SSI disc diffusers and membrane are manufactured with flexibility in mind. You can either connect diffusers to pipe using an economical universal Grommet connector, or with a proprietary Airflex ® Quick Connect saddle. Both Methods can resist a 200 pound pullout load while operating under 15 PSIG air pressure without leakage.
The saddle is designed to mount onto 4” Sch 40 PVC pipe or Sch 10 stainless pipe with a 114.3mm Outside Diameter. Special adapters are available for mounting on 110 and 108mm OD pipe, and a new model is under design for 3"/90mm diameter pipe.The saddle accepts both SSI 9" and 12" discs on the same mount.
A split second connection to pipe with a quarter
turn is all that is required, reducing labor cost
to install disc aeration systems. An integral
seal is provided in the saddle to ensure a leak-free
connection. Another advantage of this connection
is that it allows removal of the membrane without
removing the diffuser from the pipe.
This
method can be used with confidence with large
disc diffusers in oxidation ditches where 
there
is channel velocity.
Airflex Grommets
Airflex ® Grommets are inserted into a 1-3/16”(30mm) straight hole drilled into PVC or Stainless pipe from 2.5” to 6” diameter (60mm to 150mm), Sch 40 or thinner wall, and can be, but are not required to be solvent welded to PVC pipe. Please specify if you require the Sch 40 Grommet (also for PN16) or the SDR26 Grommet (also for PN10).
