RO Membranes & Membrane Filtration — Saudi Arabia

RO Membranes & Membrane Filtration Supplier Saudi Arabia — SWRO, BWRO, NF, UF & MF Membrane Elements In Stock

Gulf Union Ozone supplies a complete range of reverse osmosis membranes, ultrafiltration modules, and microfiltration membranes for desalination and water treatment across Saudi Arabia. Our membrane portfolio covers seawater RO (SWRO) 8-inch elements at 99.7–99.8% NaCl rejection for Red Sea and Arabian Gulf applications, brackish water RO (BWRO) 4-inch and 8-inch elements at 10–25 bar for groundwater and industrial water desalination, nanofiltration (NF) membranes at 90–98% divalent ion rejection for softening and colour removal, ultrafiltration (UF) hollow fibre PVDF and PES modules with 0.02–0.1 µm pore size for SDI below 2 RO pre-treatment, microfiltration (MF) membranes at 0.1–0.5 µm for industrial filtration, alumina and titania ceramic membranes for chemically aggressive and high-temperature service, and FRP pressure vessels in 4-inch and 8-inch side-port and end-port configurations for 4 to 8 element arrays. Membrane brands: DowDuPont FilmTec, Toray, Hydranautics, Koch, and Pall. Standards: ASTM D4194, NSF/ANSI 58, ASME BPE for pharmaceutical. Approved for Saline Water Conversion Corporation (SWCC) and Saudi national desalination projects. ISO 9001:2015 certified (CR 4030570569). Stocked in Jeddah.

Submit RFQ
RO membranes and membrane filtration elements for desalination and water treatment in Saudi Arabia — Gulf Union Ozone Jeddah
StandardsASTM D4194 · NSF/ANSI 58 · ASME BPE · SWCC Approved Membrane Brands
BrandsDowDuPont FilmTec · Toray · Hydranautics · Koch · Pall
RangeSWRO / BWRO / NF / UF / MF / Ceramic · 4" & 8" Elements · FRP Vessels 4–8 Element
QualityISO 9001:2015 — Jeddah Warehouse · Saudi Nationwide Delivery
Membrane Element Categories

Product Types in Stock

Gulf Union Ozone stocks six membrane filtration product families spanning the complete pressure-driven membrane spectrum from microfiltration through to seawater reverse osmosis, together with the FRP pressure vessels and membrane housings required for complete system assemblies for Saudi Arabia desalination and water treatment plants.

Type 01

Seawater RO Membrane (SWRO, 8", 99.7–99.8% Rejection)

Thin-film composite (TFC) polyamide seawater reverse osmosis membrane elements in the industry-standard 8-inch by 40-inch format (8040 element), delivering 99.7–99.8% NaCl rejection at 55–80 bar operating pressure from Red Sea water (42,000–45,000 mg/L TDS) and Arabian Gulf water (45,000–50,000 mg/L TDS). Gulf Union Ozone stocks SWRO elements from DowDuPont FilmTec (SW30XLE-400, SW30HR-380 — the global benchmark for energy-efficient SWRO), Toray (TM820C-400 — approved by the Saline Water Conversion Corporation, SWCC), and Hydranautics (SWC5-LD — high-rejection, low energy design). Permeate flux: 9.9–10.6 m³/day per element at standard test conditions; typical installed flux in SWRO systems 12–15 L/m²/h (LMH) at 40–45% recovery. Maximum operating pressure 83 bar; maximum chlorine tolerance zero — feedwater must be fully dechlorinated with sodium metabisulphite (SMBS). Minimum SDI requirement: SDI15 below 4 for SWRO feed. Elements compatible with 8-inch FRP pressure vessels in 6-element or 7-element configurations (Codeline 80S, Pentair Codeline 80HP to 1,000 psi for high-pressure SWRO). Supplied with manufacturer performance data sheet and third-party test report per ASTM D4194. Applications: Saudi Arabia national desalination plants, SWCC Yanbu and Jubail facilities, power plant seawater intake treatment, private desalination for hotels and resorts on the Red Sea and Arabian Gulf coast.

