Reliable Global Supply of Standard Custom Ultrafiltration Equipment

Reliable Global Supply of Standard Custom Ultrafiltration Equipment

As a professional factory focusing on the global supply of ultrafiltration equipment, LEFILIER provides standardized, customized and serialized UF water treatment products for engineering companies, system integrators and end-user factories worldwide. As a full-series configurable industrial liquid filter covering multiple working conditions, our supply range includes high-concentration processing Concentrated Ultrafiltration Membrane Equipment, high-precision graded filtration Dual Stage Ultrafiltration Equipment, mini skid-mounted Compact Small Scale Ultrafiltration Membrane Equipment and factory turnkey Complete Ultrafiltration Equipment to match all water yield and water quality demands from small workshops to large industrial parks. This paper introduces our complete ultrafiltration equipment supply system, membrane separation operating principle, unified industrial technical standards, strict production quality control & global delivery system, and cross-industry application scenarios, helping overseas purchasers obtain stable, cost-effective ultrafiltration products with timely delivery guarantee.

The supply of ultrafiltration equipment is not only simple finished product sales, but a full-chain service covering product R&D, personalized customization, batch production, quality inspection, packaging transportation and after-sales technical support. LEFILIER has standardized production lines for ultrafiltration membrane elements, stainless steel frame processing, automatic control cabinet assembly and pipeline prefabrication, supporting bulk order supply, project customized supply and spot stock supply at the same time to satisfy different procurement modes of global customers.

Our whole supply portfolio is divided into four core mainstream products displayed on the official website. For customers who need wastewater resource recovery, material concentration and solid-liquid separation projects, we supply dedicated Concentrated Ultrafiltration Membrane Equipment with optimized membrane flux and pollution resistance design. For pharmaceutical, electronic ultrapure water and high-standard drinking water projects requiring extremely low effluent impurities, the high-precision Dual Stage Ultrafiltration Equipment is supplied as a graded interception solution to improve finished water stability. For laboratories, small food workshops and mobile water treatment stations with small water consumption, spot supply of compact Compact Small Scale Ultrafiltration Membrane Equipment shortens the customer’s project construction cycle. For large factory overall water station renovation and new construction projects, we provide one-stop Complete Ultrafiltration Equipment including installation drawings, operation manuals and remote commissioning guidance.

All ultrafiltration equipment supplied by our factory adopts modified PVDF membrane as the core filter material, matched with 304 stainless steel frame and food-grade anti-corrosion pipeline fittings. The PLC control system supports independent parameter setting of backwashing, pressure difference alarm and chemical cleaning according to customer working conditions. For bulk export orders, we adopt seaworthy wooden box packaging with moisture-proof and shockproof treatment to avoid equipment damage during long-distance ocean transportation.

In the global water treatment supply chain, our ultrafiltration equipment is mostly used as the core pretreatment device of reverse osmosis systems, stably controlling RO influent SDI value below 3, effectively reducing the maintenance frequency of customers’ pure water production lines. Meanwhile, we support parameter modification of water output, material grade and control logic according to customers’ raw water test reports, realizing differentiated supply instead of single unified standard products.

The core physical separation principle of all ultrafiltration equipment supplied by our factory is pressure-driven cross-flow physical sieving separation. After raw water is pressurized by the matched feed pump to a stable operating pressure of 1.0 bar ~ 4.0 bar, fluid flows tangentially along the surface or inner wall of the built-in ultrafiltration membrane components at a fixed flow velocity.

Water molecules and dissolved small-molecule inorganic salts pass through the selective micropores of the membrane layer under pressure to form qualified clean produced water, which is collected and delivered to the clean water tank through the produced water pipeline. Pollutants such as suspended particles, colloidal flocs, microbial flora and organic macromolecules larger than the membrane molecular weight cutoff are intercepted on the membrane surface. High-speed tangential cross-flow continuously scours the membrane surface, carries most intercepted pollutants out of the equipment with concentrated drainage, slows down dirt deposition speed, and maintains long-term stable water production flux of the equipment.

In the whole supply business of ultrafiltration equipment, our factory implements full-process closed-loop quality control from raw material procurement, membrane production, parts processing to finished machine assembly and factory inspection. Each batch of membrane elements supplied with the equipment must pass 100% bubble point integrity test to eliminate defective products such as fiber fracture and membrane leakage, ensuring stable pollutant interception performance. Stainless steel frame welding adopts precision argon arc welding process, all water-wetted accessories are harmless anti-corrosion materials to prevent secondary water pollution.

Before delivery of each batch of supplied ultrafiltration equipment, FAT factory acceptance test must be completed by simulating actual water inlet working conditions to test water yield stability, pressure difference fluctuation, valve action response and automatic program execution logic. Goods can only be delivered after all indicators are qualified with formal inspection reports attached.

Our ultrafiltration equipment has ISO9001, CE, NSF61 global universal certifications. Under standardized operation and regular maintenance, the service life of PVDF hollow fiber membrane is 5–8 years, and tubular membrane can reach 6–8 years. For all customers purchasing our supplied ultrafiltration products, we provide long-term global spare parts supply, overseas shipping document sorting and free remote video installation guidance to solve the after-sales pain points of cross-border procurement.

Q1: What supply modes can your factory provide for ultrafiltration equipment?

A: We support three supply modes: spot stock supply for conventional standard models, customized production supply for project special parameters, and bulk batch bidding supply for large industrial park overall water station projects, with flexible delivery cycles matching customer demand.

Q2: Can the supplied ultrafiltration equipment remove salt ions and reduce the TDS value of produced water?

A: Ultrafiltration only intercepts particulate pollutants, colloids and microorganisms, salt ions can freely pass through membrane pores. If desalination is required, the supplied ultrafiltration equipment must be used as pretreatment matched with reverse osmosis systems.

Q3: What is the delivery cycle of your factory’s supplied ultrafiltration equipment?

A: Standard small and medium-sized equipment has spot stock with delivery within 3–7 working days; customized non-standard equipment delivery is 15–30 working days according to tonnage and modification content, and we can arrange priority production for urgent orders.

Q4: Will complete export customs documents be provided when supplying ultrafiltration equipment for overseas customers?

A: Yes, we provide commercial invoice, packing list, bill of lading supporting documents, product certification files and factory inspection reports required for customs clearance, helping customers smoothly complete import customs clearance procedures.

Q5: Is there a long-term spare parts supply guarantee for the ultrafiltration equipment purchased from your supply channel?

A: We reserve permanent production data of all supplied equipment models, provide original membrane elements, valves and control accessories with stable supply for long-term customers, avoiding difficult procurement of matching spare parts in the later period.

Q6: What improper operation behaviors will cause rapid flux attenuation of the supplied ultrafiltration membrane?

A: Long-term neglect of backwashing and chemical cleaning, excessive operating pressure, large particle impurities entering the membrane system without pretreatment will cause serious membrane fouling and continuous decline of equipment water production capacity.

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