Resources
- Description
- Warranty
- Shipping & Delivery
- Exchanges
4 x 40 Inch Brackish Water RO Element - 2000 Gallons Per Day
The BW low-pressure elements are low-pressure aromatic polyamide composite Reverse Osmosis membranes, widely used for desalination of surface water and groundwater. These membranes offer high desalination rates without impacting water production. They are typically applied in desalination treatment of brackish waters with relatively high salt content, as well as surface water, groundwater and tap water. They can also be used in projects such as wastewater reuse and concentration.
NSF/ANSI Standard 61 Certified
All PRM Reverse Osmosis elements are officially NSF 61 Certified for use with potable water.
Additionally, these membranes are manufactured without pre-chlorination, enabling chemical cleaning across a wide pH tolerance range (pH 1–13) and delivering consistent long-term rejection performance.
Specifications:
| Part Number | BW4040-LF |
| Stable salt rejection rate(%) | 99.5 |
| Inlet grill thickness(mil) | 31 |
| Average flow GPD(m³/d) | 2400 (11.0) |
| Membrane area ft²(m) | 94.7(8.8) |
| Max. Working pressure | 600psi(4.14MPa) |
| Max. Feed Water Flow | 4.4 gpm (3.6m³/h) |
| Max. feed Water Temperature | 32-113 F (0-45C) |
| Maximum Feed Water SDI. | <5.0 |
| Residual chlorine concentration in feed water | <0.1mg/L |
| Maximum allowable pressure drop of a single membrane element | .15psi(0.1MPa) |
Cross References:
Our RO membranes serve as drop in replacements for industry standard models, including:
| FilmTec | BW30 PRO-4040 |
| LG | BW 4040 ES |
| Hydranautics | ESPA4-LD-4040 |
| CSM | RE4040-BE |
| GE Veolia | AG4040FF |
| Toray Industries | TM710 |
| Axeon Water Tech | HR5-4040 |
A. If not satisfied with a PRM product for any reason, customers should contact PRM. Returns submitted within 30 days of the original invoice and must be in original packaging and in new condition. Please contact PRM to provide additional information regarding a return.
B. PRM Limited Warranties are applicable to PRM branded products, non-transferable, and warrant against manufacturer defects in workmanship and materials under normal use for 1 year after the date of the PRM invoice unless otherwise stated. If PRM approves the product is accepted for return during the limited warranty period, PRM may repair, replace, or refund the amount paid by the customer.
C. Non-PRM branded products retain their manufacturer's warranty. Customer should contact the manufacturer for warranty service.
D. PRM is not liable for claims arising out of product misuse, improper product selection, improper installation, and/or product modification. PRM's liability in all events is limited to the purchase price paid for the product.
The vast majority of PRM products ship directly from our facility within one business day. High value items such as blowers, pumps, and fans may have extended lead times due to global supply. Please consider contacting PRM prior to your purchase if it's necessary to know an exact delivery date and time.
IMPORTANT: All goods must be inspected immediately upon delivery. Any shipping damage, missing items, or product defects must be reported to both PRM Filtration and the shipping carrier within 24 hours of delivery. Failure to report issues within this timeframe may result in your claim being denied. Please retain all original packaging materials, as they may be required for filing a damage claim.
Product Recovery Management, Inc. Returns/Exchanges
200 20th Street
Butner, North Carolina 27509.
Do not send us a damaged or defective item for exchange prior to contacting us. We will then contact you regarding your return. We cannot accept exchanges unless we have responded to your request.
