350-Disc-Diffuser Replacement Direct Retrofit for Existing Grid or Drop Pipe Aeration Systems

Name: 350-Disc-Diffuser Replacement Direct Retrofit for Existing Grid or Drop Pipe Aeration Systems
Brand: Hangzhou Juntai Plastic Products Co., Ltd.
SKU: 2313805385

Zhejiang, ChinaHangzhou Juntai Plastic Products Co., Ltd.

US$6.85

1,000-4,999 PCS

US$6.20

5,000+ PCS

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

Model NO.

DD340

Type

Aerators

Method

Biological Treatment

Usage

Industrial, Home, Agriculture, Hospital, Water

Membrane

EPDM/Silicone

Color

White

Material

ABS/PP

UV

Add

Transport Package

Cartons

Specification

DD215/270/340

Trademark

Juntai

Origin

China

HS Code

8421999090

Key features

Fine Bubble Distribution: Ensures even bubble distribution with bubble size ranging from 1.0 to 2.0 mm.

Durable Corrosion-Resistant Material: Constructed with EPDM/Silicone membrane and ABS/PP body for long-term durability.

Customizable Membrane Material: Membrane options include EPDM, Silicone, or Rubber to suit specific needs.

Wide Application Range: Suitable for municipal, industrial, agricultural, hospital, and home wastewater treatment.

OEM and ODM Services: Offers customization from samples and designs with full OEM/ODM support.

Fast Lead Time: Peak and off-peak season lead times are both within 15 working days.

ISO9001 Certified Quality: Manufactured under ISO9001 system with rigorous random inspection protocols.

Company profile

Years of Export ExperienceHigh Repeat Buyers ChoiceR&D CapabilitiesProduct Certification

Hangzhou Juntai Plastic Products Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 12 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤0.18h

AI-Powered supplier vetting

SummaryThe supplier is identified as a Hangzhou-based trading company, with stated business activities including chemical products and related wholesale sales. It reports OEM services for well-known brands, ODM services, customization from samples and designs, four R&D engineers, and four experienced export-trade staff. Manufacturing information includes 50 production lines and extrusion and injection-molding equipment, but there are no quality-control testing instruments reported and finished-product inspection is by random inspection. The supplier has documented procedures for service assessment, corrective and preventive actions, and complaint handling. It has attended the Indowater offline trade show but reports no overseas warehouse, showroom, agent, or branch. Financial records are identified for 2022–2024, although the provided information does not establish financial strength. No certification holding is stated.

Supplier typeThe supplier is explicitly classified as a trading company in Hangzhou, while its business scope includes chemical-product sales and multiple wholesale activities. The available information therefore supports a trade-oriented supplier profile rather than clearly establishing an integrated manufacturer.

After-Sales capabilityThe supplier has written procedures and records for service assessment, corrective and preventive actions, and customer complaints. However, it reports no overseas warehouse, showroom, agent, or branch; its service-support reach is therefore documented procedurally but not supported by an overseas service network.

R&D capabilityThe supplier reports new products during the past year, four R&D engineers, CAD capability, and design input, output, review, verification, and validation documents available for audit. It does not have an available SDK, but the documented product-development resources support a positive assessment of general innovation capability.

Production capacityThe supplier reports 50 production lines and equipment including single-screw extruders, injection-molding machines, and twin-screw extruders. Nevertheless, it reports zero quality-control test equipment, uses random finished-product inspection, and does not continuously reconcile production quantities for every batch or mass production, leaving important production-control limitations.

Customization capabilityCustomization from samples and designs is stated in multiple slices, supported by four R&D engineers whose responsibilities include design customization and by CAD capability. The supplier also reports ODM services, providing explicit evidence of customization capacity.

Client casesThe supplier states that it provides OEM services for well-known brands and has participated in the Indowater offline trade show. These are evidence of brand-related OEM experience and trade-show participation, but no specific customer names, projects, or case details are provided.

Product Q&A

Q:What is a disc diffuser?

Fine bubble disc diffuser is a core aeration component for wastewater treatment, composed of ABS/PP support base, elastic rubber membrane, sealing ring and one-way check valve. Under air pressure, membrane slits open to release micro bubbles; when air supply stops, slits automatically close to prevent backwater clogging, widely used in municipal sewage, industrial wastewater, aquaculture oxygenation.

Q:What sizes do you supply for disc diffusers?

Standard mainstream sizes: DD215mm, DD260mm,DD350mm. Custom diameter, thread interface (3/4" NPT standard) and structural customization are supported.

Q:Recommended installation depth & spacing?

Install 0.3 to 0.5m above tank bottom, standard installation spacing 500 to 800mm. High COD organic wastewater reduces spacing to 300 to 500mm for uniform oxygen supply. All diffusers must be on the same horizontal level.

Q:Can it be installed for intermittent aeration?

Yes, built-in one-way non-return valve prevents sewage backflow into air pipeline during intermittent stop-air, anti-clogging performance superior to ceramic diffusers.