DISC DIFFUSER

AIRFLEX range of products includes a wide range of aeration products as fine bubble and Coarse bubble membrane diffuser-Tube type and Disc type diffuser. The AIRFLEX Membrane Diffuser is manufactured from high Grade EPDM sleeves, environmentally resistant and durable molded PVC base

PROCESS:

In the waste water treatment process, Aeration, to be effective, must transfer oxygen to the liquid for use by microorganism, to produce a floc and mixing the liquor. Diffused aeration is effective method for aeration by means of porous diffusers installed at the bottom of the tank, in the aeration process, oxygen transfer takes place by molecular diffusion through the interface film between air and liquid and it increases in proportion to the interface area. For a given air flow, as the number of bubbles increases, the surface area increases and the rise velocity of bubbles decreases, the diffused aeration transfer more surface area to the liquid than mechanical aeration, e.g. diffuser emerging up to 2 mm bubbles presents six times more surface area to the liquid than surface aerator emitting 10 to 12 mm bubbles, also rise velocity of bubbles is lower. Surface area and rise velocity of bubbles contribute to the higher oxygen transfer capacity of diffused aeration system.

AIRFLEX TUBULAR DIFFUSER PRODUCT SPECIFICATION SHEET

Model SIZE mm D x L Connection uPVC support pipe OD in mm Perforation length in mm Min. Active surface area of diffuser Air discharge per diffuser at medium duty in M 3/hr @ Nos. of “.” Slit perforation Slit length Oxygen transfer per diffuser(SOTR) SAE in O Kg/kw/hr
“AIRFLEX-1” 63×625 3/4? BSP Female thread 63 600 0.1 m2 7-9 12244 Up to 3
“AIRFLEX-2” 63×1000 3/4? BSP Female thread 63 1000 0.18 m2 8.5-11.8 17660 Up to 4
“AIRFLEX-3” 90×1000 1? BSP Female thread 90 1000 0.251 m2 11-14.5 19450 Up to 4.32

AIRFLEX FINE BUBBLE EPDM MEMBRANE DISC DIFFUSER DISC-245 / DISC-330

MODELDISC-245DISC-330
Material of MembraneEPDMEPDM
Disc BasePPPP
Dia. Of Disc (mm)245 (9?)330 (12?)
Air Flow (M3/H)1.0-7.21.0-12.0
Bubble Size (mm)1-31-3
Floor Coverage (%)2-252-25
Weight (kg)0.600.85
Operating temp.(°C)8585
End connection3/4? BSP Male thread3/4? BSP Male thread
Perforated Area (M2)0.0320.061

COARSE BUBBLE DIFFUSER:

SPECIFICATION:

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