Pressurized UF Membrane Modules (TIPS PVDF / 0.03µm)

// MODULE-02 / PROCUREMENT STRATEGY

Dual-Track Procurement.
Zero Compromise.

As a global turnkey integrator, we understand that every project has different CapEx limits. We offer two distinct procurement tracks to secure your supply chain.

Zero-Tolerance Projects

100% Genuine Tier-1 Brands

For government-funded municipal drinking water plants where brand specification is mandatory. We leverage our massive integrator purchasing power to supply factory-fresh modules directly from global warehouses.

DuPont™ SUEZ® Scinor® Microza®

CapEx Optimization

WANDONG OEM Equivalents

For industrial RO pretreatment and wastewater reuse. Achieve 100% of Tier-1 performance at 60% of the cost. Utilizing identical TIPS PVDF chemistry and exact Victaulic port dimensions for a seamless, pipe-cutting-free retrofit.

WANDONG MEMBRANE

// MODULE-03 / SPECIFICATION MATRIX

Universal Rack Compatibility.

Standardized testing conditions. Data represents typical values for WANDONG OEM equivalents.

WANDONG Nomenclature

WD

+

UF

+

2880

Drop-In Replacement Targets

DATA SOURCE: OEM TECHNICAL BULLETINS

Application Class	DuPont™ Target	SUEZ® Target	WANDONG OEM Equivalent
Standard 8-Inch (60" Length) 51 m² Active Area	SFP-2860 / SFD-2860	-	WD-UF-2860 MATCH
High Yield 8-Inch (80" Length) 77 m² Active Area	SFP-2880 / SFD-2880	-	WD-UF-2880 MATCH
SUEZ Rack Replacement 55.7 m² Active Area	-	ZeeWeed® 1500	WD-UF-1500 MATCH

WANDONG OEM Verified Parameters

Model	Membrane Area m² (ft²)	Pore Size (µm)	Fiber ID/OD (mm)	Filtration Mode	Typical Flux (LMH)
WD-UF-2860	51 (549)	0.03	0.7 / 1.3	Outside-In	40 - 100
WD-UF-2880	77 (829)	0.03	0.7 / 1.3	Outside-In	40 - 100
WD-UF-1500	55.7 (600)	0.02	0.66 / 1.1	Outside-In	45 - 110

* Performance Disclaimer: Data represents typical values and does not constitute a guaranteed minimum. Actual field performance may vary depending on feed water characteristics and system design.

Process Engineer's Note: Flux vs. TMP Dynamics

While our 80-inch modules (WD-UF-2880) provide 50% more active area than the 60-inch versions, operating them at the absolute maximum flux (100 LMH) in high-turbidity water will exponentially increase Transmembrane Pressure (TMP). We recommend a conservative design flux of 50-60 LMH to maximize the lifespan of the PVDF fibers and reduce CEB frequency.

// MODULE-04 / MECHANICAL COMPATIBILITY

Zero Pipe Cutting.

Replacing UF modules shouldn't require a plumbing crew. WANDONG OEM modules are engineered with exact Victaulic® grooved connections and identical center-to-center dimensions. Unclamp the old DuPont/SUEZ module, slide ours in, and clamp it down. Done.

Physical Specifications (WD-UF-2880)

Module Dry / Wet Weight

61 kg / 100 kg

Housing Material

UPVC

Feed / Concentrate Ports

DN50 (2-inch) Victaulic

Filtrate Ports

DN50 (2-inch) Victaulic

2360mm Overall Length

225mm Outer Diameter

2130mm Port Center Dist.

WD-UF-2880

Filtrate (2")

Feed (2")

L: 2360 mm

// MODULE-05 / ENGINEERING ANATOMY

Deconstructing the TIPS PVDF Core.

Fiber breakage is the #1 cause of RO failure. Explore the high-tensile architecture designed to withstand aggressive air scouring and chemical cleaning without snapping.

3D Cross-Section of TIPS PVDF Hollow Fibers and Epoxy Potting

Hollow Fiber Architecture

1. TIPS PVDF Hollow Fibers

Manufactured using Thermally Induced Phase Separation (TIPS). This creates a highly crystalline, sponge-like structure with a massive tensile strength. Unlike cheap NIPS fibers, our fibers will not stretch or break under severe backwashing pressure.

2. Outside-In Flow Configuration

Raw water flows from the outside of the fiber to the inside. This provides a significantly higher tolerance for suspended solids (up to 300 mg/L) compared to Inside-Out designs, preventing the fiber lumens from plugging.

3. Air Scour Capability

The Outside-In design allows for vigorous air scouring from the bottom of the module. Bubbles physically scrub the outside of the fibers, easily dislodging accumulated sludge and restoring flux without harsh chemicals.

4. Epoxy Resin Potting

The thousands of fiber ends are cast in a proprietary, high-density Epoxy/PU resin block. This ensures absolute separation between the raw water and filtrate zones, guaranteeing zero bypass of bacteria or pathogens.

