{"product_id":"vontron-reverse-osmosis-membrane-lp11-4040","title":"Vontron Reverse Osmosis Membrane LP11-4040","description":"\u003ch1 data-start=\"569\" data-end=\"994\"\u003eVontron ULP11‑4040 \u003ca href=\"https:\/\/puritech.co.za\/product-category\/ro-membrane-elements\/vontron-membranes\/\"\u003eRO Membran\u003c\/a\u003ee – Ultra‑Low‑Pressure 4″×40″\u003c\/h1\u003e \u003cp data-start=\"608\" data-end=\"973\"\u003eThe \u003cstrong data-start=\"612\" data-end=\"646\"\u003eVontron ULP11‑4040 RO Membrane\u003c\/strong\u003e is an ultra-low-pressure (ULP) reverse osmosis element designed for municipal water, surface water, and low‑salinity applications. This high-performance \u003cstrong data-start=\"800\" data-end=\"815\"\u003eRO membrane\u003c\/strong\u003e 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.\u003c\/p\u003e \u003ch3 data-start=\"980\" data-end=\"1031\"\u003eKey Features of Vontron ULP11‑4040 RO Membrane\u003c\/h3\u003e \u003cul\u003e \u003cli data-start=\"1034\" data-end=\"1100\"\u003eUltra‑low pressure operation minimizes pump energy requirements.\u003c\/li\u003e \u003cli data-start=\"1103\" data-end=\"1171\"\u003eTypical permeate output of 2,700 GPD with 97.5–99% salt rejection.\u003c\/li\u003e \u003cli data-start=\"1174\" data-end=\"1222\"\u003eStandard 4″×40″ size ensures easy integration.\u003c\/li\u003e \u003cli data-start=\"1225\" data-end=\"1270\"\u003eSuitable for feedwater TDS up to 2,000 ppm.\u003c\/li\u003e \u003cli data-start=\"1273\" data-end=\"1340\"\u003eRobust operating limits: max 600 psi pressure, 45 °C temperature.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3 data-start=\"2043\" data-end=\"2072\"\u003eTechnical Specifications\u003c\/h3\u003e \u003cdiv class=\"_tableContainer_1rjym_1\"\u003e \u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\"\u003e \u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-start=\"2074\" data-end=\"3558\"\u003e \u003cthead data-start=\"2074\" data-end=\"2095\"\u003e \u003ctr data-start=\"2074\" data-end=\"2095\"\u003e \u003cth data-start=\"2074\" data-end=\"2086\" data-col-size=\"sm\"\u003eParameter\u003c\/th\u003e \u003cth data-start=\"2086\" data-end=\"2095\" data-col-size=\"lg\"\u003eValue\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody data-start=\"2118\" data-end=\"3558\"\u003e \u003ctr data-start=\"2118\" data-end=\"2140\"\u003e \u003ctd data-start=\"2118\" data-end=\"2126\" data-col-size=\"sm\"\u003eModel\u003c\/td\u003e \u003ctd data-start=\"2126\" data-end=\"2140\" data-col-size=\"lg\"\u003eULP11‑4040\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2141\" data-end=\"2223\"\u003e \u003ctd data-start=\"2141\" data-end=\"2164\" data-col-size=\"sm\"\u003eActive Membrane Area\u003c\/td\u003e \u003ctd data-start=\"2164\" data-end=\"2223\" data-col-size=\"lg\"\u003e~90 ft² (≈8.4 m²)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2224\" data-end=\"2337\"\u003e \u003ctd data-start=\"2224\" data-end=\"2248\" data-col-size=\"sm\"\u003eTypical Permeate Flow\u003c\/td\u003e \u003ctd data-start=\"2248\" data-end=\"2337\" data-col-size=\"lg\"\u003e~2,700 GPD (~10.2 m³\/day) under test conditions\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2338\" data-end=\"2421\"\u003e \u003ctd data-start=\"2338\" data-end=\"2362\" data-col-size=\"sm\"\u003eStable Rejection Rate\u003c\/td\u003e \u003ctd data-start=\"2362\" data-end=\"2421\" data-col-size=\"lg\"\u003e98.0% (typical)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2422\" data-end=\"2496\"\u003e \u003ctd data-start=\"2422\" data-end=\"2447\" data-col-size=\"sm\"\u003eMinimum Rejection Rate\u003c\/td\u003e \u003ctd data-start=\"2447\" data-end=\"2496\" data-col-size=\"lg\"\u003e97.5%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2497\" data-end=\"2766\"\u003e \u003ctd data-start=\"2497\" data-end=\"2518\" data-col-size=\"sm\"\u003eTesting Conditions\u003c\/td\u003e \u003ctd data-start=\"2518\" data-end=\"2766\" data-col-size=\"lg\"\u003eTest Pressure: 150 psi (1.03 MPa)\u003cbr\u003e Test Solution: 1,500 ppm NaCl, 25 °C, pH 7.5\u003cbr\u003e Recovery Rate: 15% (single element)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2767\" data-end=\"2860\"\u003e \u003ctd data-start=\"2767\" data-end=\"2797\" data-col-size=\"sm\"\u003eMax Feed Operating Pressure\u003c\/td\u003e \u003ctd data-start=\"2797\" data-end=\"2860\" data-col-size=\"lg\"\u003e600 psi (~4.14 MPa)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2861\" data-end=\"2955\"\u003e \u003ctd data-start=\"2861\" data-end=\"2877\" data-col-size=\"sm\"\u003eMax