Type 02

Brackish Water RO Membrane (BWRO, 4" & 8")

Thin-film composite (TFC) polyamide brackish water reverse osmosis membrane elements for treatment of groundwater, municipal secondary water, industrial process water, and cooling tower blowdown in Saudi Arabia at operating pressures of 10–25 bar and NaCl rejection of 99.4–99.5%. Available in 8-inch (8040) elements for large industrial and municipal systems — FilmTec BW30-400 (standard), BW30-365 (lower flux, higher rejection for quality-sensitive applications), and Toray TM720C-400 — and in 4-inch (4040) elements for medium-scale systems and skid-mounted point-of-use applications, including the Hydranautics ESPA2-LD-4040. BWRO operates at significantly lower energy consumption than SWRO: specific energy consumption 0.5–1.5 kWh/m³ versus 3–5 kWh/m³ for SWRO, making BWRO the preferred technology for Saudi Arabia groundwater desalination where well salinity is below 10,000 mg/L TDS. Typical recovery: 70–80% for groundwater with low scaling potential. Pre-treatment requirement: SDI15 below 5, turbidity below 1 NTU. Antiscalant dosing to the feed is essential for Saudi Arabia groundwater with high hardness and sulphate. FRP pressure vessels: 4-element or 6-element Codeline 40S (4-inch) or 80S (8-inch) side-port or end-port, pressure-rated to 300 psi (21 bar). Applications: factory and industrial process water, boiler feed pre-treatment (ahead of DM plant), hotel and commercial potable water, agricultural water conditioning, cooling tower make-up water across all Saudi regions.

Type 03

Nanofiltration Membrane (NF, Divalent Softening)

Nanofiltration (NF) membrane elements with pore sizes in the range 0.001–0.01 micrometres, positioned between ultrafiltration and reverse osmosis in the membrane spectrum. NF membranes are characterised by high rejection of divalent and multivalent ions (calcium, magnesium, sulphate — 90–99% rejection) while passing monovalent ions (sodium, chloride, potassium) at significantly lower rejection (20–50%), making NF ideal for water softening without full desalination, colour and natural organic matter (NOM/TOC) removal, and selective ion removal (nitrate, fluoride, barium) without substantially reducing mineral content. Operating pressure 6–15 bar — substantially lower energy requirement than RO. FilmTec NF270-400: 90–97% divalent rejection, 15.1 m³/day permeate flux at 7 bar, excellent for colour, TOC, and humic acid removal from surface water. FilmTec NF90-400: 97–99% divalent rejection, 12.2 m³/day flux, for applications requiring near-full divalent removal with reduced monovalent TDS. Hydranautics ESNA1-LF2-4040: 4-inch format for medium-scale systems. Applications in Saudi Arabia: partial softening of cooling tower make-up water (reduces sulphate scaling risk without full desalination), colour and TOC reduction in surface water treatment for industrial applications, nitrate and fluoride selective removal from potable water, and water conditioning ahead of ion exchange polishing to reduce regenerant consumption.

Type 04

UF Hollow Fibre Module (RO Pre-treatment, SDI<2)

Hollow fibre ultrafiltration (UF) modules with PVDF or PES membrane and pore sizes of 0.01–0.1 micrometres for reliable RO membrane pre-treatment delivering silt density index (SDI15) below 2 and turbidity below 0.1 NTU regardless of feedwater fluctuations. UF hollow fibre modules are the internationally accepted standard pre-treatment for SWRO systems exposed to Saudi Arabia Red Sea and Arabian Gulf seawater, where seasonal algal blooms, jellyfish proliferation, and high biological oxygen demand (BOD) can rapidly foul conventional multimedia pressure filters and cause SWRO membrane irreversible biofouling. PVDF hollow fibre membranes are resistant to the aggressive chemical enhanced backwash (CEB) protocols required: sodium hypochlorite (200–500 ppm) for biological fouling, citric acid for iron and manganese fouling. Outside-in flow configuration allows high-turbidity feedwater operation without internal fibre blockage. Gulf Union Ozone stocks UF modules from Pall (Aria AP-4, 0.02 µm, greater than 3.5 log virus removal), Koch Membrane Systems (HF-UF series, PVDF, 0.03 µm), and Toray (TORAYFIL HUF, 0.01 µm — achieves SDI below 1 consistently). Air backwash and reverse flow CEB cleaning restore permeability without manual intervention. Modular design allows capacity expansion by adding modules in parallel. Flow rates per module: 5–50 m³/h depending on model. Applications: pre-treatment for SWRO desalination, municipal surface water treatment, produced water treatment, industrial process water, and secondary wastewater treatment polishing ahead of RO in Saudi Arabia water reuse schemes.

