Adsorbent Treatment Systems
The SES522 Adsorbent Treatment Systems (Fullers Earth) remove polar contaminants such as acids, oxidation by-products, and color bodies from numerous fluids. The systems can be used as stand-alone treatment packages or in conjunction with SES320 fluid conditioning systems to regenerate degraded insulating oils and restore transformer performance.
SES522 Highlights
- Removes Acids, Color Bodies, and Sludge
- Duplex Tower Configuration Optional
- Parallel or Series Flow Processing
- Flow Rates up to 40 GPM (9085 LPH)
- Easy Vacuum Assisted Media Replacement
- Optional Fluid Preheating Systems

SES522 Fullers Earth treatment systems restore insulating oil properties by removing acids, sludge, oxidation by-products, and color bodies from contaminated insulating fluids. Systems are available in multiple tower capacities and can be configured for single or dual-tower operation.
Performance
Insulating Oil Properties Restored
- Total Acid Number (TAN)
- Neutralization Value
- Interfacial Tension (IFT)
- Color
- Dissipation Factor
- Eliminates Sludge and Oxidation Byproducts
- Oxidation Stability*
* Polar additives such as oxidation inhibitors can be removed during adsorbent treatment. Restoration requires an optional additive mixing and injection system.
Performance Requirements

System Sizes
| SES522-250 | SES522-500 | SES522-800 | |
|---|---|---|---|
| Max Tower Flow Rate | 10 GPM | 38 LPM | 25 GPM | 95 LPM | 35 GPM | 133 LPM |
| Optimum Oil Viscosity | 40 SSU | 40 SSU | 40 SSU |
| Pressure Drop @ Maximum Flow | 20 PSI | 20 PSI | 20 PSI |
| Single or Dual Towers | Either | Either | Either |
| Housing Rating | 100 PSI | 100 PSI | 100 PSI |
| Isolation Valves | Provided | Provided | Provided |
Media Handling & Flow Configuration
Spent Media Extraction
| SES522-250 | SES522-500 | SES522-800 | |
|---|---|---|---|
| Tilt for Media Extraction | Manual | Hydraulic Assisted | Hydraulic Assisted |
| Vacuum Assisted New Media Fill | High Speed | High Speed | High Speed |
| Vacuum Source | Optional | Optional | Optional |
| Spent Media Blowdown Tank | Provided | Provided | Provided |
| Air Compressor | Optional | Optional | Optional |
Dual Tower Flow Patterns
| Either Tower | Yes |
| Parallel Through Both Towers | Yes |
| Series Through Both Towers | Yes |
Options
Customization Options for SES522 Systems
- 250, 500, or 800 lb Tower Capacities
- Flow Capacities up to 2,400 GPH
- Single and Dual Tower Systems
- Stationary Vertical and Mobile Tilt Media Removal
- Integrated Oil Storage for Blowdown and Makeup Oil
- Media Fill Vacuum Source
- Inhibitor Mixing and Injection System
Mounting
SES522 systems are available in stationary and mobile configurations and can be configured as stand-alone regeneration systems or integrated with transformer oil conditioning equipment.
Straight Truck Mounting
All straight truck chassis and bodies are custom ordered to accommodate the equipment option package, maximum terrain, load, weight distribution and towing requirements. Maximum straight truck box length is 28FT.Skid Mounting
Built-to-order skid-mounted equipment can normally be built to meet customer footprint and access requirements. Consult SESCO with special requests.- id 102:
- Image file images/bagallery/gallery-9/thumbnail/category-1/0154-cutout-with-truck.png does not exist
Enclosed Deck over Axle Cargo Trailer Mounting
Unlike a standard cargo trailer, the equipment deck on a “deckover” cargo trailer rides above the axle assembly and incorporates a leaf spring or air bag suspension. The “deckover” design accommodates wider, longer, and heavier equipment payloads. All “deckover” cargo trailers are specifically engineered to accommodate equipment load and weight distribution to provide optimum towing conditions. Weight capacities (GVRW) range from 20,000 to 30,000 Lbs. SESCO will provide the trailer size and weight capacity options available for the system being quoted. Dry Van Trailer Mounting
The size and weight capacities of a dry van trailer accommodate a wide variety of options and equipment accessories. Dry van trailer packages are specifically engineered to accommodate equipment loading axle weight distribution regulations.ISO Shipping Container Mounting
Equipment can be permanently or temporarily packaged in standard ISO shipping containers to facilitate ocean transportation. Containers are available in standard lengths. If the equipment is permanently mounted, non-standard access doors and other openings must be installed at the destination. Installation design and material kits are provided. On land the containerized equipment is transported using standard ISO container chassis built to meet the local highway standards of the destination country.Cargo Trailer Mounting
All cargo trailers are specifically engineered to accommodate equipment load, weight distribution, to provide optimum towing conditions. Cargo trailer weight capacities (GVRW) range from 4,000 to 16,000 Lbs. SESCO will provide the cargo trailer size and weight capacity options available for the system being quoted.