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4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK
4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK - Imagem 2
4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK - Imagem 3
4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK - Imagem 4
4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK - Imagem 5
4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK - Imagem 6
4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK - Imagem 7

4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK

4040 Reverse Osmosis (RO) Membrane Element — thin-film composite (TFC) polyamide, 4” × 40” size, compatible with standard 4040 pressure vessels. Designed for brackish water, low-energy and fouling-resistant duties in commercial and light-industrial RO systems. Typical nominal salt rejection ≥ 99% with permeate flows in the 2,000–2,800 GPD range under standard test conditions.

Nota: Final performance depends on feed quality, temperature and operating pressure. We engineer the element selection to your water analysis and pretreatment.

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Descrição do produto

The STARK 4040 RO membrane uses a high-selectivity TFC polyamide layer to reject dissolved salts, silica and organics. It fits any standard 4040 housing, making it an easy retrofit for most commercial RO skids. Options include brackish-water high rejection, low-energy (LE) for reduced operating pressure, and fouling-resistant (FR) designs for challenging feeds.

  • Stable permeate quality: nominal rejection ≥ 99% on NaCl at 25 °C; smooth surface polyamide for consistent performance.
  • Energy flexibility: standard BW elements run ~150–225 psi; LE options target lower pressure at similar flux.
  • Serviceability: fits common 4040 vessels; EPDM brine seal; standard 3/4” interconnector ID.
  • Designed for pretreatment trains: pair with 20 µm → 5 µm cartridges, carbon/anti-scalant, and UF/clarification as needed to control SDI and biofouling.

Engineering transparency: All ratings are typical and configurable. Guarantees are confirmed against your feed analysis (TDS/SDI, temperature, chlorine, scaling indices) and the selected operating window.

Parâmetro do produto

Technical Parameters (typical values; model-dependent)

Tipo de membrana Thin-Film Composite (TFC) Polyamide
Element Size 4.0″ × 40″ (4040), OD ~3.9″, ID 0.75″
Active Area ~7.5–8.5 m² (80–90 ft²), depending on model
Nominal Salt Rejection ≥ 99.0% (BW); ≥ 99.2–99.5% for high-rejection variants
Typical Permeate Flow ~2,000–2,800 GPD (7.6–10.6 m³/d) at 25 °C, 2,000 ppm NaCl, pH 7, 15% recovery
Pressão de funcionamento ~1.0–1.6 MPa (150–225 psi) BW/LE; max 4.1 MPa (600 psi) per model limit
Feed Water Temperature 5–45 °C (flux rises with temperature)
pH Range (continuous / cleaning) 2–11 / 1–13
Free Chlorine Tolerance 0 mg/L (TFC polyamide is chlorine-sensitive; dechlorinate upstream)
Max Feed SDI < 5 recommended; lower for sensitive duties
Max Pressure Drop (per element) ≤ 1.0 bar (15 psi)
Recommended Recovery 10–20% per pressure vessel (system design-dependent)
End Connection Standard 4040 brine seal and interconnector; EPDM O-rings
Available Variants BW4040 (high rejection), LE4040 (low energy), FR4040 (fouling-resistant), SW4040 (seawater / higher pressure)
Test Conditions Note Unless stated otherwise: 2,000 ppm NaCl, 25 °C, pH 7, 15% recovery; your results vary with temperature and pressure.

Setor aplicável

  • Commercial & light-industrial RO systems for municipal/brackish feeds
  • Beverage & bottled water polishing
  • Boiler make-up & process water
  • Electronics pre-DI / polishing trains
  • Wastewater reuse after clarification/UF
  • Carwash, HVAC, humidification and rinsing lines

Vantagem Um

Advantage 1 — High Rejection with Flexible Energy Window

  • Nominal ≥ 99% salt rejection on NaCl with stable permeate conductivity.
  • Low-energy (LE) options to reduce pump pressure and operating cost.
  • Fouling-resistant (FR) construction available for difficult feeds.

Vantagem DOIS

Advantage 2 — Easy Retrofit & OEM Support

  • Compatible with standard 4040 pressure vessels and adapters.
  • OEM/Private label available; documentation and QC traceability provided.
  • Application engineering: element selection, pretreatment and dosing guidance based on your water analysis.

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FAQ

A vida útil de um sistema de osmose inversa depende da qualidade da água e da manutenção. Normalmente, a membrana dura 2-3 anos, enquanto o sistema em si pode durar mais de 10 anos com os cuidados adequados.

Sim, todos os nossos sistemas são totalmente personalizáveis. Analisamos o seu relatório de água e as necessidades da aplicação antes de fornecer soluções à medida.

Os nossos produtos estão em conformidade com a norma CE, ISO 9001, e podem ser concebidos para cumprir regulamentos regionais específicos ou normas industriais, mediante pedido.

Os sistemas standard são enviados no prazo de 7 a 15 dias. Para encomendas personalizadas, o prazo de entrega pode prolongar-se até 20-25 dias, dependendo da complexidade.

Sim. Fornecemos documentação técnica completa, orientação remota através de vídeo e podemos enviar engenheiros internacionalmente mediante pedido.

O nosso orçamento inclui o sistema RO completo, o painel de controlo, as bombas, as unidades de pré-tratamento e todos os acessórios necessários. As ferramentas de instalação e as peças sobresselentes podem ser incluídas mediante pedido.

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