Type 05

Ceramic Membrane (Chemical & Thermal Resistant)

Ceramic tubular and multichannel membranes in aluminium oxide (Al2O3) and titanium dioxide (TiO2) for microfiltration and ultrafiltration in chemically aggressive, thermally demanding, or solvent-containing process streams where organic polymer membranes are unsuitable. Key characteristics: pH operating range 0–14 (full acid and caustic CIP cleaning without membrane degradation), temperature resistance up to 400°C, no swelling or compaction under high pressure, and service life measured in decades rather than years. Pore sizes: 0.04 µm (alumina UF for colloid removal), 0.2 µm (titania MF for particulate removal), 0.8 µm (coarse MF). Atech Innovations Al2O3 tubular ceramic membranes: multichannel monolith design, cross-flow filtration, high-flux cleaning by backwash and CIP with NaOCl, NaOH, or HNO3. Pall Membralox TiO2 multichannel membranes: food-grade and pharmaceutical quality. Applications in Saudi Arabia oil and gas and petrochemical industry: produced water and oily water treatment (oil removal to below 10 mg/L), desalination pre-treatment for high-turbidity or high-oil feedwaters at power plant intakes, solvent recovery, pharmaceutical process filtration, and chemical plant process streams where chlorinated solvents or strong acids would destroy organic membranes. Cross-flow velocity requirement: typically 2–5 m/s for effective surface shear and fouling control.

Type 06

FRP Pressure Vessel & Membrane Housing (6/8-element)

Filament-wound fibreglass reinforced plastic (FRP) pressure vessels and SS 316L membrane housings for housing RO, NF, and UF spiral-wound membrane elements in 4-inch (100 mm) and 8-inch (200 mm) configurations. FRP pressure vessels are the industry standard for reverse osmosis system arrays, combining high pressure rating (300–1,000 psi / 21–69 bar), low weight, corrosion resistance to concentrate and permeate streams, and long service life exceeding 25 years. Gulf Union Ozone stocks Codeline/Pentair pressure vessels: 80S Series 8-inch vessels in 6-element and 7-element configurations rated to 300 psi (21 bar) for BWRO, NF, and UF; Codeline 80HP Series rated to 1,000 psi (69 bar) for SWRO seawater applications; Codeline 40S Series 4-inch vessels in 4-element and 6-element configurations rated to 300 psi. Side-port and end-port designs available — side-port is the standard for multi-element arrays allowing individual element sampling and permeate collection from each element position; end-port for single-element systems and pilot-scale testing. Interconnectors, brine seals, end caps, and anti-telescoping devices (ATDs) for FilmTec, Toray, and Hydranautics element compatibility supplied with each vessel. For pharmaceutical and hygienic applications, SS 316L membrane housings with tri-clamp connections, electropolished internal finish (Ra below 0.8 µm), and ASME BPE compliance are available in 4-inch and 8-inch sizes, rated to 150–300 psi, for BWRO and NF elements in pharmaceutical purified water and water-for-injection pre-treatment systems. Saudi Arabia stock: Jeddah warehouse.

Product Catalog

Complete RO Membranes & Membrane Filtration Range — 27+ Products

All membrane elements supplied with manufacturer performance data sheets and test reports to ASTM D4194. NSF/ANSI 58 certification available for drinking water applications. FRP vessels supplied with pressure test certificates. ISO 9001:2015 QMS (CR 4030570569).

