Vacuum pump - Wikipedia

A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity....

TG450F - Osaka Vacuum, Ltd.:Turbo Molecular Pumps

Osaka Vacuum Ltd.:Turbo Molecular Pumps. ... Ultimate pressure. (Pa). <1x10-6. (Torr). <7.5x10-9. Max. throughput*1 (sccm). N2. 500. Startup time (min). 2-2.5. Shutdown time (min). 5-6.5. Max. backing pressure ... [Corresponding gases]; Some service gases can deteriorate the lubrication grease and internal parts. Contact ......

Mechanical vaccum pumps

with his own suction pumps (reported by the Roman engineer Vitruvius) to produced the famous. Magdeburg .... Gaede's 1905 mercury sealed rotary vacuum and molecular drag pump of 1912 also played a role. .... a lower cost where low ultimate vacuum is not required and are used for higher inlet pressures or high....

Grease Pump, Grease Pump Suppliers and Manufacturers at ...

Grease Pump, Wholesale Various High Quality Grease Pump Products from Global Grease Pump Suppliers and Grease Pump Factory,Importer,Exporter at Alibaba. ... lubrication oil grease manual hand rotary chemical pump ..... grease lubricated compound molecular pump for high pressure suction dry vacuum pump....

Vacuum Greases and Vacuum Pump Oils Information - GlobalSpec

Vacuum grease is silicone-based and used as a sealant in vacuum and pressure systems. Vacuum greases have low volatility and is highly resistant to water, alkalis, and chemicals. Vacuum pump oil is low vapor pressure oil used in a vacuum diffusion pumps to capture molecules, which are continuously removed by the ......

V4: Vacuum pumps: diaphragm, rotary vane & scroll pumps

Vacuum pumps and vacuum filters including diaphragm pumps, rotary vane pumps, dry scroll pumps, inlet filters and exhaust filters - Page V4. ... High pressure molecular pumps and diffusion pumps are available ‐ ask. .... The pump is fitted with an electric valve venting the pump for easy restart and preventing oil suction....

An Introduction to Vacuum Pumps - Vac Aero

Jan 13, 2016 ... The same number of gas molecules are discharged from the pump as enter it and the gas is slightly above atmospheric pressure when expelled. The ratio of the exhaust ... Although dry pumps may use oil or grease in the pump gears and bearings, it is sealed from the swept gas. Dry pumps reduce the risk ......

vacuum pumps and systems - NASA Technical Reports Server (NTRS)

Lubrication is external to the vacuum pumping ... molecular flow pressure range and the blower lobes become coated with oil from the backing pump. a dry gas to maintain viscous flow pressure level in the backing pump or by limit- ... overloading (high pressure suction) simply slows the pump; Roots pumps overheat and....

Oil Free Dry Vacuum Pumps - Vacuum Research Corporation

Dry Vacuum Pumps. Instruction Manual For Operation and Maintenance of. 2. By 8 Duplex. 2. By 8 Series. 1. By 8 Simplex. 1. By 16 Parallel. Oil Free Vacuum Pumps. Price: $20.00. Part #: ... Molecular Drag Pumps and Roots Blowers . .... may produce very high discharge pressures if the discharge lines are blocked....

Osaka Vacuum, Ltd.:Turbo Molecular Pumps

Turbo Molecular Pumps (Compound Molecular Pumps) Exhaust Theory. Turbo molecular ... Gas molecules inbound from the high vacuum side enter the moving blades and try to exit in various directions. However, the ... Uses grease lubricated ball bearings for a pump that is small, lightweight, and low cost. The shock ......

Vacuum pump - Wikipedia

A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity....

V4: Vacuum pumps: diaphragm, rotary vane & scroll pumps

Vacuum pumps and vacuum filters including diaphragm pumps, rotary vane pumps, dry scroll pumps, inlet filters and exhaust filters - Page V4. ... High pressure molecular pumps and diffusion pumps are available ‐ ask. .... The pump is fitted with an electric valve venting the pump for easy restart and preventing oil suction....

Vacuum pump - 3D CAD Models & 2D Drawings

A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. ... The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity. ... Oil-Lubricated Vacuum Pumps EVE-OG - EVE-OG 100 AC3...

An Introduction to Vacuum Pumps - Vac Aero

Jan 13, 2016 ... The same number of gas molecules are discharged from the pump as enter it and the gas is slightly above atmospheric pressure when expelled. The ratio of the exhaust ... Although dry pumps may use oil or grease in the pump gears and bearings, it is sealed from the swept gas. Dry pumps reduce the risk ......

Mechanical vaccum pumps

with his own suction pumps (reported by the Roman engineer Vitruvius) to produced the famous. Magdeburg .... Gaede's 1905 mercury sealed rotary vacuum and molecular drag pump of 1912 also played a role. .... a lower cost where low ultimate vacuum is not required and are used for higher inlet pressures or high....

TG220F - Osaka Vacuum, Ltd.:Turbo Molecular Pumps

Ultimate pressure. (Pa). <1x10-6. (Torr). <7.5x10-9. Max. throughput*1 (sccm). N2 . 400. Startup time (min). 1-1.2. Shutdown time (min). 2.5-3.5. Max. backing pressure ... Recommended backing vacuum pump (L/min) ... [Corresponding gases]; Some service gases can deteriorate the lubrication grease and internal parts....

Vacuum Greases and Vacuum Pump Oils Information - GlobalSpec

Vacuum grease is silicone-based and used as a sealant in vacuum and pressure systems. Vacuum greases have low volatility and is highly resistant to water, alkalis, and chemicals. Vacuum pump oil is low vapor pressure oil used in a vacuum diffusion pumps to capture molecules, which are continuously removed by the ......

vacuum pumps and systems - NASA Technical Reports Server (NTRS)

Lubrication is external to the vacuum pumping ... molecular flow pressure range and the blower lobes become coated with oil from the backing pump. a dry gas to maintain viscous flow pressure level in the backing pump or by limit- ... overloading (high pressure suction) simply slows the pump; Roots pumps overheat and....

Oil Free Dry Vacuum Pumps - Vacuum Research Corporation

Dry Vacuum Pumps. Instruction Manual For Operation and Maintenance of. 2. By 8 Duplex. 2. By 8 Series. 1. By 8 Simplex. 1. By 16 Parallel. Oil Free Vacuum Pumps. Price: $20.00. Part #: ... Molecular Drag Pumps and Roots Blowers . .... may produce very high discharge pressures if the discharge lines are blocked....

TG70F - Osaka Vacuum, Ltd.:Turbo Molecular Pumps

Ultimate pressure (Pa/Torr). ISO-R. <5x10-7/<3.8x10-9. CF ... Recommended backing vacuum pump (L/min). ≥25. Position. Any orientation ... (For details, notify our sales representative); [Corresponding gases]; Some service gases can deteriorate the lubrication grease and internal parts. Contact Osaka Vacuum for a list of ......