Because the small pumps use compressed air and constantly function at a lower pressure, pressure fluctuations are uncommon.
Companies in this press-release
PSI: PSI: Vacuum pumps
Designed for use in high-flow applications that call for moderate vacuum levels, the low-pressure M Series of pneumatically driven pumps from PIAB (Rockland, MA) provide up to 27" Hg vacuum at an inlet pressure of 49 psi.
Apr 30, 1999
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