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Airfin ® Fine bubble EPDM membrane disc diffuser Disc-245 / Disc-330

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SPECIFICATIONS

MODEL DISC-245 DISC-330
MATERIAL OF MEMBRANE EPDM EPDM
DISC BASE ABS ABS
DIA. OF DISC(MM) 245 (10”) 330 (12”)
AIR FLOW(NM3/H) 1.0-7.2 1.0-12.0
BUBBLE SIZE(MM) 1-3 1-3
FLOOR COVERAGE(%) 2-25 2-25
WEIGHT(kg) 0.60 0.85
OPERATING TEMP (C0) 85 85
END CONNECTION (M)NPT / BSP 20 (3/4") 20 (3/4”)
PERFORATED AREA (M2)(ACTIVE SURFACE AREA ) 0.032 0.061
PERFORATION SIZE , SLIT mm / Qty 1 / 6600 1.5 / 10200

MATERIAL OF DIFFUSER

High quality EPDM membrane The membrane must close quickly when stop air supply,
The self-cleaning design prevents clogging and highly resistant to fouling,
The physical characteristic is as follows:
Membrane Color Black
Wall Thickness 2 mm
Tensile strength ‘’ASTM D412-92’’ 2000 PSI
Tear strength ‘’ ASTM D 624-91’’ 110 Lb/linear inch
Ozone resistance ‘’ 70 Hrs AT 40 ° C’’ASTM D 1171-94’’ Pass
UV resistance Pass
Durometer ‘’Shore – A’’ 60
Ultimate Elongation 700%
The disc base and retaining ring shall be molded high quality ABS ( POLYLAC) .
The physical characteristic is as follows :
Specific Gravity 1.06
IZOD Impact Strength 2.6 ft-lb/in
Tensile Strength 7090 PSI
Tensile Elongation 15%
Maximum Temperature 85℃
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RANBAXY LABORATRIES LTD.
This is to certify that Airfin ® Qty:164nos diffuser aeration system was installed at our plant by M/s Jay engineering on year 2001 on DEWAS plant for effluent flow 1000cu.m/day BOD-900mg/l COD..3000mg/l.
MR.SATISH PATHAK | (Officer-EHS) MORE