Bin-Flo Air Pads

The Bin-Flo aerator Air Pads are a simple and efficient means of  introducing low pressure air into any dry finely ground material.



The air is equally distributed in controlled quantities to give the material an ability to flow by gravity from bin, hoppers or chutes. Bin-Flo aerators incorporate non-clogging diffusers, integral orifice and construction features which assure long, maintenance-free life.


How to Order

Order by Model No. from this table


How Many to Order

Measure the length of the sloping side of the hopper where the aerators are to be installed. Select the series to be used (L or LL) and the spacing of the units. Read down the column until the approximate length of the slope is reached.


Tank Nipple and Locknut:

  • “L” Series
  • 1/8″ (3mm) brass
  • “LL” Series
  • 1/4″ (6mm) plated steel

Spacer Washers: 

Nickel plated steel

Diffuser Frame:

Up to 180° F (82° C) cotton (canvas)

Up to 600° F (316° C) fiberglass

Diffuser Frame:

Galvanized steel 16 mesh or stainless steel mesh type 316


Zinc plated steel or stainless steel

“LL” Series has a diffusion area approximately 2½ times that of “L” Series. When installed in larger bins, it will reduce the number of aerators and the amount of piping required.


air-padair pad dimensions

Air Supply

The best and usually the most economical air supply is from a positive displacement low pressure blower. For test applications or applications involving less then 30 CFM, compressors may be used with a pressure reducing regulator and lter or moisture trap on the low pressure side. This table shoes the volume of air one Bin-Flo ® aerator (uncovered) will use at various operating pressures.


A continuous air supply must be maintained at all times to insure proper operation of the Bin-Flo® aerator. Lack of air supply will cause material build up on the aerator and result in damage to the Bin-Flo® aerator.

Air Consumption per Aerator in Cubic Feet per Minute


*3 P.S.I.G is recommended and used on most applications. 15 P.S.I.G. is maximum pressure.