Is OEM/ODM service available?

Yes, we provide OEM/ODM services with an independent R&D team to support custom design and manufacturing requirements.

What certifications does the product have?

The product is certified with CE, GS, and RoHS, and the materials comply with ISO and FDA standards for food-grade safety.

What are the main application industries?

It is widely used in chemical, petrochemical, seawater desalination, power, water treatment, pharmaceutical, and food industries.

Coupling Type Stainless Steel Membrane Shell for RO Water Treatment Plant Project

Name: Coupling Type Stainless Steel Membrane Shell for RO Water Treatment Plant Project
Brand: Hangzhou Keyuan Water Treatment Equipment Co.,Ltd
SKU: 2279450835

Zhejiang, ChinaHangzhou Keyuan Water Treatment Equipment Co.,Ltd

US$296.00

10-99 Sets

US$286.00

100-499 Sets

US$269.00

500-999 Sets

US$249.00

1,000+ Sets

Product profile

Customization

Available

Type

Reverse Osmosis

Usage

Environmental Protection

Model NO.

Coupling type

Motive Force

Pressure

Style

Tube

Performance

Efficient Filtration

Certification

CE, GS, RoHS

Main Material

Housing/End Cap/Coupling: 304/316L Stainless Steel

End Caps

Coupling Type Flexible Diaphragm Coupling Connect

Series & Size

4-Inch (4021/4040), 8-Inch (8040)

Maximum Operating Pressure

1.0-4.0MPa (150-580psi) (Customizable)

Operating Temperature

-20℃~250℃ (-4℉~482℉)

Membrane Capacity

4-Inch: 1-3 Elements; 8-Inch: 1-6 Elements

Feeding Mode

Side Port Entry, End Port Entry (Customizable)

Installation Type

Wall-Mounted, Ground-Mounted

Housing Structure

Seamless/Seamed

O-Ring Material

Silicone,NBR,EPDM,FKM

Surface Treatment

Mechanical Polishing/Brushed

Service Life

≥ 10 Years (Under Normal Use)

Pressure Test Report

Provided

Transport Package

Carton

Specification

4040-4080

Trademark

Keyuan

Origin

Hangzhou, China

HS Code

8421999090

Production Capacity

500000pieces/Month

Key features

Premium Stainless Steel: Made of 304/316L stainless steel, offering excellent corrosion resistance and durability.

High Pressure Resistance: Max operating pressure 1.0-4.0MPa, adaptable to harsh high-pressure conditions.

Reliable Sealing: Double FDA-grade O-rings ensure airtight sealing with leakage rate less than 0.5%.

Easy Installation: Coupling design allows tool-free disassembly, reducing maintenance downtime by 50%.

Full Customization: Customizable size, membrane capacity, pressure grade, and feeding mode for specific needs.

Wide Compatibility: Compatible with standard spiral-wound RO, NF, UF membrane elements (4021/4040/8040).

Long Service Life: Designed for a service life of 10+ years under normal use conditions.

Low Noise Operation: Flexible diaphragm coupling provides shock absorption, ensuring quiet and lubrication-free operation.

Company profile

Importers and ExportersFast Delivery100% Finished Products InspectionStandardized quality control

Hangzhou Keyuan Water Treatment Equipment Co.,Ltd

Zhejiang, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service AvailableNearest Port: Shanghai, NingboAverage Response Time: ≤0.41hTerms of Payment: T/T, Western Union, Small-amount paymentInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP, DAP

AI-Powered supplier vetting

SummaryHangzhou Keyuan Water Treatment Equipment Co., Ltd. is described as a comprehensive water-treatment-equipment enterprise covering research and development, production, sales, and after-sales service. It produces multiple filtration, tank, softening, membrane-shell, and other stainless-steel products. The supplier reports professional technical R&D capability, 3D software design services, and broad customization options. Quality assurance and raw-material traceability are stated, but corrective-action and complaint-handling procedures have no written records. The supplier has no stated inventory, overseas warehouse, overseas agent or branch, showroom, or offline trade-show participation. Financial information is insufficient for a meaningful credibility assessment, and no customer cases or certifications are provided.

Supplier typeThe supplier is explicitly described as a professional technical supplier and as a comprehensive enterprise engaged in R&D, production, sales, and after-sales service for water-treatment equipment. Its stated business scopes also include environmental-protection equipment, membrane materials, and equipment for food, beverage, pharmaceutical, oil-refining, and chemical applications.

R&D capabilityThe supplier explicitly reports professional technical R&D capability and the ability to provide 3D software design services. Its stated R&D and production scope includes water-treatment equipment, new membrane materials, and environmental-protection equipment, supporting a positive assessment of technical innovation capability.

Production capacityThe supplier states that it researches and manufactures mechanical, precision, bag, membrane, tank, softening, and other water-treatment products, with additional equipment-manufacturing scopes across several industries. However, it reports no inventory capability and no valid manufacturing-capacity contract with an associated subcontractor; these limitations do not negate its stated manufacturing operations but constrain the evidence for flexible fulfillment capacity.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides 3D software design services, directly supporting a broad customization capability.

Product Q&A

Q:What materials are used for the membrane housing?

The housing, end cap, and coupling are made of premium 304 or 316L stainless steel, ensuring food-grade safety and superior corrosion resistance.

Q:What is the maximum operating pressure?

The maximum operating pressure ranges from 1.0 to 4.0 MPa (150-580 PSI), with a design pressure of 1.5 times the operating pressure.

Q:Can the product be customized?

Yes, we offer full customization including size, membrane capacity, pressure grade, coupling size, surface treatment, and feeding mode (side or end port entry).

Q:What is the warranty period?

We provide a 12-month warranty for all products, along with lifetime technical support for after-sales service.

Q:What is the lead time for delivery?

Standard models take 7-15 days. During peak season, lead time is about one month, while off-season lead time is within 15 workdays.