Tubular UF equipment with high fouling resistance, replaceable cores, and 316L shell for harsh wastewater.

1. Product Overview

Tubular Ultrafiltration Equipment is a highly versatile membraneseparation system widely deployed in landfill leachate treatment,

 industrial circulating water softening and dehardening, MBR processes, material clarification, oil-water separation, wastewater 

treatment, and emergency drinking water supply. Tubular Ultrafiltration Equipment features high fouling resistance, 

high operating flux, and replaceable membrane cores and component shells – delivering reliable, long-term performance in even

 the most demanding industrial and municipal applications.

Tubular Ultrafiltration Equipmentutilizes a unique tubular membrane configuration that allows for effective treatment of 

high-solids, high-oil, and challenging feed streams that would quickly foul conventional spiral-wound or hollow-fiber membrane 

systems. The tubular design, combined with high cross-flow velocity, continuously sweeps the membrane surface – minimizing

 fouling and maintaining stable flux over extended operating periods.

Tubular Ultrafiltration Equipment is engineered for durability and cost-effectiveness. The robust 316L stainless steel housing 

provides exceptional corrosion resistance and structural integrity, while the replaceable membrane core design means that 

only the membrane needs replacement at the end of its service life – the housing remains in service, significantly reducing 

long-term operating costs.

2. Technical Parameters – Updated Specifications

Tubular Ultrafiltration Equipment conforms to the following technical specifications:

Parameter Specification

Nominal Diameter of Membrane Assembly 8 inches

Length of Membrane Module 3 meters

Inner Tube Diameter 8 mm (standard; other sizes available)

Effective Membrane Area 27 m² per module

Water Production Interface Size DN65

Membrane Shell Material 316L stainless steel – corrosion-resistant

Membrane Pore Size ≤30 nm (equivalent to 100 kDa molecular weight cut-off)

Pure Water Flux ≥350 L/m²·h (at 25°C, clean water)

Operating Pressure Range -50 to 1000 kPa (vacuum to positive pressure)

Maximum Operating Temperature ≥50°C (continuous; higher with special seals)

pH Tolerance Range 2–11 (at 50°C; for cleaning conditions)

Service Life ≥3 years (with proper operation and maintenance)

Membrane Material PVDF / PES (customizable)

Cross-flow Velocity 3–5 m/s (recommended for fouling control)

3. Available Tube Diameters

Tubular Ultrafiltration Equipment is available in a range of tube diameters to suit diverse application requirements:

Tube Diameter Application Suitability

4 mm Fine filtration, small-scale separation, low-solids streams

6 mm General separation applications, balanced performance

8 mm Standard configuration – optimal balance of flux and fouling resistance

10 mm Higher solids loading, increased fouling potential

12 mm High-fouling applications, high-viscosity streams

24 mm (1 inch) Heavy-duty, high-solids environments – maximum fouling resistance

Tubular Ultrafiltration Equipment with larger tube diameters offers greater tolerance for suspended solids and particulate

 matter – making it the preferred choice for landfill leachate, oil-water separation, and industrial wastewater applications 

where feed streams contain high levels of contaminants.

4. Performance Characteristics – What Sets Our Tubular Ultrafiltration Equipment Apart

Tubular Ultrafiltration Equipment delivers a comprehensive range of performance advantages:

1. High Fouling Resistance: Tubular Ultrafiltration Equipment maintains stable flux even in high-solids or oily feed streams – thanks 

to its tubular geometry and high cross-flow velocity that continuously scours the membrane surface and prevents particle 

accumulation.

2. High Operating Flux: Tubular Ultrafiltration Equipment delivers superior water productivity per unit 

area – achieving ≥350 L/m²·h pure water flux – maximizing system efficiency and minimizing required membrane area.

3. Replaceable Membrane Core: Tubular Ultrafiltration Equipment features a unique replaceable membrane core design – only

 the membrane core needs replacement at end-of-life, while the durable 316L housing remains in service. This significantly

 reduces long-term operating costs and waste generation.

4. Durable 316L Stainless Steel Shell: Tubular Ultrafiltration Equipment uses corrosion-resistant 316L stainless steel 

construction – ensuring exceptional durability and longevity even in harsh industrial environments with aggressive chemicals 

and high temperatures.

