Filter Sizing Information
AC and AD Series Aquacon® Cartridges

FILTER SIZING INFORMATION

1. Select the desired filter cartridge type and micron rating.
   
2. Determine the viscosity at the operating temperature for the fluid being filtered.
   See Oil Viscosity Characteristics - Data Sheet #1533.
   
3. From the cartridge flow rate data, estimate the flow rate that will result in a 2 psi differential pressure.
   
4. Divide the total desired flow rate by the flow rate determined in 3, above. This will give the required number of cartridges.
   
5. Select a filter housing that will hold the required number of cartridges.

NOTES:

• The recommended maximum flow rate can be exceeded by as much as 50% for “fuse-monitor” type applications with fuels and other low viscosity fluids. However, water holding capacity will be reduced and pressure losses from the filter housing itself may become excessive.
  
• For higher viscosity fluids, a 5 psi differential pressure is frequently used for cartridge selection. This is acceptable, but you should consider the resulting loss in water capacity.

CARTRIDGE FLOW RATE (USGPM) VS. VISCOSITY DATA
FOR 2 PSI AND 5 PSI INITIAL PRESSURE DROPS

NOTES:

1. Figures in table are flow rates (USGPM) that will cause a pressure drop of 2 or 5 psi across the cartridge.
   
2. “CAP” is the water holding capacity in milliliters for 33 SUS (2 CS) fuel at the flow rates shown. These flow rates are the generally recommended maximum values for the specific cartridges.
   

WATER HOLDING CAPACITY

Water capacity decreases when viscosity or flow rate increases. The graphs below show typical characteristics. For any specific application you must trade off between capacity (how much water the cartridge will hold before it must be changed) and flow rate (size of filter housing and initial cost). For long term operating cost benefits, it is always best to use a larger housing (reduce the flow rate per cartridge).

Filter Sizing Information AC and AD Series Aquacon® Cartridges - Data Sheet #1709