Coarse Bubble Diffusers

They have a reliable alpha value and are designed to economically cover the tank floor. This diffuser is most often applied for mixing in aerobic digesters,channels, equalization tanks and grit chambers.

Wide Band Stainless Steel diffusers are available in 304L or 316L stainless steel. This diffuser is made with cast end caps welded all around. Deflectors are supplied with each diffuser but can be removed. The coarse bubble diffuser is intended to be a clog-free design, with oxygen transfer rates of 0.5 to0.8% per foot of submergence (1.7 to 2.5% SOTE/m).

Design Flow: 10-40 SCFM (17-67 Nm3/hr)
Flow Range: 0-50 SCFM (0-85 Nm3/hr)
Slit Quantity: 44 Holes 24" (600mm)

SSI - Coarse Band

Coarse caps are most commonly used in aerobic digesters and equalization tanks where high rate oxygen transfer efficiency is not required. They are manufactured from black Acrylic plastic containing UV protection and membranes are made from the same EPDM compound that SSI uses in fine bubble disc diffusers. SSI Coarse Cap diffusers have a ? MNPT thread.

Design Flow: 4-6 SCFM (7-10 Nm3/hr)
Flow Range: 0-10 SCFM (0-17 Nm3/hr)
Slit Quantity: 10 x 5mm ? holes 

SSI-NP Square Diffusers are replacements of square ceramic panel diffusers which are prevalent in older waste water plants.