What is the difference between
CFM and SCFM?
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CFM is air at pressure.
SCFM is air at standard conditions (14.7 PSIA, 68ºF,
36% RH).
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What is compression ratio?
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Compression ratio is the final pressure plus 14.7
PSIA, divided by 14.7 PSA. This ratio is how much
the air is squeezed (pressure) or how much the air
is expanded (volume).
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How do I convert meters cubed/hour
to cubic feet/minute?
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Multiply meters cubed/hour x .58 to get the CFM.
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How do I convert liters/minute
to cubic feet/minute?
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Multiply liters/minute x .035 to get the CFM.
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What is the maximum vacuum your
pumps can achieve?
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Short Answer: 30" Hg (mercury). This
is maximum at sea level.
Long Answer: Depends on type of pump - i.e.
rotary, vane, piston, diaphragm; lubricated/non-lubricated.
The maximum is still 29.92" (approximately 30"
Hg).
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