SES322 - Batch
SES322 Batch Oil Purifier

This compact versatile multi-purpose batch or single pass oil conditioning and regeneration system can be used to restore color and remove dissolved water, gas, particulate, acids, oxidation byproducts, from almost any industrial lubricant or dielectric fluid.

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This versatile single or multi-pass 60-gallon batch oil processing system can be used to condition or completely regenerate a wide variety of new and in-service mineral and synthetic fluids.. Restore color, correct acidity, remove dissolved water, gas, particulate, and oxidation by-products  Cable oils, specialty dielectric fluids, ester compressor fluids, phosphate ester hydraulic fluids and  numerous transmission fluids are just a few of the common SES322 applications


SES322 Highlights

Conditions  or Regenerates

  60 GPH Single Pass  and 180 Gal Batch Processing

  Viscosities up to 2000 SSU

12 Kw Electric Heating - Single & 3 Phase Options 

  Use as 130  Cfm Stand Alone Vacuum System

Stationary and Mobile Options


Cable Oils and Other Specialty Dielectric Fluids

SES322 is used as a specialized dielectric fluid conditioning system to prepare mineral-based and synthetic dielectric fluids for high voltage equipment and cable service. Fluid insulating properties are improved to acceptable levels by removing dissolved water, dissolved gas, and solid matter contamination. If necessary, polar contaminants can also be removed using the process loop optional activated alumina cartridge filter. The discharge pressure is adjustable to 175 psi to handle challenging cable filling requirements.
The SES322 system is specifically designed to accommodate a wide range of cable dielectric fluids including the more viscous fluids DF500.  

Polyolester Compressor Oils

Many of the new environmentally friendly refrigerants require synthetic compressor lubrication fluids. These Polyolester fluids are highly hydrophilic with a very high potential water saturation levels. In most cases, the fluids must be dried prior to service. The SES322 can be used as a 55-gallon batch high vacuum dehydration system to dry and hold a wide viscosity range of polyolester fluids in preparation for compressor charging. If necessary polar contaminants can also be removed using the process loop optional activated alumina cartridge filter. The discharge pressure is adjustable to 175 psi to facilitate compressor charging equipment if necessary. Optional metering is also available in custom applications.
Contact sales for custom batch and single pass Polyolester conditioning systems. 

Dual Processing Modes - (Panel Selectable)

The SES322 has enough vacuum, heating, storage capacity to permit both batch and single pass processing.   In batch mode, an internal 304 SS storage tank is used to provide multiple passes through the process loop.  Batch quantities can range from 10 to 60 gallons.  Single-pass mode requires the batch reservoir to be empty and operates at a reduced flow rate to provide straight-through processing. Batch and single pass processing modes switch selectable from the control panel.    

 Condition or Regenerate as Required.

The SES322 standard conditioning treatment process loop uses heat, vacuum processing, and two-stage filtration to remove fluid dissolved water, gas and particulate. An optional adsorbent treatment phase can be used to regenerate badly degraded fluids by removing polar contaminants such as acid, oxidation byproducts, sludge, and color bodies.   

Accurate Fail Safe Oil Temperature Control

The SES322 heating system uses high surface area heating elements to provide gentile low watt density indirect oil heating.  A digital PID temperature controller is used to provide accurate panel adjustable temperature control. Flow and high-temperature system interlocks are provided for worry-free fail-safe operation. 

Stand Alone Vacuum System 

Need a vacuum system?  Whether it's for everyday use or emergency use the SES322 has an isolated external connection allowing it to be used as a stand-alone 130 CFM vacuum system capable of achieving pressures as low as 0.1 torr.  A panel mounted full-scale digital vacuum gauge is provided to monitor the vacuum system pressure.

Built-in 100% Spill Retention

 The SES322 skid is designed to contain minor drips and major spills. The skid integrated tank provides 100% containment of any potential system spill.  Including the entire volume of the 60-gallon batch tank. 

Processing Rate
Batch Mode

180 GPH (680 LPH)

60 Gallon Capacity

Single Pass Mode -180 GPH (680 LPH)
ultimate Processed oil quality (mINERAL oIL)
Dielectric Strength
(ASTM-D1816-84A 2mm gap
>60 Kv-
(Dielectric Fluids)
Moisture Content  Typically 1-10 ppm
Total Gas Content  < 0.25%
Particulate Content 0.5 Micron @ Beta 75

Polar Contamination 

(Treatment stage is optional)

Effect on oil properties
will vary with the application
ultimate Processed oil quality (nATURAL & sYNTHETIC ESTERS)
Dielectric Strength
(ASTM-D1816-84A 2mm gap
>65 Kv-
(Dielectric Fluids)
Moisture Content  Typically 15-40 ppm
Total Gas Content  < 0.25%
Particulate Content 0.5 Micron @ Beta 75

Polar Contamination 

(Treatment stage is optional)

Effect on oil properties
will vary with the application
Processing conditions
Treatment Stages / Pass

Oil Heating
3 Micron Filtration (Beta 200)

Vacuum Degasification

Vacuum Dehydration

Polar Contaminant Adsorption (Bypass Included)

0.5 Micron Filtration (Beta 75)

Temperature Range Adjustable
120F° ( 49C°) to 190F° ( 88C°)
Vacuum limits 0.1 torr
Vacuum Capacity 140 CFM @ 0.5 torr
Suction Lift 12 Ft
Discharge Pressure Adjustable 40-175 PSI
Heating system
Capacity 12Kw (Dual 6Kw switchable Banks)
Watt Density 11.5 Watts/in²
Max Temperature Rise / Pass Batch & Single Pass Mode 70F° @ 12Kw 

English 55” W x 55” D x 74” T
Metric 140cm W x 140cm D x 188cm T
Inlet 1.25 FNPT
Discharge 0.75 FNPT
Vacuum  2" CAM
Power Requirements
480V/3PH/60HZ 25A
240V/2PH/60HZ 50A
230V/1PH/60HZ 80A
60A @ 6Kw
English 2850 Lbs (Dry)
≈3500 Lbs (Full Batch)
Metric 1,293 Kg (Dry)
≈1587 Kg (Full Batch)

Operating Voltage 

  • 240/1/60
  • 240/3/60
  • 480/3/60
  • 380/3/60
  • 575/3/60


  • Outlet Moisture  & Temperature Monitor

The SES322 can be stationary skid-mounted or packaged in an easy-to-tow cargo trailer for mobile applications.

  • Skid Mounting
    Built-to-order skid-mounted equipment can normally be built to meet customer footprint and access requirements.  Consult SESCO with special requests.
  • 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.