Help with Rotary Vane Vacuum Pumps and Systems facets:
Operating Vacuum
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| Ultimate Operating Vacuum: | Vacuum or pressure is often measured in torr, or mm Hg referenced above absolute zero pressure. Sometimes the following reference terms are used: 1 torr and above: Rough Vacuum 0.001 to 1.0 torr: Medium Vacuum Below 0.001 torr: High Vacuum There are other terms and standards used, such as medium vacuum and ultra high vacuum; consult supplier for application specifications. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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Pumping Speed
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| Pumping Speed: | Pumping speed or displacements relates to the air volume capacity of the vacuum pump. Vacuum pumps are flow-rated according to the volume of air exhausted with no pressure differential across the pump. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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Applications
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| Your choices are... | |||
| General Purpose / Industrial | General purpose uses covers a wide range of industrial and manufacturing applications. | ||
| Analytical / Scientific | Analytical or scientific applications include electron microscopes, analytical spectrometers, or physics experimentation. | ||
| Chemical / Corrosive Gas | Designed for use with chemicals and/or corrosive gases and vapors. | ||
| Food Processing | Food processing applications include freeze drying, conveying, and sanitary packaging. | ||
| Manufacturing Processing | Vacuum pumps designed for use in manufacturing applications such as plastics vacuum forming, degassing, vacuum sintering and casting, etc. | ||
| Medical / Laboratory | Specialized for use in highly specialized medical or biomedical laboratory applications. | ||
| Packaging | Vacuum packaging applications include shrink-wrapping and packaging of food, candy, electronic and medical devices and components. | ||
| Pharmaceutical / Sanitary | Sanitary applications, such as pharmaceutical or food and beverage processing, require features such as sterilizability, nonabsorbent seals, and other clean components. | ||
| Power Generation | Applications such as condenser venting and vapor recovery in power generation systems such as hydroelectric, nuclear, or fossil fuel power generation. | ||
| Semiconductor Manufacturing | Designed specifically for the demands of semiconductor, chip, or board manufacturing applications. | ||
| Other | Other unlisted, specialized, or proprietary application. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Compression / Pressure Service | Some vacuum pumps may be used for compression of air or other gases. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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More Specs
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| Lubrication Style | |||
| Your choices are... | |||
| Dry / Oil-less | Dry or oil-less lubrication styles use permanently sealed bearings or other isolation technology eliminate oil in the fluid train. | ||
| Splash Lubrication | Oil splashes onto components from bath. | ||
| Oil-flooded | Oil-flooded lubrication is sometimes used in rotary vane and other mechanical pump styles. This type of lubrication involves a heavy application of oil for moving parts. | ||
| Positive Pressure | In positive pressure lubrication, oil pressure is maintained for highest level of lubrication. | ||
| Other | Other unlisted or specialized lubrication technique. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Vacuum Pump Stages | Stages can be sequential stages of the same technology type (mechanical or Venturi), or two or more different type pumps packaged together, such as a rough, medium, and high vacuum pump system of different technologies. | ||
| Your choices are... | |||
| Single Stage | In single stage of evacuation, air is moved directly from chamber into atmosphere. | ||
| Two Stage | Air is evacuated in two stages for lower absolute pressure. | ||
| Three Stage | Three chambers are used in succession. | ||
| Four or More Stages | Four or more evacuation stages are employed. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Power Source | |||
| Your choices are... | |||
| None | Not having a power source is an option for some high vacuum pumps such as turbomolecular, where vacuum is increased by molecular absorption rather than mechanically moving parts. | ||
| Compressed Air / Fluid | In compressed air / fluid systems, power is derived from nonelectric media such as motive fluid. Compressed air is most common, but hydraulic or other power sources are possible. | ||
| DC Power | DC power includes battery and power supply inputs. | ||
| AC Single Phase | Single-phase AC motor voltages include 115V/60Hz and 230V/50Hz. | ||
| AC Three Phase | Many industrial devices run from three phase power such as 208V or 377V. | ||
| Engine | Pumps whose primary power comes from an engine, such as a gasoline or diesel engine. | ||
| Magnetic Drive | Magnetic drives typically use a rotating magnetic field to drive the pump impeller. This can allow for seal-less construction and is often used for pumping clean liquids or gases. | ||
| Other | Other unlisted or specialized power source. | ||
| Search Logic: | Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Mounting | |||
| Your choices are... | |||
| Benchtop | Benchtop mounting is used for products small enough to mount or be placed on a bench or table. These models may include portability. | ||
| Cart / Portable | Portable mounts include wheels, casters, or easily movable frames for frequent relocation. | ||
| Floor / Skid | The device rests on floor or on a skid; they are typically used for larger vacuum pumps. | ||
| Permanent Installation | Permanent installation is used with very large systems or stations that are installed permanently in one place. | ||
| Other | Other unlisted, specialized, or proprietary mounting style. | ||
| Search Logic: | Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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