What is your terms of delivery?

Normally within 7~10 days against down payment

What is the warranty period for the diffuser?

We provide a 1-year warranty for our products.

What is the service life of the membrane?

The diaphragm has a long service life, which can be used for 5-8 years.

What is the after-sales service support?

We offer online support for technical assistance and troubleshooting.

High Oxygen Transfer Efficiency Compression Molded Membranes Membrane Disc Air Diffusers Bubble Diffuser

Name: High Oxygen Transfer Efficiency Compression Molded Membranes Membrane Disc Air Diffusers Bubble Diffuser
Brand: Hebei Qinghui Plastic Products Co., LTD
SKU: 1922405281

Hebei, ChinaHebei Qinghui Plastic Products Co., LTD

US$2.00-15.00

10 Pieces

Sample price:US$45.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Online Support

Warranty

1 Years

Model NO.

8 inch 9 inch 12 inch 215mm 260mm 300mm 330mm

Type

Aerators

Method

Physical Treatment

Usage

Industrial, Home, Agriculture, Hospital, Sewage Treatment Equipment

Material

EPDM+Rubber

Certification

ISO9001, SGS, CE

Membrane Material

EPDM/Silicone/PTFE

Productivity

20000PCS/Month

Service Life

More Than 5 Years

Shape

Flat or Arch Type

Bubble Type

Coarse Bubble, Fine Bubble

Connector

3/4" NPT Male Thread

Color

Black, White, Blue

Place of Origin

China

Sample

Available

Oxygenate Capability

0.13~0.5 KGO2/H

Production Type

Tube Diffuser, Disc Diffuser

Working Air Flow

1.5~8 M3/H

Water Submerged Depth

4-8m

Transport Package

Carton and Pallet

Specification

8 inch 9 inch 12 inch 215mm 260mm 300mm 330mm

Trademark

QINGHUI

Origin

China

HS Code

4016999090

Production Capacity

20000PCS/Month

Key features

High Oxygen Transfer Efficiency: Oxygen utilization ratio exceeds 30% with dynamic efficiency of 6.5 kgO2/kw.h.

Long Service Life: Durable EPDM/Silicone/PTFE membrane designed for 5-8 years of continuous operation.

Anti-Blocking Design: Equipped with check valve to prevent sewage backflow and ensure uniform gas distribution.

Versatile Applications: Suitable for municipal sewage, industrial wastewater, aquaculture, and hospital treatment.

Premium Raw Materials: Membrane materials are 100% imported from Germany for superior quality and durability.

Certified Quality: Products passed national testing and hold ISO9001, SGS, and CE certifications.

Energy Saving: Low resistance loss under 3000 Pa with high tear resistance and anti-aging properties.

Customizable Options: Available in Flat or Arch types with multiple sizes and connector options.

Company profile

High Repeat Buyers ChoiceFast DeliveryQuality AssuranceProduct Certification

Hebei Qinghui Plastic Products Co., LTD

Hebei, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤0.01h

AI-Powered supplier vetting

SummaryThe supplier operates in manufacturing and processing of plastic products, with related glass, rubber, daily-necessity, mechanical-equipment, hardware, and electronic-product activities. It reports six production lines, 6–10 quality-control staff, and annual output stated at US$50 million–US$100 million. However, R&D resources and innovation services are limited: one year of R&D engineer experience, no patents, no new products in the past year, no ODM, OEM for popular brands, SDK, private-mold, professional-technical-supplier, or 3D design capability. Customization is available from samples. Service infrastructure is weak, with no written service, complaint-handling, or corrective-action procedures and no overseas warehouse, showroom, agent, branch, or offline trade-show participation. Financial information is recorded mainly as zero values, so financial credibility cannot be positively established. No customer cases or certification details are provided.

Supplier typeThe supplier is explicitly engaged in manufacturing plastic parts and other plastic products, with additional processing and sales activities covering glass, rubber, daily necessities, mechanical equipment, hardware, and electronics. This supports classification as a diversified plastic-product manufacturer and processor.

After-Sales capabilityThe supplier has no written procedures or records for service assessment, corrective and preventive actions, or effective complaint handling. It also reports no overseas warehouse, showroom, agent, branch, or offline trade-show participation, although it provides stated quotation and payment options and reports service lead times within 15 workdays.

R&D capabilityInnovation capability is explicitly limited: the supplier reports zero R&D patents, no new products in the past year, no ODM, no OEM for popular brands, no SDK, no private-mold or professional-technical-supplier capability, and no 3D software design service. R&D engineer experience is stated as one year.

Production capacityThe supplier reports six production lines, 6–10 quality-control staff, and annual production output stated at US$50 million–US$100 million. Its registered business scope directly covers manufacturing and processing plastic products, providing explicit evidence of production operations and scale.

Customization capabilityThe supplier states that its R&D design service is customization from samples. However, it does not provide private molds or 3D software design services, so customization is evidenced only for sample-based work and not for broader engineering or mold-development capability.