The proper treatment and upgrading of the insulating fluid / transformer oil will result in the improvement of the properties of the entire insulating media of power transformers.

The principal functions of the insulating liquid are to serve as a dielectric material and an effective coolant. To perform these functions, the insulating liquid must have the necessary qualities at the time of initial impregnation and filling at the factory and later maintain the same quality in the field operation.

The Pro-Filtration High Vacuum Process upgrades the new or used electrical insulating liquids and transformer oil.

A High Vacuum Process is used for dehydrating and degasification of electrical insulating fluids (transformer oil) to increase and maintain their dielectric strength. The processing includes the removal of free and soluble water, free and dissolved air and gases, and particulate matter.

Removes gases
Removes free, emulsified and dissolved moisture
Removes particulate
Stationary, portable or mobile
Flow rates range from 5 – 70 GPM

Restores transformer oil to like new condition. Removes acids, sludge and products of oxidation. These systems are typically used in conjunction with a degassing and filtration system. And, are designed to fit in a 20’ or 40’ cargo container for ease of transport.

Pro-Filtration low-vacuum oil purifiers are offered in two service categories: Dehydrate, degas, and filter transformer and other insulating oils.  Moisture removal rates are typically <10 ppm.

Secondly, Pro-Filtration’s Pro-Vac Series of vacuum dehydrators are offered to remove water, particulate and light end contaminants from lubricating, hydraulic, gear and other industrial oils.

Pro-Vac systems include filtration to remove particulate contamination below 1 micron using multi-layered micro glass, ßx(c)≥1000, filter media. Micron efficiencies range from 25µm down to 1µm in order to attain any desired ISO Cleanliness Code.

We manufacture various sizes to process any size reservoir, tank or transformer. Our systems are available in trailers for mobility. Sizes range from 3 gallon/minute to 70 gallon/minute.

Applications Include:
• Oil Purification (Transformer, Hydraulic, Industrial Insulating Oils)
• Vacuum Filling Transformers
• Oil Reclamation
• CT Scan and X-Ray Tube Insulating Oil
• Oil Recycling
• Offshore/Marine Oil Purification

Standard Systems Include:
1. Low watt density fin tube heaters create maximum surface area for rapid oil heating without damaging the oil. Heaters are protected by a flow switch that will de-energize the heaters in loss of flow conditions. Any over temperature thermocouple offers secondary protection against thermal damage.

2. The vacuum chamber is the central vessel of a vacuum dehydrator. We offer large void space volume and permanent random packing to create massive surface area so that the oil, as it is cascading through the packing, is exposed to the vacuum conditions as long as possible. A secondary benefit to this packing is that there are no filters / dispersal elements to change, thus lowering your cost of operation.

3. Instrumentation for unattended operation.

4. Centralized NEMA 4 Control Panel and Gauge Panel to provide the operator with information needed to insure proper operation of the system.

5. Automatic foam control system.

6. Air Cooled Condenser properly sized to condense vapors to liquid under vacuum conditions. Water drops out in a condensate tank to keep moisture from collecting in the vacuum pump.

7. High quality Industrial Filter Vessels with swing bolt closures for ease of filter change outs. Filter elements utilize the latest micro glass filter element media sourced by the top media producers in the USA to insure ßx(c)≥1000 efficiency as per ISO 16889. Dirty filter light(s) alert the operator when filter element change outs are needed.

8. High quality welded pipe braced and flanged where possible.

9. Heavy duty base with containment, exterior cage, fork lift slots, lifting eyes and casters (when required).