What is the maximum operating pressure?

The maximum operation pressure is 4.1 MPa (600 GPM) for both DNF1 and DNF2 models.

Is OEM/ODM service available?

Yes, both OEM and ODM services are available for our membrane products.

What certifications do the products have?

The products are certified with RoHS.

Durable 4040 8040 NF Membrane for Effective High Salt Removal

Name: Durable 4040 8040 NF Membrane for Effective High Salt Removal
Brand: Ningbo Shuiyi Membrane Technology Development Co., Ltd.
SKU: 1965452965

Zhejiang, ChinaNingbo Shuiyi Membrane Technology Development Co., Ltd.

US$300.00-400.00

50 Sets

Sample price:US$100.00/square meter.Request sample

Product profile

Customization

Available

Membrane Type

Hollow

Type

Model NO.

DNF1/DNF2 4040 8040

Membrane Area

37sqm

Structure

Spiral-Wound

Material

Aromatic Polyamide

Thickness of The Inlet Grid

34mil

Transport Package

Standard Export Cartons/ Pallets

Specification

1016mm*201mm*29mm

Trademark

SHUIYI or Customized

Origin

Made in China

Production Capacity

10000000m2/ Year

Key features

Low Energy Consumption: Embedded ultra-low pressure technology reduces energy consumption while extending service life.

Anti-Fouling Design: Advanced anti-fouling layer and excellent chemical cleaning resistance guarantee long service life.

Versatile Applications: Suitable for municipal sewage, industrial wastewater, salt mine recycling, and pharmaceutical purification.

Customization Available: Supports customization from samples, designs, and flexible minor modifications for specific needs.

Stable Water Quality: Reliable and stable permeate water quality with accurate molecular weight interception capabilities.

Wide pH Tolerance: Operates effectively within a feed pH range of 3-10 and cleaning pH range of 2-11.

Proven Manufacturer: Established in 2011 with 312 employees, 9 production lines, and 8 years of export experience.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceIn-stock CapacityQuality Assurance

Ningbo Shuiyi Membrane Technology Development Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤2.83h

AI-Powered supplier vetting

SummaryThe supplier demonstrates established membrane-product R&D and customization capabilities, including ODM services, sample/design-based customization, and a professional R&D center. It holds RoHS and multiple management-system certifications, including ISO9001:2015, ISO45001:2018, and ISO14001. Production evidence covers UF membrane, nanofiltration membrane, and membrane filament lines, with standardized finished-product inspection procedures. Service evidence shows participation in Vietwater 2024, stated lead times within 15 workdays in both peak and off-season periods, and access to Ningbo and Shanghai ports. However, the supplier reports no overseas warehouse, showroom, agent, or branch, no SDK availability, no Fortune 500 cooperation, and no established AI-based sustainable-development management capability. Financial information is represented only by years, without sufficient evidence to assess financial credibility.

Supplier typeThe supplier is a membrane-material and membrane-product manufacturer with its own R&D center, production lines for UF membranes, nanofiltration membranes, and membrane filaments, and capability to provide ODM and OEM services. This indicates a manufacturer with design and development functions rather than only a trading role.

CertificationsThe supplier reports RoHS product compliance certification and ISO9001:2015, ISO45001:2018, ISO14001, and other management-system certifications. These explicitly documented certifications support compliance and management-system capability.

R&D capabilityThe supplier has a professional R&D center covering material and water-quality testing, equipment development, pilot testing, and technical exchanges; it reports new products during the past year, ODM services, cooperation with well-known R&D institutions, and seven R&D engineers. The lack of an available SDK is a limitation for software-related integration, but the evidence supports product and materials innovation capability.

Production capacityThe supplier reports UF membrane, nanofiltration membrane, and membrane filament production lines, as well as documented and consistently followed finished-product inspection instructions. These records explicitly support manufacturing scope and standardized quality inspection capability.

Customization capabilityThe supplier explicitly provides customization from samples, customization from designs, full customization, minor customization, and flexible customization, with the same design-service capabilities reported across the provided records. This is direct evidence of broad customization coverage.

Product Q&A

Q:What is the difference between DNF1 and DNF2 membranes?

DNF1 has high TOC removal and medium inorganic salt rejection, suitable for general desalination. DNF2 has high multivalent ion rejection and low monovalent ion rejection, ideal for small molecule pharmaceutical purification.

Q:What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 piece (1 Pc).

Q:Can the membrane be customized?

Yes, we offer customization options including customization from samples, designs, full customization, minor customization, and flexible customization.

Q:What are the lead times for production?

The average lead time is within 15 workdays for both peak season and off-season.

Q:What payment terms are accepted?

We accept LC (Letter of Credit) and T/T (Telegraphic Transfer) as terms of payment.