// MODULE-06 / OPERATING LIMITS

Comprehensive Operating Limits.

Strict adherence to these parameters ensures optimal performance and validates the 12-month limited warranty.

Maximum Inlet Pressure	3.0 bar (0.3 MPa)
Typical Operating TMP	≤ 1.5 bar (0.15 MPa)
Maximum Backwash Pressure	1.5 bar (0.15 MPa)
Operating pH Range	2 - 11
Cleaning pH Range (CIP)	2 - 12
Maximum Operating Temperature	104°F (40°C)
Maximum Feed Turbidity	≤ 50 NTU (Max 300 NTU peak)
Max Chlorine Exposure (NaOCl)	5,000 ppm (for CIP)

Filtrate Quality Guarantee

Turbidity: ≤ 0.1 NTU (100% removal of suspended solids > 2µm).
SDI: ≤ 2.5 (Provides maximum protection for downstream RO).
Pathogens: > 4-log removal of bacteria, viruses, and Cryptosporidium.

System Startup Protocol

Avoid abrupt pressure variations during start-up to prevent fiber damage.

1. Preservative Flush: Flush the module to remove shipping solution (Glycerin/SMBS) prior to start-up.
2. Air Purge: Remove residual air from the system via top vents prior to applying feed pressure.
3. Pressure Ramp: Max pressure change allowable is 0.5 bar/sec.

// MODULE-08 / SELECTION GUIDE

Rack-Based Element Selection.

Selecting the correct UF module is dictated by your existing skid dimensions and header pipe configuration. Choose your exact drop-in replacement below.

60-Inch Length

Standard Retrofit (51 m²)

WD-UF-2860 Series

The industry standard for compact RO pretreatment skids. 100% physically compatible with DuPont™ SFP-2860 and SFD-2860 racks.

Standard Choice

80-Inch Length

High-Yield Upgrade (77 m²)

WD-UF-2880 Series

Maximizes permeate production per square meter of floor space. Direct drop-in replacement for DuPont™ SFP-2880 and SFD-2880.

Currently Viewing

SUEZ® Compatible

ZeeWeed® 1500 Retrofit

WD-UF-1500 Series

Engineered specifically to match the unique port configurations and 55.7 m² active area of the SUEZ/GE ZeeWeed® 1500 pressurized modules.

Specialized Retrofit

// MODULE-09 / APPLICATION SCENARIOS

The Universal Pre-Treatment.

From seawater desalination to municipal drinking water. Our UF modules provide consistent, crystal-clear filtrate regardless of raw water fluctuations.

RO Pre-Treatment

Guarantees SDI < 2.5, extending RO membrane life and reducing CIP frequency.

Municipal Drinking Water

Absolute physical barrier against pathogens, ensuring WHO-compliant potable water.

Wastewater Tertiary Reuse

Upgrading secondary effluent to high-quality industrial process water.

Food and Beverage Processing UF Clarification System

Food & Beverage

Clarification and sterilization of mineral water, juices, and biological products.

// MODULE-10 / FACTORY & INVENTORY

TIPS Spinning Technology.

We control the entire supply chain, from raw PVDF resin to the final potted module. Our automated TIPS (Thermally Induced Phase Separation) spinning lines ensure every single hollow fiber possesses uniform 0.03µm pores and unbreakable tensile strength.

Automated Epoxy Potting Lines

100% Pressure Decay Integrity Tested

Massive Stock of 8-inch Modules

Automated TIPS PVDF Hollow Fiber Spinning Machine

Massive Warehouse Stock of 8-inch UF Membrane Modules

UF Module Pressure Decay and Integrity Testing

// MODULE-11 / PROVEN IN THE FIELD

Powered by WANDONG.

We don't just sell components; we build the heavy-duty systems that rely on them. Our UF modules are the beating heart of our own Containerized UF Skids and RO Pretreatment plants deployed across the globe.

The Integrator's Advantage

Because we use these exact modules in our own $500,000+ EPC projects, they undergo rigorous internal quality control that pure trading companies simply cannot match. We stake our entire plant's performance on these elements.

WANDONG Containerized UF Skid with Vertical Modules and Manifolds

FIELD DEPLOYMENT

WANDONG Turnkey UF Skid

Showcasing a row of vertical UF modules connected to the main header.

// MODULE-12 / THE ENGINEER'S UNBOXING

Built for the Field.
Delivered with Certainty.

We don't just ship a plastic tube. We deliver a risk-free deployment experience engineered for remote sites and harsh environments.

Industrial-Grade Traceability

High-contrast waterproof labels with exact specs, batch numbers, and a unique serial number (S/N). Matched to our OEM database to eliminate gray-market risks. No guessing for your field team.

