Big Discount 12inch Fine Bubble Diffuser - EPDM Coarse Bubble Diffuser – Holly

Product Description

EPDM coarse bubble air disc diffuser produce 4-5mm bubbles which rise rapidly from the floor of a wastewater treatment plant or sewage treatment plant tank. They are typically used in grit chambers, equalization basins, chlorine contact tanks, and aerobic digesters, and sometimes also in aeration tanks. Generally they are better at vertically “pumping” water than at mass transfer of oxygen. Coarse bubble diffusers typically provide half the mass transfer of oxygen as compared to fine bubble diffusers, given the same air volume.

Typical Applications

1. Aeration of grit chambers

2. Aeration of equalization basins

3. Aeration of chlorine contact tanks

4. Aeration of aerobic digesters

Typical Parameters

Model	HLBQ-170	HLBQ-215	HLBQ-270	HLBQ-350	HLBQ-650
Bubble Type	Coarse Bubble	Fine Bubble	Fine Bubble	Fine Bubble	Fine Bubble
Image
Size	6 inch	8 inch	9 inch	12 inch	675*215mm
MOC	EPDM/Silicone/PTFE – ABS/Strengthened PP-GF
Connector	3/4”NPT male thread
Membrane Thickness	2mm	2mm	2mm	2mm	2mm
Bubble Size	4-5mm	1-2mm	1-2mm	1-2mm	1-2mm
Design Flow	1-5m3/h	1.5-2.5m3/h	3-4m3/h	5-6m3/h	6-14m3/h
Flow Range	6-9m3/h	1-6m3/h	1-8m3/h	1-12m3/h	1-16m3/h
SOTE	≥10%	≥38%	≥38%	≥38%	≥40%
	（6m submerged）	（6m submerged）	（6m submerged）	（6m submerged）	（6m submerged）
SOTR	≥0.21kg O2/h	≥0.31kg O2/h	≥0.45kg O2/h	≥0.75kg O2/h	≥0.99kg O2/h
SAE	≥7.5kg O2/kw.h	≥8.9kg O2/kw.h	≥8.9kg O2/kw.h	≥8.9kg O2/kw.h	≥9.2kg O2/kw.h
Headloss	2000-3000Pa	1500-4300Pa	1500-4300Pa	1500-4300Pa	2000-3500Pa
Service Area	0.5-0.8m2/pcs	0.2-0.64m2/pcs	0.25-1.0m2/pcs	0.4-1.5m2/pcs	0.5-0.25m2/pcs
Service Life	＞5 years

Packing & Delivery