As a professional water purification equipment ultrafiltration manufacturer, LEFILIER develops and produces full-series UF ultrafiltration products for global industrial water treatment and sewage reuse demands. As a customized industrial liquid filter with complete system support, our factory supplies matched Industrial Skid Mounted Ultrafiltration Equipment, anti-fouling Tubular Ultrafiltration Membrane, plug-and-play Integrated Ultrafiltration Water Purification Equipment and replaceable Ultrafiltration Membrane Filter to satisfy diversified working conditions from small workshops to large industrial parks. This paper elaborates the overall product system of manufacturer’s UF ultrafiltration equipment, internal separation principle, standardized technical indexes, strict factory quality inspection system and global industrial application scenarios, helping overseas buyers obtain stable, cost-effective UF ultrafiltration water purification solutions directly from the original manufacturer.
Professional UF Ultrafiltration Water Purification Equipment Manufacturer Solutions
As a professional water purification equipment ultrafiltration manufacturer, LEFILIER develops and produces full-series UF ultrafiltration products for global industrial water treatment and sewage reuse demands. As a customized industrial liquid filterwith complete system support, our factory supplies matched Industrial Skid Mounted Ultrafiltration Equipment, anti-fouling Tubular Ultrafiltration Membrane, plug-and-play Integrated Ultrafiltration Water Purification Equipment and replaceable Ultrafiltration Membrane Filter to satisfy diversified working conditions from small workshops to large industrial parks. This paper elaborates the overall product system of manufacturer’s UF ultrafiltration equipment, internal separation principle, standardized technical indexes, strict factory quality inspection system and global industrial application scenarios, helping overseas buyers obtain stable, cost-effective UF ultrafiltration water purification solutions directly from the original manufacturer.
We are a professional water purification equipment ultrafiltration manufacturer focusing on the R&D, production and customized processing of complete UF ultrafiltration water treatment systems. Different from intermediate traders, we independently produce core membrane materials, stainless steel frames, automatic control systems and supporting pipeline assemblies, realizing one-stop production from membrane raw materials to finished UF ultrafiltration water purification equipment. Our full product matrix is displayed on the official website, covering modular large equipment, integrated finished machines, core membrane consumables and small miniature equipment.
For large-scale centralized wastewater treatment and high-flow factory pure water pretreatment projects, our customized Industrial Skid Mounted Ultrafiltration Equipment adopts parallel membrane module layout, which can realize free capacity expansion and long-term continuous large-volume water supply. For most medium-sized enterprises with tight construction periods and limited installation space, the pre-assembled and fully debugged Integrated Ultrafiltration Water Purification Equipment is the mainstream off-the-shelf UF ultrafiltration product, which only needs pipeline and power connection on site to be put into operation quickly. When customers need to treat oily wastewater, electroplating wastewater, paint wastewater and high-suspended solids wastewater with serious membrane fouling risks, our self-produced anti-blocking Tubular Ultrafiltration Membrane is selected as the core filter medium inside the UF ultrafiltration system, with open flow channels supporting physical sponge ball cleaning to reduce irreversible membrane pollution. All finished UF equipment is equipped with our self-made standard Ultrafiltration Membrane Filter, and unified spare parts specifications make later membrane replacement and maintenance more convenient for customers.
All UF ultrafiltration water purification equipment produced by our manufacturer uses modified PVDF as the basic membrane material, matched with 304/316L stainless steel frame and food-grade anti-corrosion pipeline accessories. The built-in PLC intelligent control system supports automatic backwashing triggered by time or pressure difference, automatic fault alarm and operation data recording, realizing unattended automatic operation of the whole water purification system. As the core pretreatment equipment of reverse osmosis pure water production lines, our manufacturer’s UF ultrafiltration products can stably control the SDI of influent water below 3, effectively protect RO membrane elements from contamination and blockage, and greatly reduce the long-term operation and maintenance cost of customers’ water treatment stations.
Meanwhile, as a direct manufacturer, we can carry out personalized tonnage, material and control program modification according to customers’ raw water quality, water yield and site environment, providing exclusive UF ultrafiltration water purification equipment instead of unified standard products.
The core working mechanism of the UF ultrafiltration water purification equipment produced by our manufacturer is pressure-driven cross-flow physical sieving separation. After the raw water is pressurized by the system feed pump to the working pressure of 1.0 ~ 4.0 bar, the fluid flows tangentially along the surface or inner wall of the built-in ultrafiltration membrane elements at a stable flow velocity.
Water molecules and dissolved small molecular inorganic salts pass through the micropores of the membrane selective layer smoothly under pressure to form qualified clean permeate water, which is collected and delivered to the clean water tank through the water production 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. The high-speed cross-flow scours the membrane surface continuously, takes away most intercepted pollutants with concentrated water discharge, slows down the accumulation speed of dirt, and maintains stable water production flux for a long time.
Two sets of automatic maintenance logic are preset in the control program of our manufacturer’s UF ultrafiltration equipment. First is automatic periodic backwashing: the equipment uses self-produced clean water to reversely flush the membrane layer to peel off loose surface dirt, and the whole process runs automatically without manual intervention in daily operation. Second is regular CIP chemical cleaning: acidic liquid removes inorganic scale deposits, and alkaline liquid decomposes organic biofilm when backwashing cannot restore the rated water yield of the equipment. For the UF ultrafiltration system equipped with tubular membrane elements, we can add online sponge ball physical cleaning function to strengthen the cleaning effect for high-pollution wastewater working conditions.
