Fine Bubble B

Diffused Areation system > Fine Bubble

 

Fine Bubble

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℃