Feed Flow\u003c\/td\u003e \u003ctd data-start=\"2877\" data-end=\"2955\" data-col-size=\"lg\"\u003e~16 gpm (~3.6 m³\/hr) for 4040 size\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2956\" data-end=\"3028\"\u003e \u003ctd data-start=\"2956\" data-end=\"2979\" data-col-size=\"sm\"\u003eMax Feed Temperature\u003c\/td\u003e \u003ctd data-start=\"2979\" data-end=\"3028\" data-col-size=\"lg\"\u003e45 °C\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"3029\" data-end=\"3091\"\u003e \u003ctd data-start=\"3029\" data-end=\"3044\" data-col-size=\"sm\"\u003eMax Feed SDI\u003c\/td\u003e \u003ctd data-start=\"3044\" data-end=\"3091\" data-col-size=\"lg\"\u003e≤ 5\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"3092\" data-end=\"3173\"\u003e \u003ctd data-start=\"3092\" data-end=\"3120\" data-col-size=\"sm\"\u003eResidual Chlorine in Feed\u003c\/td\u003e \u003ctd data-start=\"3120\" data-end=\"3173\" data-col-size=\"lg\"\u003e\u0026lt; 0.1 ppm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"3174\" data-end=\"3259\"\u003e \u003ctd data-start=\"3174\" data-end=\"3208\" data-col-size=\"sm\"\u003epH Range (Continuous Operation)\u003c\/td\u003e \u003ctd data-start=\"3208\" data-end=\"3259\" data-col-size=\"lg\"\u003e3 to 10\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"3260\" data-end=\"3333\"\u003e \u003ctd data-start=\"3260\" data-end=\"3282\" data-col-size=\"sm\"\u003epH Range (Cleaning)\u003c\/td\u003e \u003ctd data-start=\"3282\" data-end=\"3333\" data-col-size=\"lg\"\u003e2 to 12\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"3334\" data-end=\"3432\"\u003e \u003ctd data-start=\"3334\" data-end=\"3371\" data-col-size=\"sm\"\u003eMax Pressure Drop (single element)\u003c\/td\u003e \u003ctd data-start=\"3371\" data-end=\"3432\" data-col-size=\"lg\"\u003e15 psi (~0.1 MPa)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"3433\" data-end=\"3558\"\u003e \u003ctd data-start=\"3433\" data-end=\"3455\" data-col-size=\"sm\"\u003ePhysical Dimensions\u003c\/td\u003e \u003ctd data-start=\"3455\" data-end=\"3558\" data-col-size=\"lg\"\u003eLength ≈ 1016 mm (40″)\u003cbr\u003e Outer Diameter ≈ 99.7 mm (3.9″)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003c\/div\u003e \u003ch3 data-start=\"3565\" data-end=\"3616\"\u003eWhy Choose the Vontron ULP11‑4040 RO Membrane?\u003c\/h3\u003e \u003cp data-start=\"3617\" data-end=\"3992\"\u003eBecause it blends \u003cstrong data-start=\"3635\" data-end=\"3651\"\u003ecompact size\u003c\/strong\u003e with \u003cstrong data-start=\"3657\" data-end=\"3689\"\u003ehigh capacity and efficiency\u003c\/strong\u003e, 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.\u003c\/p\u003e \u003ch3 data-start=\"1762\" data-end=\"1803\"\u003eBenefits of Using Vontron ULP11‑4040\u003c\/h3\u003e \u003cp data-start=\"1804\" data-end=\"2062\"\u003eThis \u003cstrong data-start=\"1809\" data-end=\"1824\"\u003eRO membrane\u003c\/strong\u003e 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.\u003c\/p\u003e \u003ch3 data-start=\"3999\" data-end=\"4035\"\u003eInstallation \u0026amp; Maintenance Tips\u003c\/h3\u003e \u003cul\u003e \u003cli data-start=\"4038\" data-end=\"4133\"\u003eEnsure \u003cstrong data-start=\"4045\" data-end=\"4062\"\u003epre‑treatment\u003c\/strong\u003e: feed silt density index (SDI) ≤ 5; free chlorine in feed \u0026lt; 0.1 ppm.\u003c\/li\u003e \u003cli data-start=\"4136\" data-end=\"4315\"\u003eOn initial startup, flush new element: 15‑25 minutes at low pressure, then 60‑90 minutes at design pressure. Discard the first hour permeate.\u003c\/li\u003e \u003cli data-start=\"4318\" data-end=\"4419\"\u003eMonitor permeate flow and rejection: declining performance may indicate fouling, scaling, or damage.\u003c\/li\u003e \u003cli data-start=\"4422\" data-end=\"4502\"\u003eClean according to manufacturer guidelines, observe pH limits (cleaning 2‑12).\u003c\/li\u003e \u003cli data-start=\"4505\" data-end=\"4630\"\u003eStore spares wet or in a protective solution (1% sodium bisulfite) if the system is idle.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Vontron","offers":[{"title":"Default","offer_id":45115696840773,"sku":"LP11-4040","price":2499.99,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/8627\/7445\/files\/vontro-ulp21-4040-reverse-osmosis-membrane_c16230c3-c0c4-40fd-9c7c-1864707f56f3.jpg?v=1780903082","url":"https:\/\/www.monstermechanical.co.za\/products\/vontron-reverse-osmosis-membrane-lp11-4040","provider":"Monster Mechanical","version":"1.0","type":"link"}