Brand / Model Element Size Rejection / Flux Operating Pressure Application
FilmTec SW30XLE-400 (DowDuPont) — SWRO 8" × 40" (8040) 99.8% NaCl rejection; 10.3 m³/day permeate flux 55–80 bar; max 83 bar SWRO seawater desalination — Red Sea and Arabian Gulf, SWCC projects Saudi Arabia
FilmTec SW30HR-380 (DowDuPont) — SWRO High Rejection 8" × 40" (8040) 99.7% NaCl rejection; 9.9 m³/day flux 55–80 bar High-rejection SWRO for low-salinity permeate requirement — double-pass systems
Toray TM820C-400 — SWRO (SWCC Approved) 8" × 40" (8040) 99.75% NaCl rejection; 10.5 m³/day flux 55–80 bar SWCC Yanbu and Jubail desalination plants — SWCC approved brand and model
Hydranautics SWC5-LD — SWRO Energy Efficient 8" × 40" (8040) 99.8% NaCl rejection; 10.6 m³/day flux 52–80 bar; low energy design Energy-efficient SWRO desalination, lower operating pressure option, Saudi Arabia coast
Koch TFC-SW — SWRO 8" × 40" (8040) 99.7% NaCl rejection 55–80 bar Seawater desalination, Red Sea and Arabian Gulf, private desalination systems
FilmTec BW30-400 (DowDuPont) — BWRO Standard 8" × 40" (8040) 99.5% NaCl rejection; 11.5 m³/day flux 10–25 bar; SDI <5 feed required BWRO industrial and municipal desalination, boiler feed pre-treatment, Saudi Arabia
FilmTec BW30-365 (DowDuPont) — BWRO High Rejection 8" × 40" (8040) 99.5% NaCl rejection; 10.2 m³/day flux 10–25 bar Quality-sensitive BWRO for boiler feed, pharmaceutical pre-treatment, Saudi Arabia
Toray TM720C-400 — BWRO Industrial 8" × 40" (8040) 99.5% NaCl rejection 10–25 bar Industrial and municipal BWRO desalination, high-reliability replacement element
Hydranautics ESPA2-LD-4040 — BWRO 4-inch 4" × 40" (4040) 99.4% NaCl rejection; 2.2 m³/day flux 10–25 bar; low energy design Small-scale BWRO, skid-mounted point-of-use systems, pilot plants
FilmTec TW30-4040 — Tap Water RO 4" × 40" (4040) 97–99% rejection; 3.6 m³/day flux 2–10 bar tap water pressure Commercial and point-of-use RO purification, low-TDS feed water
FilmTec NF270-400 (DowDuPont) — Nanofiltration 8" × 40" (8040) 90–97% divalent rejection; 15.1 m³/day flux 6–15 bar; low energy NF NF softening, colour/TOC/NOM removal, surface water treatment Saudi Arabia
FilmTec NF90-400 (DowDuPont) — High Rejection NF 8" × 40" (8040) 97–99% divalent rejection; 12.2 m³/day flux 6–15 bar Near-full divalent removal, nitrate/sulphate reduction, barium/strontium removal
Hydranautics ESNA1-LF2-4040 — NF 4-inch 4" × 40" (4040) 90–95% divalent rejection 5–14 bar Medium-scale NF softening, fluoride removal, small industrial systems Saudi Arabia
Pall Aria AP-4 UF Module (PVDF Hollow Fibre, 0.02 µm) Module — 37 m² membrane area >3.5 log virus removal; SDI <2; turbidity <0.1 NTU 0.5–3 bar TMP; air backwash SWRO and BWRO pre-treatment, surface water UF, municipal water treatment
Koch HF-UF Series PVDF (0.03 µm Hollow Fibre) Module — 33 m² membrane area >4 log bacteria removal; SDI <2 guaranteed 0.5–3 bar TMP; CEB cleaning RO pre-treatment SDI reduction, industrial water treatment, seawater UF
Toray TORAYFIL HUF PVDF (0.01 µm Hollow Fibre) Module — 50 m² membrane area SDI <1; turbidity <0.02 NTU; >4 log protozoa removal 0.5–3 bar TMP SWCC Yanbu/Jubail desalination pre-treatment; highest SDI performance
Siemens Memcor CP PVDF (0.2 µm, Pressurised Hollow Fibre) Module — 46 m² membrane area SDI <2; TSS <0.1 mg/L 0.5–2.5 bar TMP Large-scale RO pre-treatment, municipal water treatment, industrial UF systems
Pall Microza PVDF (0.1 µm, MF Outside-In) Module (MF) — 0.1 µm pore TSS <0.1 mg/L; bacteria removal >6 log 0.2–1.0 bar TMP Industrial pre-filtration, side-stream MF, high-turbidity feed pre-treatment
Atech Innovations Al2O3 Ceramic Tubular (0.04 µm UF) Tubular multichannel monolith; various lengths Colloid removal; pH 0–14 CIP resistant 2–6 bar; temperature to 200°C Oily produced water, chemical plant filtration, high-turbidity industrial feeds
Pall Membralox TiO2 Ceramic Multichannel (0.2 µm MF) Multichannel monolith; 19-channel elements Oil removal <10 mg/L; temp resistant to 400°C 2–8 bar; solvent and acid resistant High-temperature process filtration, pharmaceutical process streams, solvent filtration
Codeline 80S — 8" FRP Vessel, 6-element, Side Port 8" bore, 6-element capacity Rated 300 psi (21 bar); side-port permeate Up to 300 psi (21 bar) Standard BWRO and NF system arrays; industrial desalination plants Saudi Arabia
Codeline 80S — 8" FRP Vessel, 7-element, Side Port 8" bore, 7-element capacity Rated 300 psi (21 bar) Up to 300 psi (21 bar) Extended capacity BWRO; maximises system recovery per pressure vessel
Pentair Codeline 80HP — 8" FRP SWRO Vessel (1,000 psi) 8" bore, 7-element capacity Rated 1,000 psi (69 bar); side port Up to 1,000 psi (69 bar) — SWRO seawater SWRO seawater desalination — SWCC, power plant intakes, Saudi Red Sea / Gulf
Codeline 40S — 4" FRP Vessel, 6-element, Side Port 4" bore, 6-element capacity Rated 300 psi (21 bar) Up to 300 psi (21 bar) Medium-scale BWRO and NF systems, pilot plants, point-of-use RO Saudi Arabia
Codeline 40S — 4" FRP Vessel, 4-element, End Port 4" bore, 4-element capacity Rated 300 psi (21 bar); end port Up to 300 psi (21 bar) Small BWRO and NF systems, pilot plants, single train testing applications
SS 316L Membrane Housing — Pharmaceutical (ASME BPE) 4" and 8" bore, 1–6 elements; tri-clamp connections Electropolished Ra <0.8 µm; ASME BPE compliant Rated 150–300 psi (10–21 bar) Pharmaceutical RO purified water, SAUDIPHARM regulated facilities, food and bev
Antiscalant & RO System Chemicals (SMBS, CIP Acid/Alkali) 25 kg drums, 200 L drums, IBC totes Antiscalant: 1–5 mg/L dose; SMBS: dechlorination 3 mg/L per 1 mg/L Cl2 N/A — chemical consumable SWRO/BWRO antiscalant, sodium metabisulphite (SMBS), CIP citric acid, CIP NaOH
Why Us

