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ULP series of ultra-low pressure aromatic polyamide compound membrane element newly developed by Vontron Membrane Technology Co., Ltd. can work under ultra low pressure to reach as high permeate flow and rejection same as regular low-pressure membrane element, and is applicable to desalination of surface water and underground water.
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Delivery and return
Delivery and return
Next day delivery in store
Buy before 6pm to receive your order next day.FREE
Next day delivery
Orders before 6pm from Monday to Saturday (or before 1pm on Sunday) will be delivered Next working day (except Northern Ireland and Highlands). Orders placed after 6pm (after 1pm on Sunday) or for Northern Ireland and Highlands will be delivered in 2 working days.29 USD
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In 2-3 working days. Pick up your parcel in one of the many diferent collection points available and during a wide range of hours.39 USD
Same day delivery in London:
Place your order before 13:00 to get it today!. If you order later on, you’ll receive it the next day and if you order on Sunday, you’ll receive it the next working day.59 USD
Shipping Information
Shipping Information
SHIPPING
Complimentary ground shipping within 1 to 7 business days In-store collection available within 1 to 7 business days Next-day and Express delivery options also available Purchases are delivered in an orange box tied with a Bolduc ribbon, with the exception of certain items See the delivery FAQs for details on shipping methods, costs and delivery timesComposition and care
Composition and care
Characteristics of wood :
- Hard, compact , fiberous and porous
- Good wood gives a rich, warm and beautiful surface.
Wood is used for the construction of:
- Floor, Furniture, Walls
- Incidental furnishing (lampshades, picture frames)
- Kitchen & restaurant ware
Description
Vontron ULP21‑2540 RO Membrane – Ultra‑Low Pressure 2.5″×40″
The Vontron ULP21‑2540 RO Membrane is part of the ULP (Ultra‑Low Pressure) series by Vontron. This RO membrane is built for low‑TDS and municipal water applications, delivering reliable filtration with reduced operating pressure. Specifically, the ULP21‑2540 offers ~750 GPD (~2.8 m³/day) nominal permeate flow and ~99% stable salt rejection in a compact 2.5″×40″ (2540) size. It’s ideal for applications where space is limited or where energy and pump cost reduction is required.
Key Features
- Ultra‑low pressure operation — works at roughly 2/3 the pressure of standard low‑pressure membranes.
- Capacity: ~750 GPD and ~99% salt rejection under test conditions.
- Compact size: 2.5″ diameter × 40″ length fits smaller vessels and retrofit systems.
- Designed for feedwater TDS < 2000 ppm (surface, underground, municipal).
- Durable design: Max operating pressure ~600 psi (~4.14 MPa) and feed temperature max ~45 °C.
- Technical Specifications
| Parameter | Value |
|---|---|
| Model | ULP21‑2540 |
| Active Membrane Area | ~30 ft² (~2.8 m²) |
| Rated Permeate Flow | ~750 GPD (~2.8 m³/day) |
| Stable Salt Rejection Rate | ~99.0% |
| Maximum Operating Pressure | ~600 psi (~4.14 MPa) |
| Maximum Feed Temperature | ~45 °C |
| Maximum SDI | ≤ 5 |
| pH Range (Operation) | 3 – 10 |
| pH Range (Cleaning) | 2 – 12 |
| Max Free Chlorine in Feed | < 0.1 ppm |
Why Choose the Vontron ULP21‑2540 RO Membrane?
If you’re looking for a compact membrane that offers strong performance with lower system pressure and energy cost, the Vontron ULP21‑2540 fits the bill. Because the element is designed for municipal or low‑salinity sources, you avoid the expense of higher‑pressure systems and oversized equipment. Moreover, its standard 2.5″×40″ size makes it easy to integrate into smaller or retrofit RO vessels.
Installation & Maintenance Tips
- Ensure proper pre‑treatment: feed water should meet SDI ≤ 5 and free chlorine < 0.1 ppm.
- On first use, flush the new membrane: 15‑25 minutes at low pressure, then 60‑90 minutes at full pressure; discard the first hour of permeate. Vontron Türkiye
- Monitor permeate flow and salt rejection; a drop may indicate fouling or membrane damage.
- Clean according to manufacturer guidelines; always stay within pH and temperature limits.
- Store spare membranes wet or in preservative solution (for example, 1% sodium bisulfite) when not in use.
Additional information
| Weight | 1.60 kg |
|---|---|
| Dimensions | 104 × 10 × 11 cm |
