Model BA-OHM
Portable Oil Heating System

This module consists of a high-quality, two-stage vacuum pump and vacuum booster combination in the CFM capacity of your choice.


These economical Baron units are compact, light and portable systems for the assisted heat up of transformers being dried in the field. They can be used to preheat or boost heat by hot oil circulation prior to or during processing with a Baron oil purification trailer.

Systems are available with:

  • A wide variety of circulating pump sizes
  • A wide range of heater sizes
  • Optional particulate filtration
  • Vacuum systems for pumping vacuum on the apparatus during heat up

Standard Features

  • Heavy-duty, rotary piston vacuum pump with gas ballast valve
  • Roots-type vacuum booster with internal bypass for startup at atmospheric pressure and fast pump-down oil trap to protect the vacuum pumps from the oil overflow into the vacuum piping
  • Electronic vacuum gauge
  • Anti-suck-back valve to protect vacuum loss in the system in the event of power loss
  • Inlet isolation valve
  • Inlet camlock couplers with dust caps

Electrical Requirements

All systems are available in every standard three-phase voltage up to 600 V in either 50 or 60 Hz. Specify desired voltage at time of inquiry.


A full range of accessories is available for these systems, including:

  • ASME code design (labeling available upon request) filter housing for particulate removal in the oil circulation loop. This filter uses industry standard 6" x 18" pleated paper 0.5 micron elements and is sized according to the desired flow rate.
  • Cuno Zeta Plus filter housing and elements
  • Totalizing meter
  • Oil and vacuum hoses
  • Weatherproof housing
  • Open-type or van-style trailer

What can we do for you?

Baron USA specializes in providing customized support, training, products and solutions to meet your specific needs. To learn how Baron USA can help you, call 93I.528.8476 or email us

Call Us