A sudden increase in air compressor oil consumption is 90% likely due to these 3 reasons.

A sudden increase in air compressor oil consumption not only increases operating costs but may also lead to excessive oil content in the compressed air, affecting downstream air-consuming equipment. Under normal circumstances, a screw air compressor consumes approximately 2-3 milligrams of lubricating oil per 10,000 cubic meters of compressed air. A sudden increase in oil consumption is usually a sign of equipment malfunction.

This article analyzes three main reasons for increased fuel consumption to help quickly pinpoint the problem.

Reason 1: Oil separator failure

The function of the oil separator is to separate the lubricating oil from the compressed air and return it to the oil tank for reuse. If the oil separator core fails, the lubricating oil is discharged with the compressed air, leading to a sharp increase in oil consumption.

Solutions:

l Replace the oil separator element (generally every 3000-4000 hours).

l Check if the air filter is malfunctioning and prevent dust from entering.

Reason 2: Blockage in the oil return line

The lubricating oil separated by the oil separator needs to flow back to the front end of the screw compressor through the oil return line. If the oil return line is blocked, the lubricating oil cannot flow back and can only be discharged with the compressed air..

Solutions:

l Disassemble and clean the return oil pipe.

l Check if the return oil check valve is functioning properly.

l Clean or replace the return oil filter.

Reason 3: Aging and leakage of seals

Aging and damage to the seals inside the air compressor cause lubricating oil to leak from the seals, leading to increased oil consumption. The symptoms vary depending on the location of the leak.

Solutions:

l Replace worn-out seals.

l Tighten loose pipe fittings.

l Check seals for oil and temperature resistance..

A sudden increase in fuel consumption is not a trivial matter; timely investigation and handling are necessary to avoid greater losses.

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