What does roughing pump mean?
Definitions for roughing pump
rough·ing pump
This dictionary definitions page includes all the possible meanings, example usage and translations of the word roughing pump.
Wikipedia
Roughing pump
A roughing pump is any vacuum pump (typically mechanical) used to initially evacuate a vacuum system, as a first stage towards achieving high vacuum or ultra high vacuum. The term "roughing pump" derives from the vacuum range it works in, "rough vacuum", above 1x10−3 torr (0.1 Pa). Pumps that operate in the high vacuum ranges typically don't operate, or only operate inefficiently, at atmospheric pressures, whereas pumps that work efficiently at atmospheric pressure usually cannot produce a vacuum lower than approximately 1x10−3 torr. One consideration for choosing a roughing pump is whether the pump uses lubricating oil that's exposed to the vacuum. This concern of "hydrocarbon backstreaming" where pump oil as a gas makes its way into the vacuum chamber, has led to oil-free pump designs on the market.
Numerology
Chaldean Numerology
The numerical value of roughing pump in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of roughing pump in Pythagorean Numerology is: 3
Translations for roughing pump
From our Multilingual Translation Dictionary
- משאבת חיסכוןHebrew
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"roughing pump." Definitions.net. STANDS4 LLC, 2024. Web. 30 Apr. 2024. <https://www.definitions.net/definition/roughing+pump>.
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