High-Efficiency EPDM Disc Diffusers in Water Treatment (9inch)

• After-sales Service: Half Year
• Warranty: Half Year
• Type: Aerators
• Model NO.: DUDH-9
• Method: Physical Treatment
• Usage: Industrial, Agriculture, Hospital
• Transport Package: CTN
• Specification: 9inch (270mm)
• Trademark: DUBHE
• Origin: China
• HS Code: 8421299090
• Package Size: 74.00cm * 45.00cm * 30.00cm
• Package Gross Weight: 17.000kg

Product Description

Product Description

We manufacture our disc diffusers with compression molded membranes.Standard materials are EPDM and fluoroelastomer layered EPDM.

We uses a specially shaped tool to punch holes in the diaphragm from the inside out. This mini mises the size of the holes in the diaphragm surface. Through specialised synthesis and surface treatment techniques, we are able to machine smooth holes in hydrophilic surfaces, checking the uniformity of the perforation depth of each diaphragm to ensure uniform air release, and quickly release small air bubbles as small as 1-2mm in diameter.

Key Features

Superior Oxygen Transfer Efficiency

Exceptional Chemical and Environmental Resistance

Wide Temperature Adaptability

Low Maintenance with Modular Design

Cost-Effectiveness and Sustainability

Technical Parameters

Specification
MODEL	DUDH-7	DUDH-9	DUDH-12
Size(inch)	7”(215mm)	9”(270mm)	12”(330mm)
Design Flow (m'/hr)	1.5-3	2-5	2-8
Run Flow(m3/hr)	1.0-2	2-3	3-4.5
Service Area (m2/pcs)	0.3-0.65	0.3-0.8	0.3-1
Membrane Thickness(mm)	2	2	2
Bubble Size(mm)	1-2	1-2	1-2
Hole Quantity	3500	5000	8000
SOTE (%)	22-40	31-59	35-59
SOTR(kg 02/m3/hr)	0.13-0.4	0.21-0.4	0.21-0.4
Service Life(year)	≥5	≥5	≥5

Drawings & Dimensions

Company Profile

Shanghai DUBHE Environmental Protection Technology Co., Ltd.

As a leading manufacturer and solution provider in the wastewater treatment industry, DUBHE specializes in the R&D, production, and global supply of high-performance environmental equipment. Our product portfolio covers:
Aeration Systems: Including premium U.S. SSL aeration devices for efficient oxygenation.
Blowers & Compressors: Energy-efficient solutions for wastewater aeration.
Sludge Dewatering Equipment: Centrifuges, belt presses, and screw presses for reduced sludge volume.
Solid-Liquid Separation: DAF (Dissolved Air Flotation) units, screens, and filters.
Biofiltration Technologies: Advanced biological media and biofilm carriers.

Why Choose DUBHE?

High-Tech Innovation: Our Wuxi Yixing production base integrates cutting-edge manufacturing with strict quality control. End-to-End Solutions: From design to after-sales support, we serve municipal and industrial sectors worldwide.Customer-Centric Approach: Continuous improvement driven by market needs and sustainable design principles.
Committed to Excellence – For Cleaner Water, For a Greener Future.

FAQ

Q: What's the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.
 
Q: Do you provide after-sales service overseas?
A: Yes, we have the best service.
 
Q: Can I request a customized  size?
A: Absolutely! We offer tailored attachments.
 
Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
 
Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.