintaining excellent salt rejection, making it ideal for applications needing rapid tank filling or higher daily output.
This element features a robust Fiberglass Wrapped exterior to withstand the high operating pressures (typically 800 PSI) necessary for seawater desalination. It utilizes advanced polyamide thin-film composite technology to achieve a stabilized salt rejection of 99.7%, ensuring high-quality potable water even from high-salinity feed sources. With standard 2521 dimensions (2.5" x 21"), it is a direct replacement for other major brands in the same size category, offering a significant performance upgrade in terms of flow capacity.
| SPECIFICATION | DETAILS |
| Model Number | RE2521-SHF |
| Manufacturer | CSM (Toray) |
| Membrane Type | Seawater High Flow (SHF) |
| Material | Polyamide Thin-Film Composite |
| Exterior Wrap | Fiberglass |
| Permeate Flow Rate | 300 GPD (1.1 m³/d) |
| Stabilized Salt Rejection | 99.7% |
| Minimum Salt Rejection | 99.5% |
| Test Pressure | 800 PSI (55.2 Bar) |
| Max Operating Pressure | 1,200 PSI (82.7 Bar) |
| Dimensions | 2.5" Diameter x 21" Length |
| Active Surface Area | 12 ft² (1.1 m²) |
| Max Operating Temp | 113°F (45°C) |
| pH Range (Continuous) | 2 - 11 |
CSM RE2521-SHF
High productivity RO element for seawater and high salinity well water
SPEC'S SHEET:
https://www.csmfilter.com/upload/csm/swe/12.%20RE2521-SHF_190313_PMK.pdf
SPECIFICATIONS:
General
Features Permeate flow rate: 270 GPD (1.02 m3/day)
Nominal salt rejection: 99.4%
Effective membrane area: 12 ft2 (1.1 m2)
1. The stated product performance is based on data taken after 30 minutes of operation at the following
test conditions:
• 32,000 mg/L NaCl solution at 800 psig (5.5 MPa) applied pressure
• 4% recovery
• 77 oF (25 oC)
• pH 6.5–7.0
2. Minimum salt rejection is 99.0%.
3. Permeate flow rate for each element may vary but will be no more than 20%.
4. All elements are vacuum sealed in a polyethylene bag containing 1.0% SBS (sodium bisulfite) solution
and individually packaged in a cardboard box.
Membrane type: Thin-Film Composite
Membrane material: Polyamide (PA)
Element configuration: Spiral-Wound, FRP Wrapping
| Model no. | Replaces: | Dims. | Flow (GPD) | Rejection (%) | |
| Nominal | Min. | Nominal | |||
| RE2521-SHF | Replaces: | 2.5 x 21 inch | 270 |
99.0% | 99.4% |
| SW30-2521 |
Dimensions
SAME as SW30-2521
SPEC'S SHEET:
https://www.csmfilter.com/upload/csm/swe/12.%20RE2521-SHF_190313_PMK.pdf