Main membrane material: Modified industrial PVDF (self-developed formula); PES membrane for food & pharmaceutical sanitary grade
Optional MWCO grades: 30 kDa, 50 kDa, 100 kDa
Effective membrane pore size: 0.01 ~ 0.1 μm
Continuous working temperature: 5℃ ~ 45℃
pH tolerance: Continuous operation pH 2–11; short cleaning pH 1–13
Design operating flux: 20 ~ 85 LMH (adjusted by raw water pollution load)
Optimal working pressure: 1.5 ~ 3.0 bar
System overall water recovery rate: 82% ~ 93%
Effluent turbidity: Steadily lower than 0.1 NTU
Bacteria interception rate: ≥99.99%
Outlet water SDI ≤3, meets the inlet standard of reverse osmosis equipment
Frame material: 304 stainless steel standard, 316L stainless steel customized for corrosive water quality
Control system: PLC + touch screen automatic control, with remote monitoring optional customization
Automatic backwash cycle: 15 ~ 60 minutes adjustable
Standard chemical cleaning cycle: 2 ~ 6 months
Customizable water production: 0.5T/h ~ 200T/h full tonnage range
As a formal water purification equipment ultrafiltration manufacturer, we implement full-process quality control from raw material procurement, membrane spinning, component processing to finished machine assembly and factory inspection. Each batch of self-produced membrane elements must pass 100% bubble point leakage test to eliminate defective products such as fiber fracture and membrane pore damage. Stainless steel frame welding adopts argon arc welding process, and all water-contacting accessories are tested for harmlessness to avoid secondary water pollution.
Every finished UF ultrafiltration water purification equipment will complete FAT factory acceptance test before delivery: simulate actual water inlet conditions to test water yield stability, pressure difference change, valve action and automatic program operation logic, and deliver goods together with formal factory inspection report only after all indicators are qualified. Our products have obtained ISO9001 quality system certification, CE EU safety certification and NSF61 drinking water material certification.
Under standardized operation and regular maintenance, the service life of PVDF membrane produced by our factory can reach 5–8 years for hollow fiber and 6–8 years for tubular type. We provide long-term spare parts supply and global after-sales technical guidance for all customers purchasing equipment directly from the manufacturer, effectively solving the after-sales difficulties of purchasing products from traders.
The UF ultrafiltration water purification equipment produced by our manufacturer is exported to many countries and regions, widely used in the following industrial scenarios:
Factory pure water pretreatment: Remove colloids and microorganisms to protect downstream reverse osmosis membrane components
Industrial wastewater recycling: Tertiary treatment of biochemical wastewater for workshop flushing, cooling water replenishment and green irrigation
Municipal surface water purification: Purify river and lake water to make factory self-supplied production and domestic water
Food & beverage production water treatment: Purify brewing, dairy and juice process water to remove bacteria while retaining nutrients
Pharmaceutical purified water preparation: Remove pyrogen and endotoxin for pharmaceutical water production system
Electroplating, printing and dyeing, petrochemical wastewater treatment: Match tubular membrane to separate oily pollutants and realize wastewater reuse
Q1: What advantages does purchasing UF ultrafiltration equipment directly from the manufacturer have compared with buying from distributors?
A: Direct factory purchase supports personalized customization of equipment parameters and tonnage, lower overall purchase cost, complete original spare parts supply and professional original factory after-sales technical service, without intermediate markup and after-sales prevarication problems.
Q2: Can UF ultrafiltration water purification equipment remove salt ions and reduce the TDS value of water?
A: UF ultrafiltration only intercepts particles, colloids and microorganisms, dissolved salt ions can pass through membrane pores freely. If desalination is needed, UF equipment must be used as pretreatment matched with reverse osmosis system.
Q3: How long is the service life of the membrane produced by your ultrafiltration equipment manufacturer?
A: With regular automatic backwashing and periodic chemical cleaning, our self-produced PVDF hollow fiber membrane can work stably for 5–8 years, and tubular membrane can reach 6–8 years of service life.
Q4: Can your manufacturer modify the internal structure of UF ultrafiltration equipment according to customers’ special water quality?
A: As the original production manufacturer, we can adjust membrane layout, pipeline material, control logic and cleaning mode according to customers’ actual raw water test reports to adapt to special high-temperature, high-acid and high-pollution water quality.
Q5: Does the UF ultrafiltration equipment delivered by your factory include installation guidance and operation tutorials?
A: Each set of equipment is equipped with detailed paper and electronic operation manuals, and we provide remote video installation guidance and online technical troubleshooting for global overseas customers free of charge.
Q6: What will cause the rapid attenuation of membrane flux of UF ultrafiltration equipment?
A: Long-term neglect of backwashing and chemical cleaning, excessive operating pressure, unfiltered large particle impurities entering the membrane system will cause membrane fouling, resulting in continuous decline of equipment water yield.
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