Integrity Test Certificate

Open the box and find the hardcopy Pressure Decay Test Certificate right on top. Out-of-the-box trust that guarantees zero broken fibers before installation.

Export-Grade Preservation

Modules are shipped wet, preserved in a Glycerin/SMBS solution, and sealed with heavy-duty end caps. Encased within rigid telescopic cartons engineered to resist harsh global transit.

// MODULE-13 / LOGISTICS MATRIX

Optimized for Global Transit.

We speak the language of freight forwarders. CBM optimized for mass FCL sea-freight.

Single WD-UF-2880 Carton

Dimensions (L×W×H)

~2420 × 380 × 360 mm

Gross Weight

~65 kg (143 lbs)

Net Weight

~61 kg (135 lbs)

Volumetric Weight

~66 kg (Air-Freight)

* Values are industry-standard approximations including heavy-duty export packaging.

Standard Pallet

12 pcs

Custom Wooden Pallet, Shrink-wrapped

40ft Container

~240 pcs

FCL Loading Capacity

// MODULE-14 / GLOBAL O&M SUPPORT

Direct Access to Senior Process Engineers.

UF systems require precise CEB (Chemically Enhanced Backwash) sequences. Our clients get direct WhatsApp and Email access to our senior engineers for PLC sequence optimization, CIP chemical dosing formulas, and fouling diagnostics.

CEB / CIP Formulas PLC Sequence Support 24/7 Standby

Chat with Engineer Email Support Desk

// MODULE-15 / TECHNICAL FAQ & WARRANTY

Hardcore FAQ.
Engineering-Grade Answers.

Why choose Outside-In over Inside-Out filtration?

Solids Tolerance and Cleanability.

In Inside-Out modules, dirty water flows through the tiny inner lumen of the fiber. If a large particle enters, it permanently plugs the fiber.

Our Outside-In configuration allows dirty water to flow on the outside of the fibers. This provides a massive surface area for high suspended solids (up to 300 mg/L) and allows us to use vigorous Air Scouring from the bottom to shake off the sludge during backwashing.

Are your modules compatible with my existing DuPont/Dow rack?

Yes. Our WD-UF-2880 and WD-UF-2860 modules are engineered with the exact same dimensions, port center distances, and 2-inch Victaulic® grooved connections as the DuPont™ IntegraTec™ (formerly Dow™ SFP) series. You can replace them 1-for-1 without cutting any PVC header pipes.

What is TIPS PVDF and why does it matter?

TIPS stands for Thermally Induced Phase Separation. Compared to cheaper NIPS (Non-solvent Induced Phase Separation) or PVC fibers, TIPS PVDF creates a highly crystalline structure. This means the fiber has immense tensile strength (it won't break during air scouring) and extreme chemical resistance (it can tolerate 5,000 ppm of Chlorine during CIP).

What is your warranty policy?

We provide a strict 12-Month Limited Warranty against manufacturing defects (such as potting resin failure or fiber detachment). The warranty is voided if failure is caused by exceeding the maximum TMP (2.1 bar), exceeding the maximum chlorine exposure limit, or failing to implement proper pre-screening (e.g., missing a 300µm auto-strainer).

How often should we perform CEB (Chemically Enhanced Backwash)?

Standard air-scour backwashing should occur every 30-60 minutes. However, CEB (using NaOCl or Citric Acid) is typically required every 24 to 72 hours depending on the feed water's organic and inorganic load. Our engineers will provide the exact PLC timing matrix based on your raw water report.

How do you guarantee there are no broken fibers before shipping?

Every single WANDONG UF module undergoes a rigorous Pressure Decay Test (Integrity Test) at our ISO 9001 facility before packaging. We pressurize the module with air and monitor the decay rate to ensure 100% of the thousands of hollow fibers are perfectly intact. The hardcopy test certificate is included in every crate.

// MODULE-16 / INITIATE PROTOCOL

YOUR 50,000m²
OEM SUPPLY BACKEND.

Secure your global supply chain with factory-direct economics. Whether you need a few modules for a pilot plant or 200 modules to retrofit a municipal facility, our engineers will provide a precise drop-in replacement proposal within 1 hour.

1h

INITIAL RESPONSE

1-ON-1

CUSTOM PROPOSAL

$0

CONSULTATION FEE

// SECURE YOUR SUPPLY CHAIN

Request Dispatch & Pricing

Work Email *

WhatsApp / Phone

Target Part Number *

Quantity *

Raw Water Report or Old Specs (Optional)

DROP FILE OR CLICK

.PDF / .XLSX / .CSV / MAX 10MB

Notes & Destination Zip Code

Not sure which model fits your rack? Attach a photo of your existing UF skid and our engineers will confirm the Victaulic port dimensions.

AVG. RESPONSE: < 4 HRS · NDA AVAILABLE ON REQUEST

The Ultimate RO Bodyguard.

Dual-Track Procurement.Zero Compromise.