AFA® Backwashable Condensate Filters

Graver’s AFA® Condensate Filters are designed to remove iron oxide (aka “CRUD”) particles as well as other insoluble corrosion products present in the condensate systems. AFA Systems use unique Aegis AFA condensate polishing filters engineered to meet the high demands in the utility industry for repeated backwashing and particle retention.

The AFA filters are absolute rated for 1 to over 20 microns and specifically designed to meet the demands of multi-backwashing without the loss of filter integrity. Fixed pore construction eliminates dirt unloading as differential pressure increases while maintaining a removal efficiency of 99.9%.

Typical Applications:

• Pre-filter for removal of CRUD and TSS to extend deep bed demineralizer service life
• Pre-filter to prevent premature fouling of RO membranes
• Used in boiler condensate for both nuclear and fossil
plants, heat recovering steam generators and combined cycle plants

Advantages of the AFA® System

Bottom Tube Sheet Design – The bottom tube sheet provides a more efficient backwash and good distribution of the contaminants during the filter process. This design reduces the volume of water generated during each backwash by over 50%.

Bottom Inlet and Outlet Piping

  • No Header Piping to Remove during Installation
  • Enhanced Distribution of the influent Contaminant for More efficient filtration
  • Integral Backwash Air & Water Containment
  • Unique Air Surge Backwash
  • Lowest Water Volume During Backwash
  • Repeatable High ΔP Backwash
  • “Target” Backwash Option

Unique Hardware Design

  • Permanent Core-Type Guide Rod Support
  • Distribution of Contaminants and Backwash
  • Minimum Area Resistance to Water Flow
  • Quick Disconnect Hardware
  • Minimum Vessel Turnaround and Re-Assembly Time

afa table

Photo Gallery

AFA® Backwashable Condensate Filters

Graver’s AFA® Condensate Filters are designed to remove iron oxide (aka “CRUD”) particles as well as other insoluble corrosion products present in the condensate systems. AFA Systems use unique Aegis AFA condensate polishing filters engineered to meet the high demands in the utility industry for repeated backwashing and particle retention.

The AFA filters are absolute rated for 1 to over 20 microns and specifically designed to meet the demands of multi-backwashing without the loss of filter integrity. Fixed pore construction eliminates dirt unloading as differential pressure increases while maintaining a removal efficiency of 99.9%.

Typical Applications:

• Pre-filter for removal of CRUD and TSS to extend deep bed demineralizer service life
• Pre-filter to prevent premature fouling of RO membranes
• Used in boiler condensate for both nuclear and fossil
plants, heat recovering steam generators and combined cycle plants

Advantages of the AFA® System

Bottom Tube Sheet Design – The bottom tube sheet provides a more efficient backwash and good distribution of the contaminants during the filter process. This design reduces the volume of water generated during each backwash by over 50%.

Bottom Inlet and Outlet Piping

  • No Header Piping to Remove during Installation
  • Enhanced Distribution of the influent Contaminant for More efficient filtration
  • Integral Backwash Air & Water Containment
  • Unique Air Surge Backwash
  • Lowest Water Volume During Backwash
  • Repeatable High ΔP Backwash
  • “Target” Backwash Option

Unique Hardware Design

  • Permanent Core-Type Guide Rod Support
  • Distribution of Contaminants and Backwash
  • Minimum Area Resistance to Water Flow
  • Quick Disconnect Hardware
  • Minimum Vessel Turnaround and Re-Assembly Time

afa table

Photo Gallery