5. Wide pH Tolerance: Tubular Ultrafiltration Equipment operates across a broad pH range of 2–11 – allowing aggressive chemical

 cleaning to effectively remove organic and inorganic foulants, restoring membrane performance.

6. Broad Temperature Capability: Tubular Ultrafiltration Equipment handles high-temperature streams ≥50°C – making it suitable

 for hot wastewater treatment and industrial process applications where other membrane systems would fail.

7. Long Service Life: Tubular Ultrafiltration Equipment delivers ≥3 years of reliable service life with proper operation and 

maintenance – ensuring consistent performance and minimal downtime.

5. Typical Applications

Tubular Ultrafiltration Equipment is widely deployed across a broad spectrum of industries and applications:

Industrial Wastewater Treatment

· Landfill leachate treatment (MBR systems)

· Industrial circulating water softening and dehardening

· Chemical wastewater (pharmaceutical, dye, petrochemical)

· Oil-water separation (refinery, machining, offshore)

· High-temperature wastewater treatment

Material Separation & Clarification

· Juice and tea beverage clarification

· Fermentation broth filtration (biopharmaceutical)

· PVA (polyvinyl alcohol) recovery

· Solid catalyst recovery

· Protein concentration and purification

Civil & Municipal Applications

· Emergency drinking water supply units

· Domestic sewage treatment and reuse

· Surface water clarification

6. Why Choose Our Tubular Ultrafiltration Equipment?

Tubular Ultrafiltration Equipment is the preferred choice for demanding separation applications because:

· Versatile – Suitable for a wide range of separation applications across multiple industries – from wastewater to food processing.

· High Contaminant Tolerance – Handles high solids, oils, and challenging feed streams with minimal fouling – reducing cleaning

 frequency and downtime.

· Cost-Effective – Replaceable membrane cores extend equipment life and reduce replacement costs by up to 50% compared to

 single-use membrane modules.

· Robust Construction – 316L stainless steel shell ensures durability in corrosive, high-temperature, and aggressive chemical

 environments.

· Reliable Performance – Stable flux and long service life minimize downtime and maintenance requirements.

· Customizable – Multiple tube diameters available to match specific application requirements and solids loading.

7. Conclusion

Tubular Ultrafiltration Equipment delivers robust, reliable, and cost-effective membrane separation for some of the most

 challenging industrial and municipal applications. With its high fouling resistance, replaceable membrane cores, durable 316L

 construction, and wide range of available tube diameters, Tubular Ultrafiltration Equipment offers a flexible solution for landfill 

leachate, wastewater treatment, material clarification, and emergency water treatment needs.

8. FAQ – Frequently Asked Questions

Q1: What is the working principle of Tubular Ultrafiltration Equipment?

A1: Tubular Ultrafiltration Equipment operates on cross-flow filtration. Feedwater flows at high velocity through the inner lumen 

of tubular membranes. Clean water permeates through the membrane wall while suspended solids, colloids, and 

macromolecules are retained and swept away by the continuous cross-flow – minimizing fouling and maintaining stable flux.

Q2: What is the membrane pore size of Tubular Ultrafiltration Equipment?

A2: Tubular Ultrafiltration Equipment features membrane pore size of ≤30 nm , equivalent to a molecular weight cut-off of 100

 kDa. This pore size effectively removes suspended solids, bacteria, colloids, and macromolecular organics while allowing

 dissolved minerals and small molecules to pass through.

Q3: What materials are used for the membrane and housing?

A3: Tubular Ultrafiltration Equipment uses PVDF (polyvinylidene fluoride) or PES (polyethersulfone) membrane materials – both 

offering excellent chemical resistance and fouling resistance. The housing is manufactured from 316L stainless steel – providing 

exceptional corrosion resistance for harsh industrial environments.

Q4: What is the recommended cross-flow velocity?

A4: For Tubular Ultrafiltration Equipment , the recommended cross-flow velocity is 3–5 m/s. This high velocity creates turbulent

 flow that continuously scours the membrane surface – preventing particle accumulation and maintaining stable flux. Lower 

velocities may result in increased fouling and reduced performance.

Q5: Can Tubular Ultrafiltration Equipment handle high-solids feed streams?

A5: Yes, Tubular Ultrafiltration Equipment is specifically designed for high-solids applications. With tube diameters up to 24 mm

 (1 inch), it can handle feed streams with suspended solids concentrations significantly higher than conventional spiral-wound 

or hollow-fiber systems. This makes it ideal for landfill leachate and industrial wastewater treatment.

