Vontron Reverse Osmosis Membrane LP11-4040

R2,499.99

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Besides, it is particularly applicable to the fabrication of high-purity water for the electronic industry and electric power industry owing to its excellent performance in removing soluble salts, TOC, SiO2, etc.

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Vontron ULP11‑4040 RO Membrane – Ultra‑Low‑Pressure 4″×40″

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The Vontron ULP11‑4040 RO Membrane is an ultra-low-pressure (ULP) reverse osmosis element designed for municipal water, surface water, and low‑salinity applications. This high-performance RO membrane reduces energy costs while maintaining excellent water quality. With a standard 4″×40″ size, it fits most RO systems for domestic and light industrial use.

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Key Features of Vontron ULP11‑4040 RO Membrane

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  • Ultra‑low pressure operation minimizes pump energy requirements.

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  • Typical permeate output of 2,700 GPD with 97.5–99% salt rejection.

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  • Standard 4″×40″ size ensures easy integration.

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  • Suitable for feedwater TDS up to 2,000 ppm.

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  • Robust operating limits: max 600 psi pressure, 45 °C temperature.

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Technical Specifications

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Parameter Value
Model ULP11‑4040
Active Membrane Area ~90 ft² (≈8.4 m²)
Typical Permeate Flow ~2,700 GPD (~10.2 m³/day) under test conditions
Stable Rejection Rate 98.0% (typical)
Minimum Rejection Rate 97.5%
Testing Conditions Test Pressure: 150 psi (1.03 MPa)
nTest Solution: 1,500 ppm NaCl, 25 °C, pH 7.5
nRecovery Rate: 15% (single element)
Max Feed Operating Pressure 600 psi (~4.14 MPa)
Max Feed Flow ~16 gpm (~3.6 m³/hr) for 4040 size
Max Feed Temperature 45 °C
Max Feed SDI ≤ 5
Residual Chlorine in Feed < 0.1 ppm
pH Range (Continuous Operation) 3 to 10
pH Range (Cleaning) 2 to 12
Max Pressure Drop (single element) 15 psi (~0.1 MPa)
Physical Dimensions Length ≈ 1016 mm (40″)
nOuter Diameter ≈ 99.7 mm (3.9″)

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Why Choose the Vontron ULP11‑4040 RO Membrane?

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Because it blends compact size with high capacity and efficiency, this membrane is a smart upgrade for systems treating municipal or low‑brackish water where energy cost and pump size matter. Its ultra-low-pressure design cuts operating cost and simplifies system design. Additionally, its proven brand and performance make it reliable for commercial installations.

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Benefits of Using Vontron ULP11‑4040

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This RO membrane ensures reliable, high‑quality water for domestic, commercial, and light industrial systems. It reduces operational costs, fits standard housings, and guarantees long-term performance. Perfect for retrofits and new installations alike.

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Installation & Maintenance Tips

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  • Ensure pre‑treatment: feed silt density index (SDI) ≤ 5; free chlorine in feed < 0.1 ppm.

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  • On initial startup, flush new element: 15‑25 minutes at low pressure, then 60‑90 minutes at design pressure. Discard the first hour permeate.

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  • Monitor permeate flow and rejection: declining performance may indicate fouling, scaling, or damage.

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  • Clean according to manufacturer guidelines, observe pH limits (cleaning 2‑12).

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  • Store spares wet or in a protective solution (1% sodium bisulfite) if the system is idle.

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Shipping policy

At our Company, we understand the importance of timely delivery. We offer a variety of shipping options to suit your needs, including standard, expedited, and express shipping. Our dedicated team works diligently to process and dispatch your orders promptly, aiming to deliver them to your doorstep within the estimated timeframe.

We strive to provide fast and reliable shipping to our customers. Here\\\’s everything you need to know about our shipping process:

  • Dispatch: Within 24 Hours
  • Free shipping across all products on a minimum purchase of $99.
  • International delivery time 5 to 7 business days
  • Cash on delivery might be available
  • Easy 30 days returns and exchanges

Please note that delivery times are estimates and may vary depending on factors such as product availability, destination, and carrier delay

Returns policy

We want you to be completely satisfied with your purchase from our website. If for any reason you are not entirely happy with your order, we\\\’re here to help. Certain exclusions and conditions may apply, so we encourage you to review our detailed return policy for more information. Rest assured, our goal is to ensure your complete satisfaction with every purchase you make from our website

  1. Returned items must be unused, undamaged, and in the same condition as received.
  2. Original tags, labels, and packaging must be intact and included with the returned item.
  3. Proof of purchase, such as your order confirmation or receipt, is required for all returns.

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