Coarse Bubble Air Diffuser by DUBHE

Product details of the coarse bubble air diffuser

Product Description

DUBHE coarse bubble air diffuser is manufactured by our team of skilled experts as per the international quality standards. A series of quality tests is conducted on the entire range to seek out any possible defect. DUBHE has been cooperating with lots of professional manufacturers in China.

Product scenario

B-1 (5)

Material

EPDM

PTFE

EPDM diaphragm performance parameters

Item	Criteria	Unit	Values
Hardness	ASTM D2240-95	Shore A	60
Tensile strength	ASTM D412-92	N/mm²	>2000
Tear strength	ASTMD624-91,Die T	N/m	>110
Permanent deformation at 100% elongation	ASTM D412-92	%	<5%
Maximum elongation at tear	ASTM D412-92	%	600
Ozone Resistance (70hours, 40°C, 50mPa partial ozone pressure, no decomposition)	ASTM D1171-94	-	eligible (voter etc)
UV resistance	-	-	Qualified
Hot air ageing resistance (70hours, 70°C)	ASTM D573-88	-	Tear strength change rate <3%
		-	Change in tearing elongation <25%
		-	Hardness change <5 degrees
Rate of change of deformation in compression (22hours, 70°C)	ASTM D573-88	%	<20
Liquid Resistance, Volume Change (water, 70hours, 100°C)	ASTM D471-94	%	<3
Low Temperature Resistance (-40º C, non-crisp)	ASTM D832-92	-	Qualified

Attached: Membrane material composition table
Polymer	58%
Carbon Black	17.5%
Plasticisers	19%
Others	5.5%

PTFE test report

SSI PTFE and PEEK coated diffusion films do not contain PFAS or PFOA. 

When SSI worked with suppliers to develop coatings in the 2000s, SSI insisted on coating packages that did not contain heavy metals or by-products that could theoretically be used in potable water service, even if our products were used in wastewater.

Drawings & Dimensions

B-3 (6)

Applications

COMPANY STRENGTH

In a wastewater treatment plant, the Coarse Bubble Diffuser is installed in the aeration tank, where it releases a constant stream of small air bubbles. These bubbles rise to the surface, creating turbulence and increasing the contact between air and water. This allows for the transfer of oxygen from the air into the water, promoting the growth of beneficial bacteria that break down organic matter.

COMPANY STRENGTH

In an aquaculture facility, the Coarse Bubble Diffuser is used to provide oxygen to fish and other aquatic animals. The small bubbles created by the diffuser help to increase the dissolved oxygen levels in the water, creating a healthier environment for the aquatic life to thrive in.

D-1

In industrial processes, the Coarse Bubble Diffuser is used to aerate and mix liquids, such as in fermentation tanks or chemical reactors. It helps to improve the efficiency of the process by providing a constant supply of oxygen and promoting mixing and circulation.

COMPANY STRENGTH

Overall, the Coarse Bubble Diffuser is a versatile and essential product that plays a crucial role in various applications. Its high-quality design and efficient performance make it a popular choice for aeration systems around the world.

Company Advantage

• Dubhe insists on the service concept to give priority to customer and service. We are dedicated to providing high-quality products and excellent services.
• Our company employs a number of industry experts and forms a professional R&D technical team. All that provides power for our continuous development.
• Dubhe's products are not only popular in China, but also sold well overseas.
We are committed to providing customers with quality products. We sincerely welcome customers with needs to contact us, and look forward to establishing a long-term friendly relation with you!