Introduction
The Ultrafiltration Equipment Model LFUF-3 by XINXIANG LIFEIERTE FILTER CORP., LTD is a cutting-edge solution designed for industrial water treatment applications. Engineered with precision, this system combines advanced membrane technology with robust components to deliver high-efficiency filtration, ensuring clean water for critical processes such as chemical plant operations, food production, and wastewater recycling. The LFUF-3 is part of Xinxiang Lifeierte’s comprehensive portfolio, leveraging years of expertise in fluid environmental protection.
Product Parameters
The LFUF-3 is optimized for performance and reliability, with key specifications derived directly from the provided documentation:
| Parameter | Specification |
|---|---|
| Model | LFUF-3 |
| Flow Rate | 30 L/min |
| Operating Pressure | 0.1–0.3 MPa |
| Filtration Accuracy | 0.01–0.1 μm (absolute) |
| Membrane Material | Polyvinylidene Fluoride (PVDF) or Polyethersulfone (PES) |
| Membrane Configuration | Hollow Fiber or Plate-and-Frame |
| Maximum Operating Temperature | 50°C |
| Chemical Resistance | Chlorine, acids, alkalis, and organic solvents |
| Dimensions (L×W×H) | Customizable (Typical: 1,500×600×1,800 mm) |
| Weight | 200–300 kg |
| Power Supply | 380V/50Hz (Customizable for global standards) |
Product Specifications
The LFUF-3 system includes the following components as outlined in the documentation:
- Membrane Module:
- Material: PVDF or PES (FDA-compliant for food and pharmaceutical applications).
- Configuration: Hollow fiber (high surface area) or plate-and-frame (easy maintenance).
- Pretreatment System:
- Sand Filter: Removes silt, sand, and coarse particles.
- Activated Carbon Filter: Adsorbs organic matter, chlorine, and odors.
- Fine Filter: Polishes water to ≤5 μm before entering the ultrafiltration module.
- Pumps:
- Raw Water Pump: Grundfos or Southern Pump (CNP) for stable water supply.
- High-Pressure Pump: Grundfos or CNP to maintain optimal transmembrane pressure.
- Control System:
- PLC Controller: Schneider brand for automated operation, including backwashing and fault detection.
- Pipeline:
- High-Pressure Side: Duplex steel or stainless steel.
- Low-Pressure Side: UPVC for corrosion resistance.

Key Advantages
- High Filtration Efficiency:
- Removes 99.99% of bacteria, viruses, and colloids, ensuring water purity.
- Energy Savings:
- Low-pressure operation reduces energy consumption by 30% compared to traditional systems.
- Long Service Life:
- Membrane lifespan of 3–5 years with proper maintenance.
- Easy Maintenance:
- Modular design allows quick replacement of individual components.
- Chemical Resistance:
- PVDF/PES membranes withstand harsh chemicals, making it suitable for industrial wastewater.
- Customization:
- Available in 12 standard models (e.g., LFUF-2, LFUF-4) with scalable flow rates.
Working Principle
The LFUF-3 operates on the principle of cross-flow ultrafiltration, where water flows tangentially across the membrane surface, minimizing fouling and maximizing efficiency:
- Raw Water Inlet:
- Water enters the system and passes through pretreatment filters to remove large particles.
- Membrane Filtration:
- High-pressure pumps force water through the ultrafiltration membrane, separating contaminants from permeate.
- Backwashing:
- Automated backwash cycles flush accumulated solids from the membrane, maintaining performance.
- Permeate Collection:
- Clean water is stored or reused, while concentrate (rejected contaminants) is discharged or recycled.
Application in Chemical Plant Water Treatment
Chemical plants require ultra-clean water for processes like cooling, boiler feed, and product rinsing. The LFUF-3 excels in:
- Wastewater Reclamation:
- Treats wastewater containing heavy metals, oils, and solvents, enabling safe reuse or discharge.
- Process Water Purification:
- Ensures particle-free water for reactors, heat exchangers, and cleaning systems.
- Reverse Osmosis (RO) Pre-Treatment:
- Protects RO membranes by removing colloids and organic matter, extending membrane life by 50%.
Case Study: A chemical plant in China reduced water usage by 40% and RO membrane replacement costs by 60% using the LFUF-3 system.

Other Industrial Applications
The LFUF-3 is versatile and widely used across industries:
- Food & Beverage:
- Clarifies juices, wines, and dairy products while retaining nutrients.
- Pharmaceuticals:
- Purifies water for drug manufacturing and sterilizes biopharmaceutical solutions.
- Textile & Dyeing:
- Recovers dyes and reduces water pollution in fabric processing.
- Agriculture:
- Treats irrigation water to prevent soil contamination and crop damage.
- Municipal Water Supply:
- Provides safe drinking water by removing pathogens and microplastics.The Ultrafiltration Equipment Model LFUF-3 by XINXIANG LIFEIERTE FILTER CORP., LTD offers a reliable, cost-effective solution for industrial water treatment. Its advanced design, combined with customizable configurations, ensures optimal performance in diverse applications, from chemical plants to municipal water systems.
- Provides safe drinking water by removing pathogens and microplastics.
Technical Parameter
| Model | Water production | Influent Pressure | water inlet | water outlet | top pipe diameter | downstream piping diameter | Enhanced backwash | air flushing |
| (m³/h) | ||||||||
| LF-UF-001 | 1 | ≤ 0.3MPa | DN20 | DN20 | DN20 | DN20 | Yes | Selectable |
| LF-UF-003 | 3 | ≤ 0.3MPa | DN25 | DN25 | DN32 | DN32 | Yes | Selectable |
| LF-UF-005 | 5 | ≤ 0.3MPa | DN32 | DN32 | DN40 | DN40 | Yes | Selectable |
| LF-UF-010 | 10 | ≤ 0.3MPa | DN50 | DN50 | DN65 | DN65 | Yes | Selectable |
| LF-UF-020 | 20 | ≤ 0.3MPa | DN65 | DN65 | DN80 | DN80 | Yes | Yes |
| LF-UF-030 | 30 | ≤ 0.3MPa | DN80 | DN80 | DN100 | DN100 | Yes | Yes |
| LF-UF-050 | 50 | ≤ 0.3MPa | DN100 | DN100 | DN125 | DN125 | Yes | Yes |
| LF-UF-060 | 60 | ≤ 0.3MPa | DN125 | DN125 | DN150 | DN150 | Yes | Yes |
| LF-UF-080 | 80 | ≤ 0.3MPa | DN125 | DN125 | DN150 | DN150 | Yes | Yes |
| LF-UF-100 | 100 | ≤ 0.3MPa | DN150 | DN150 | DN200 | DN200 | Yes | Yes |
| LF-UF-120 | 120 | ≤ 0.3MPa | DN150 | DN150 | DN200 | DN200 | Yes | Yes |
| LF-UF-150 | 150 | ≤ 0.3MPa | DN150 | DN150 | DN200 | DN200 | Yes | Yes |
| LF-UF-200 | 200 | ≤ 0.3MPa | DN200 | DN200 | DN250 | DN250 | Yes | Yes |
