PVDF UF Ultrafiltration Membrane Module LEFILTER Pre-RO Security Pretreatment Element

As essential front pretreatment equipment before all Reverse Osmosis membrane desalination systems, Coalescing Filter supporting UF membrane, also named Ultrafiltration membrane module, efficiently traps colloids, algae, bacteria and tiny suspended particles in raw industrial water. Installed directly upstream of the RO membrane system, the UF membrane module greatly reduces fouling speed of Reverse Osmosis membrane, extending RO service cycle and lowering regular chemical cleaning frequency. Combined with front security High Flow Filter, the Ultrafiltration membrane forms two-stage pre-filtration, stabilizing inlet water quality for all types of RO membrane element. All membrane products are classified under Water Filter Element (RO & UF Membrane), while our oil & gas purification gas filter element series support cross-industry matching for comprehensive fluid treatment projects.

Working Principle of PVDF UF Membrane Module

Raw feed water flows into the membrane housing and passes through dense PVDF hollow fiber tubes of the UF membrane. Small water molecules and soluble mineral ions penetrate the hollow fiber wall to form clear ultrafiltration permeate; colloids, macromolecular organics and microorganisms are fully intercepted on the outer surface of the Ultrafiltration membrane. Timely cross-flow backwashing flushes accumulated dirt from membrane surface, maintaining stable constant flux of the UF membrane module for months of continuous industrial operation without frequent shutdown maintenance.

Standard Performance Parameters

• Common Module Sizes: 4-inch, 8-inch PVDF UF membrane module

• Filtration Precision: 0.01μm hollow fiber interception

• Max Safe Operating Pressure: 0.6MPa

• Continuous Temp Range: 5℃ ~ 40℃

• Matching Downstream: All series RO membrane element

Every batch of PVDF Ultrafiltration membrane undergoes flux stability and anti-fouling testing before shipment, fully compatible with all industrial pure water and wastewater recycling equipment racks.

Four Major Product Advantages

1 Ultra-fine Interception Capacity
0.01μm hollow fiber UF membrane fully captures colloids that easily block downstream RO membrane element.

2 Permanent Hydrophilic PVDF Material
Modified Ultrafiltration membrane resists organic adhesion, easy regeneration via regular water backwash.

3 Standard Universal Module Size
Standard housing interface of the UF membrane module quick assembly before any RO membrane system.

4 Low Long-Term Operation Cost
Long service cycle of the Ultrafiltration membrane reduces spare part replacement expenses.

Main Application Fields

PVDF UF membrane module is widely used as pretreatment for municipal reclaimed water, food beverage raw water, chemical process water and electronic pure water production. As essential front filter of the Reverse Osmosis membrane system, it stabilizes long-term water production efficiency and cuts overall operation cost of desalination equipment.

Full PVDF UF membrane module Model List

LF-UF-4021, LF-UF-4046, LF-UF-160B, LF-UF-8060, LF-LM10, LF-LM15, LF-LM20

Other Related Products

Industrial BW Series Reverse Osmosis RO Membrane

FAQ About Ultrafiltration membrane

Q1 Why install UF membrane module before RO membrane element?
A1 The Ultrafiltration membrane intercepts colloids and algae to avoid rapid fouling of Reverse Osmosis membrane, reduce cleaning frequency greatly.

Q2 What material is industrial UF membrane made of?
A1 Standard product adopts hydrophilic PVDF hollow fiber filament with excellent acid and alkali resistance.

Q3 How frequent is backwashing for UF membrane module?
A3 Cross-flow backwash every 2–4 hours under normal raw water turbidity to clean dirt on Ultrafiltration membrane surface.

Q4 Can this UF membrane be used for industrial wastewater reuse?
A4 Matched with front high flow filter, this UF membrane module is ideal pretreatment for zero-discharge sewage projects.