Q6: How often does Tubular Ultrafiltration Equipment need cleaning?

A6: Cleaning frequency for Tubular Ultrafiltration Equipment depends on feedwater quality and solids loading. Under typical 

conditions, cleaning is required every 1–3 months. The system supports aggressive chemical cleaning (pH 2–11) to effectively

 remove organic, inorganic, and biological foulants. High cross-flow velocity also reduces cleaning frequency.

Q7: What is the expected service life of Tubular Ultrafiltration Equipment?

A7: Tubular Ultrafiltration Equipment offers a service life of ≥3 years with proper operation and maintenance. The replaceable

 membrane core design allows the membrane to be replaced while the housing remains in service – extending overall equipment

 life significantly.

Q8: Is Tubular Ultrafiltration Equipment suitable for oil-water separation?

A8: Yes, Tubular Ultrafiltration Equipment is highly effective for oil-water separation applications. Its high fouling resistance and 

tubular geometry make it ideal for treating oily wastewater from refineries, machining operations, and offshore platforms – where 

conventional membranes would quickly foul.

Q9: What is the pure water flux of Tubular Ultrafiltration Equipment?

A9: Tubular Ultrafiltration Equipment achieves pure water flux of ≥350 L/m²·h at 25°C. Actual operating flux depends on 

feedwater quality, operating pressure, temperature, and cross-flow velocity. The high flux reduces the number of membrane 

modules required – lowering capital costs.

Q10: Can Tubular Ultrafiltration Equipment be used for emergency drinking water supply?

A10: Yes, Tubular Ultrafiltration Equipment is ideal for emergency drinking water supply applications. Its robust construction,

 high fouling resistance, and effective removal of bacteria and suspended solids make it suitable for treating surface water, 

river water, and other raw water sources in emergency situations.

Q11: What is the operating pressure range for Tubular Ultrafiltration Equipment?

A11: Tubular Ultrafiltration Equipment operates across a wide pressure range of -50 to 1000 kPa – accommodating both 

vacuum-driven and pressure-driven configurations. This flexibility allows the system to be adapted to various site conditions 

and hydraulic requirements.

Q12: What is the maximum operating temperature for Tubular Ultrafiltration Equipment?

A12: Tubular Ultrafiltration Equipment operates continuously at temperatures ≥50°C. For applications requiring higher 

temperatures (up to 80°C), we offer specialized seal materials and membrane grades – please consult our technical team for 

such requirements.

Q13: How does the replaceable membrane core design benefit users?

A13: The replaceable membrane core design of Tubular Ultrafiltration Equipment allows only the membrane core to be replaced 

when it reaches end-of-life – while the 316L stainless steel housing remains in service. This reduces replacement costs by 40–50% 

and significantly reduces waste generation compared to single-use membrane modules.

Q14: What is the warranty coverage for Tubular Ultrafiltration Equipment?

A14: We provide a 12-month warranty on Tubular Ultrafiltration Equipment components against manufacturing defects.

 The warranty covers the housing, membrane cores, and internal components. The warranty does not cover fouling, 

chemical damage, or operation outside specified parameters.

Q15: Can Tubular Ultrafiltration Equipment be customized for specific applications?

A15: Yes, Tubular Ultrafiltration Equipment is highly customizable. We offer: (a) Multiple tube diameters (4–24 mm); (b) Various 

membrane materials (PVDF, PES, etc.); (c) Custom module lengths; (d) Special seal materials for high temperatures; (e) Integrated

 cleaning systems. Contact our technical team with your application requirements.

Q16: How does Tubular Ultrafiltration Equipment compare to spiral-wound UF?

A16: Tubular Ultrafiltration Equipment offers superior fouling resistance and solids tolerance compared to spiral-wound

 UF – making it ideal for high-solids and oily applications. While spiral-wound UF is more cost-effective for clean water

 applications, Tubular Ultrafiltration Equipment is the preferred choice for challenging industrial wastewaters, leachate, 

and oil-water separation where reliability and fouling resistance are paramount.

This updated product introduction positions the Tubular Ultrafiltration Equipment as a robust, versatile, and cost-effective

 solution for demanding industrial and municipal separation applications, with comprehensive technical details and practical

 support information. Let me know if you need any further adjustments.