LF‑U‑4040‑H High‑Flux PVDF UF Membrane Module For Industrial RO Pre‑Treatment

Small‑medium industrial RO pure‑water‑making projects need effective pre‑treatment to reduce RO membrane fouling risk. LF‑U‑4040‑H uf membrane is high‑flux outer‑pressure uf membrane module. This ultrafiltration membrane adopts modified permanent hydrophilic PVDF hollow‑fiber material. This pvdf uf membrane can intercept colloids, algae and suspended solids efficiently, act as critical pre‑protection for downstream RO membrane. This industrial uf filter module fits small‑medium water‑treatment skid, widely used for food‑factory and municipal water‑station pre‑treatment.

High‑Flux UF Membrane Working Principle

Raw water flows outside hollow‑fiber of LF‑U‑4040‑H uf membrane. 0.01μm pore‑size of this uf membrane module traps colloidal particles, plankton and suspended impurities on fiber outer surface. Purified permeate‑water enters hollow‑fiber inner cavity and flows to downstream RO system. Periodic cross‑flow back‑washing washes away accumulated contaminants from ultrafiltration membrane surface, maintain stable water‑yield performance of pvdf uf membrane industrial uf filter module.

Core Performance Parameters

• Membrane Material:Modified permanent hydrophilic PVDF for uf membrane

• Nominal Interception Precision:0.01μm for uf membrane module

• Single Membrane‑Area:42㎡ for high‑flux ultrafiltration membrane

• Max Trans‑Membrane‑Pressure:0.6MPa for pvdf uf membrane

• Typical Matching Equipment:8‑inch /4‑inch RO membrane element for industrial uf filter module

Each LF‑U‑4040‑H uf membrane module passes fiber‑tensile‑strength and hydrophilic aging‑test before delivery, fits standard 4‑inch UF pressure‑vessel.

Five Main Product Advantages

1 Permanent Hydrophilic PVDF Hollow‑Fiber
Reduce organic‑pollutant adsorption for uf membrane.

2 High‑Flux Optimized Membrane‑Area
High water‑production capacity of uf membrane module for medium‑water‑system.

3 0.01μm Stable Interception Performance
Well‑protect downstream RO membrane for ultrafiltration membrane.

4 Good Chemical‑Resistance
Support sodium‑hypochlorite back‑wash for pvdf uf membrane.

5 Standard 4‑Inch Shell Dimension
Easy installation for industrial uf filter module existing rack.

Application Scenarios

LF‑U‑4040‑H uf membrane module is widely used as RO pre‑treatment ultrafiltration membrane for food‑factory pure‑water‑line, small‑medium municipal water‑station, industrial circulating water purification.

Full Model List

Full Model No.	Specification Introduction
LF‑U‑4021	Small‑size lab‑grade uf membrane, pilot‑test water‑equipment
LF‑U‑4040	Standard 4‑inch uf membrane module, general‑purpose industrial pre‑treatment
LF‑U‑4040‑H	High‑flux optimized ultrafiltration membrane, high water‑yield requirement project
LF‑U‑6040	Extra‑long 4‑inch pvdf uf membrane, medium‑large‑flow water‑skid

Other Related Products

LF‑ULP‑8040‑D Low‑Energy RO Membrane Element

FAQ

Q1 Can LF‑U‑4040‑H uf membrane module protect RO membrane element?
A1 Yes, it intercepts colloid and algae, greatly reduce organic fouling risk of downstream RO membrane.

Q2 What is recommended back‑wash cycle for ultrafiltration membrane?
A2 Under normal raw‑water turbidity, perform back‑wash every 2‑4 hours.

Q3 What chemical agent can be used for cleaning pvdf uf membrane?
A3 Sodium‑hypochlorite and citric‑acid for regular online chemical‑cleaning.

Q4 Is this industrial uf filter module suitable for MBR sewage‑tank immersion‑type usage?
A4 Outer‑pressure shell‑type module for clean raw‑water pre‑treatment, not for immersed MBR sewage application.

Q5 What is normal service‑life of uf membrane module?
A5 Normally 2‑3 years under qualified inlet‑water and standardized back‑washing maintenance.