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In a typical high-load application requiring constant lubrication, moving parts are partly immersed in a fixed level of lubricant. Because the systems are contained in a housing, heat and contaminants can accumulate rapidly and potentially defeat the protection provided by the lubricant. A Circulating Oil System constantly treats a portion of the total lubricant without interrupting the operation of the equipment.

The basic components of a Circulating Oil System are:

• A reservoir for collection of the fluid by gravity from the main equipment
• A pump to draw fluid from the reservoir and create the pressure needed to return the fluid back to its source
• A filter to clean the fluid
• An air- or water-cooled heat exchanger to return the fluid to the proper operating temperature
• A flow regulator to manage the rate of return
• A bypass valve to direct any excess flow back into the reservoir

The manufacturer of the bearing or other equipment is the source for critical information for lubrication, which typically includes fluid type, flow rate, pressure, temperature range, and reserve fluid capacity. Oil-Rite Corporation designs a unit to meet those requirements, which includes all mechanical and electrical controls as specified by the application.

Circulating Oil Systems are commonly found in paper, rubber, textile, and steel plants. They are also in wide use in municipal sewer systems, power generating facilities, and drilling operations.

Oil-Rite designs and builds Circulating Oil Systems in its facility located in Manitowoc, Wisconsin.