Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Roughing_pump> ?p ?o. }
Showing items 1 to 26 of
26
with 100 items per page.
- Roughing_pump abstract "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. Pumps that operate in the high vacuum ranges typically don't operate or operate inefficiently at atmospheric pressures, whereas pumps that work efficiently at atmospheric pressure usually can't 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.".
- Roughing_pump wikiPageExternalLink 6581.
- Roughing_pump wikiPageExternalLink pumptab.html.
- Roughing_pump wikiPageID "9060981".
- Roughing_pump wikiPageRevisionID "555572643".
- Roughing_pump hasPhotoCollection Roughing_pump.
- Roughing_pump subject Category:Vacuum_pumps.
- Roughing_pump type AirPump102692513.
- Roughing_pump type Artifact100021939.
- Roughing_pump type Device103183080.
- Roughing_pump type Instrumentality103575240.
- Roughing_pump type MechanicalDevice103736970.
- Roughing_pump type Mechanism103738472.
- Roughing_pump type Object100002684.
- Roughing_pump type PhysicalEntity100001930.
- Roughing_pump type Pump104021798.
- Roughing_pump type VacuumPumps.
- Roughing_pump type Whole100003553.
- Roughing_pump comment "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.".
- Roughing_pump label "Roughing pump".
- Roughing_pump sameAs m.027w7fh.
- Roughing_pump sameAs Q7370902.
- Roughing_pump sameAs Q7370902.
- Roughing_pump sameAs Roughing_pump.
- Roughing_pump wasDerivedFrom Roughing_pump?oldid=555572643.
- Roughing_pump isPrimaryTopicOf Roughing_pump.