Why Industrial Buyers in Saudi Arabia Choose Gulf Union Ozone for RO Membranes & Membrane Filtration

🌊

SWCC & Saudi Desalination Plant Approved Membrane Brands

Gulf Union Ozone supplies membrane elements from brands approved by the Saline Water Conversion Corporation (SWCC) for Saudi Arabia national desalination projects — including DowDuPont FilmTec, Toray, and Hydranautics. These brands meet the stringent qualification requirements for SWRO systems on the Red Sea and Arabian Gulf, where seawater TDS of 42,000–50,000 mg/L, high biological activity, and seasonal algal blooms demand the most robust and proven membrane element formulations available.

📈

Full RO System Consumables: Membranes, Antiscalant, Cartridge Pre-filters

Gulf Union Ozone is a one-stop supplier for all RO and membrane system consumables in Saudi Arabia — including replacement SWRO and BWRO membrane elements, antiscalant chemicals for Red Sea and Gulf water, sodium metabisulphite (SMBS) for dechlorination, 5-micrometre cartridge pre-filter elements, CIP acid and alkali cleaning chemicals, O-rings, brine seals, interconnectors, and ATDs. This eliminates multi-vendor sourcing for plant maintenance teams and reduces lead time on urgent replacements.

📋

ISO 9001:2015 Certified

All membrane elements and pressure vessels are procured and supplied under ISO 9001:2015 quality management system (CR 4030570569). Manufacturer performance data sheets, ASTM D4194 test reports, NSF/ANSI 58 drinking water certification (where applicable), and ASME BPE compliance documentation for pharmaceutical-grade membrane housings are provided with each supply. Traceability from lot number through manufacturer quality records is maintained for all products supplied to Saudi Arabia projects requiring full material documentation.

🗺

Jeddah Stock & Saudi Nationwide Delivery

Fast-moving SWRO and BWRO replacement membrane elements, UF modules, cartridge pre-filter elements, antiscalant chemicals, and FRP pressure vessel spares are stocked in Jeddah for immediate dispatch to desalination plant operators across Saudi Arabia — Yanbu, Jubail, Dammam, Riyadh, Madinah, Jizan, and all regions. ISO 9001:2015 certified (CR 4030570569). WhatsApp 966550988062 for urgent membrane replacement requirements.

