Metalworking Liquid Vacuum Filters Work Better at a Lower Vacuum Level

摘要

This may come as a surprise but many users do not realize how critical the vacuum switch adjustment is for the proper overall performance of a liquid vacuum filter on metalworking coolant applications. The tendency is to set the vacuum switch as high as possible with the intent to use the maximum differential force to drive the contaminated liquid through the media. The goal is that the filter will clean more coolant with each cycle. Although this is correct for the coolant flow, it may not be good for overall performance.