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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:
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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
RO Membrane TW-8040-HF – High-Flow Reverse Osmosis Element
The RO membrane TW-8040-HF from Puritech is a high-performance reverse osmosis element designed for large-capacity water purification systems. This membrane fits standard 8″ × 40″ housings that are common in industrial and commercial RO plants. It delivers high permeate output while maintaining excellent rejection of dissolved salts and total dissolved solids (TDS), making it suitable for demanding water purification tasks. Aqua Hydr8
Built using thin-film composite (TFC) technology, this membrane combines strong chemical resistance, durability, and proven performance. This makes it a solid choice where high output and consistent water quality are critical, such as in office water stations, large residential RO systems, commercial kitchens, or light industrial applications.
Performance & Advantages
The RO membrane TW-8040-HF offers:
- High permeate flow: Delivers much higher water production compared with smaller 4040 or 2540 membranes, typically around 10 500 GPD (gallons per day) under standard test conditions.
- Strong salt rejection: Maintains ~98 % stabilized salt rejection to produce water with significantly lower dissolved solids.
- Efficient high-flow design: Suitable for systems where water demand is moderate to heavy, without sacrificing performance.
- Broad compatibility: Works in most standard 8″ membrane housings, allowing for easier integration or upgrades.
These features make the TW-8040-HF an excellent membrane for RO systems in settings that require greater output and high-quality purified water in a compact, efficient form.
Technical Specifications
The table below summarises the typical test data and operational range for the RO membrane TW-8040-HF based on industry standards:
| Specification | Details |
|---|---|
| Model | RO membrane TW-8040-HF |
| Membrane Size | 8″ × 40″ (standard industrial format) |
| Nominal Permeate Flow | ~10 500 GPD (~39.7 m³/day) |
| Stabilized Salt Rejection | ~98 % |
| Test Pressure | ~150 psi (≈10.3 bar) |
| Test Solution | 750 ppm NaCl @ 25 °C (standard lab test) |
| Operating pH Range | Continuous: ~2–11, Cleaning (short term): ~1–13 |
| Max Temp (Continuous) | ~45 °C |
| Max Pressure | ~600 psi (≈41 bar) |
| Max Feed SDI | ≤ 5 |
| Free Chlorine Tolerance | < 0.1 ppm (requires pre-carbon filtration) |
*Actual performance will vary with feedwater TDS, temperature, pressure, recovery and system design. Standard testing conditions provide a baseline figure.
How It Works
Reverse osmosis membranes like this RO membrane TW-8040-HF use a semi-permeable thin-film composite (TFC) film that allows water molecules to pass while rejecting most dissolved salts and contaminants. Under pressure from a pump, feedwater flows across the membrane surface. Clean water (permeate) diffuses through the membrane, while concentrated brine (reject water with higher TDS) exits as waste. This separation process dramatically improves water quality.
For ideal performance, these membranes should be paired with proper pre-filtration stages (such as sediment and carbon filters) to protect the element from particulates and chlorine damage.
Recommended Applications
This RO membrane, TW-8040-HF, is well-suited for:
- Commercial reverse osmosis systems requiring high daily water output
- Large residential RO plants with increased water demand
- Office and institutional water purifiers
- Food service and catering systems
- Pre-treatment for post-filters or polishing stages
Because of its high flow rate and robust rejection performance, it’s especially useful where water demand is high and quality matters.
Installation & Maintenance Tips
To maximise performance and membrane life:
- Pre-treat water with appropriate sediment and carbon filters.
- Flush new membranes before regular use to remove preservatives and stabilise performance.
- Monitor pressure and TDS levels regularly to ensure the system operates within design limits.
- Replace the membrane element if the permeate flow drops substantially or salt rejection declines.
Proper setup and maintenance help protect the membrane and ensure consistent water quality over time.
Conclusion
The RO membrane TW-4040-HF is a reliable, high-flow membrane element that balances output capacity with strong salt rejection for larger RO systems. Its standard 8040 size and high performance make it a great choice for commercial and demanding residential applications where water purity and production efficiency are priorities.
