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4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK
4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK – Bild 2
4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK – Bild 3
4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK – Bild 4
4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK – Bild 5
4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK – Bild 6
4040 RO Membrane | 4”×40” Reverse Osmosis Element (TFC) | STARK – Bild 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.

Note: 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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Beschreibung des Produkts

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.

Produkt-Parameter

Technical Parameters (typical values; model-dependent)

Membrane Type 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
Betriebsdruck ~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.

Anwendbare Industrie

  • 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

Vorteil Eins

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.

Vorteil ZWEI

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

Die Lebensdauer einer Umkehrosmoseanlage hängt von der Wasserqualität und der Wartung ab. In der Regel hält die Membran 2-3 Jahre, während das System selbst bei richtiger Pflege über 10 Jahre halten kann.

Ja, alle unsere Systeme sind vollständig anpassbar. Wir analysieren Ihren Wasserbericht und Ihren Anwendungsbedarf, bevor wir maßgeschneiderte Lösungen anbieten.

Unsere Produkte sind CE- und ISO 9001-konform und können auf Wunsch so gestaltet werden, dass sie spezifischen regionalen Vorschriften oder Industrienormen entsprechen.

Standardsysteme werden innerhalb von 7-15 Tagen ausgeliefert. Bei kundenspezifischen Aufträgen kann sich die Lieferzeit je nach Komplexität auf 20-25 Tage verlängern.

Ja. Wir bieten eine vollständige technische Dokumentation, eine Fernanleitung per Video und können auf Wunsch Techniker ins Ausland schicken.

Unser Angebot umfasst die komplette Umkehrosmoseanlage, die Schalttafel, die Pumpen, die Vorbehandlungseinheiten und alle erforderlichen Armaturen. Installationswerkzeuge und Ersatzteile können auf Anfrage mitgeliefert werden.

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