Related Products

Also Stocked at Gulf Union Ozone

Water Treatment

Water Treatment Systems

Complete water treatment systems for Saudi Arabia — multimedia pressure filters, activated carbon filters, coagulation/flocculation, and packaged water treatment plants for industrial and municipal applications ahead of RO and membrane filtration.
Water Treatment

Water Softeners & Demineralizers

Duplex water softeners, two-bed DM plants, mixed bed polishers, and EDI modules for ion exchange post-treatment downstream of RO membranes — boiler feed water and ultrapure water systems for Saudi Arabia industrial facilities.
Water Treatment

Industrial Filters

Multimedia pressure filters, bag filters, cartridge filter housings, and self-cleaning strainers for RO and membrane system pre-treatment in Saudi Arabia — achieving SDI and turbidity targets for SWRO and BWRO membrane protection.
Water Treatment

Dosing & Metering Pumps

Chemical dosing pumps for antiscalant, SMBS dechlorination, coagulant, and pH adjustment injection into RO and membrane filtration systems — diaphragm and peristaltic pump types for Saudi Arabia water treatment plants.
Frequently Asked Questions

RO Membranes & Membrane Filtration in Saudi Arabia — Common Questions

What RO membrane types do you supply for Saudi Arabia seawater desalination and brackish water treatment?

Gulf Union Ozone supplies the full range of reverse osmosis membrane elements for Saudi Arabia desalination and water treatment. For seawater desalination from Red Sea and Arabian Gulf sources, we stock 8-inch SWRO elements from DowDuPont FilmTec (SW30XLE-400, SW30HR-380), Toray (TM820C-400 — SWCC approved), and Hydranautics (SWC5-LD) at 99.7–99.8% NaCl rejection and 55–80 bar operating pressure. For brackish water treatment — groundwater desalination, industrial process water, and boiler feed pre-treatment — we supply 4-inch and 8-inch BWRO elements at 99.4–99.5% rejection and 10–25 bar, including the FilmTec BW30-400 and Hydranautics ESPA series. For partial demineralisation, divalent softening, or colour and TOC reduction, nanofiltration (NF) membranes such as FilmTec NF270-400 (90–97% divalent rejection) are available at just 6–15 bar operating pressure. Pre-treatment SDI must be met — typically SDI15 below 4 for SWRO and below 5 for BWRO — and Gulf Union Ozone supplies multimedia filters, cartridge pre-filters, and UF hollow fibre modules to achieve these targets. Contact us with your feedwater analysis and system requirements for element model selection and system design assistance.

In Summary

Reverse osmosis membrane filtration removes dissolved salts, organics, and microbiological contaminants from seawater and brackish water at SWCC desalination plants, Saudi Aramco injection-water treatment systems, and industrial process water facilities. Gulf Union Ozone supplies Dow FILMTEC, Hydranautics, and Toray RO membrane elements for both SWRO (seawater) and BWRO (brackish water) applications — from 4-inch spiral-wound elements for small skids to 16-inch large-diameter membranes for SWCC mega-plants. Membrane housings in fibreglass, PVC, and ASME Section VIII stainless steel pressure vessels. Salt rejection rates of 99.8% at 800 psi operating pressure for SWRO elements designed for Arabian Gulf seawater at 40,000 ppm TDS.

How do I select between UF and MF pre-treatment for RO membranes in Saudi Arabia?

The choice between ultrafiltration (UF) and microfiltration (MF) for RO pre-treatment depends on feedwater quality and the RO membrane being protected. UF membranes at 0.01–0.1 micrometres are the preferred pre-treatment for SWRO and high-quality BWRO systems — they consistently deliver SDI below 2 and turbidity below 0.1 NTU regardless of feedwater fluctuations, including algal bloom events common in the Arabian Gulf and Red Sea. PVDF hollow fibre UF modules from Pall, Koch, and Toray use air backwash and chemically enhanced backwash (CEB) to maintain long-term performance. MF membranes at 0.1–0.5 micrometres are suitable for BWRO pre-treatment where feedwater quality is more consistent — well water with low SDI, pre-settled surface water, or secondary treated wastewater — where SDI below 3–4 is reliably achievable. MF operates at lower transmembrane pressure and lower capital cost than UF but is less reliable for variable quality feedwaters. For groundwater BWRO systems in Saudi Arabia with stable, low-turbidity well water, conventional dual-media pressure filters with 5-micrometre cartridge pre-filters may be sufficient as pre-treatment without UF or MF. Gulf Union Ozone can evaluate your feedwater quality and recommend the most cost-effective pre-treatment configuration.

In Summary

Pre-treatment before reverse osmosis membranes is critical for membrane longevity at Saudi sites exposed to red-tide algal blooms (Arabian Gulf) and high-turbidity conditions after Red Sea storms. Gulf Union Ozone supplies multimedia filtration vessels, ultrafiltration (UF) hollow-fibre membrane skids, cartridge filter housings with 5-micron nominal string-wound or pleated polypropylene elements, and anti-scalant dosing systems. Chlorination followed by dechlorination is required for biocide control without damaging polyamide RO membranes — chemical dosing packages with sodium hypochlorite and sodium bisulphite tanks and pumps are supplied as integrated pre-treatment systems.

What antiscalant and cleaning chemicals do I need for SWRO operation in the Red Sea and Arabian Gulf?

Antiscalant selection for SWRO in Saudi Arabia depends on source water chemistry. Red Sea water (42,000–45,000 mg/L TDS) has elevated sulphate and seasonal biological activity, requiring antiscalants effective against calcium carbonate, calcium sulphate, and barium sulphate at the concentrate end. Arabian Gulf water additionally contains higher silica and organic matter. The Langelier Saturation Index (LSI) and Stiff-Davis Index must be calculated for each source water at the target recovery rate — at 40–45% recovery typical for SWRO, concentrate LSI is substantially positive and requires antiscalant dosing at 1–5 mg/L on the RO feed. For cleaning-in-place (CIP) of fouled SWRO membranes, a two-stage protocol is standard: low-pH acid cleaning (2% citric acid at pH 2.0) for inorganic scale followed by high-pH alkaline cleaning (0.1% NaOH with SDS surfactant at pH 12) for biological and organic fouling. Maximum cleaning temperature for most polyamide TFC membranes is 45°C. Chlorine tolerance is zero — all RO feedwater must be dechlorinated with sodium metabisulphite (SMBS) before the membrane feed pump. Gulf Union Ozone supplies SMBS, antiscalant, CIP acid and alkaline chemicals for Saudi Arabia RO operations. WhatsApp 966550988062 for chemical compatibility advice on your specific feedwater.

In Summary

Gulf Union Ozone supplies RO membrane cleaning systems for SWCC and Saudi Aramco produced-water treatment plants including: cleaning-in-place (CIP) skids with chemical tanks, recirculation pumps, heating elements and pH probes; membrane autopsies (site or laboratory) for fouling analysis; and replacement membrane programs for planned five-year membrane changeouts at large desalination facilities. SWCC membrane procurement tenders on the Etimad platform are supported with full tender documentation including membrane datasheets, NSF/ANSI 61 certifications, and manufacturer approval-of-vendor letters.

Get a Quote

Request an RO Membranes & Membrane Filtration Quotation

To receive a fast quotation, provide: membrane type required (SWRO / BWRO / NF / UF / MF / ceramic), element size (4" or 8"), quantity and brand preference (FilmTec / Toray / Hydranautics / Koch / Pall), feedwater source (seawater / brackish / groundwater / process water), feedwater TDS and SDI, system operating pressure, FRP pressure vessel size and element count required (if applicable), and delivery location in Saudi Arabia.

Email Inquiry Submit RFQ Form

Recent Deliveries

  • • 8" SWRO membranes (FilmTec SW30XLE-400, 99.8% rejection) for a desalination plant expansion in Yanbu, 2026
  • • UF hollow-fibre modules for RO pre-treatment at a Jubail industrial facility, 2026
  • • NF membranes for nitrate removal in a municipal water treatment upgrade at Madinah, 2026

CR 4030570569 | ISO 9001:2015 | Jeddah, Saudi Arabia  —  Saudi Aramco vendor compliance · SAEP-347 credentials

Technical content reviewed by Gulf Union Ozone's Engineering Team, Jeddah — 2026

Inventory updated: September 2026

In Summary

RO membrane and filtration component delivery covers Saudi Arabia comprehensively from our Jeddah distribution point: Jubail and Dammam 48-72 hours for stock items, Al Khobar and Yanbu 72 hours, Riyadh 72-96 hours, Tabuk and Hail 96 hours. Emergency replacement membrane elements for critical desalination plants are available same-day from Jeddah bonded stock. Membrane pressure vessels, O-rings, and interconnectors are stocked in standard sizes for rapid MRO response. All membrane elements are supplied with manufacturer's quality certification and warranty documentation for SWCC and Aramco goods-receipt compliance.